Merge branch 'develop'

author: hathach <[email protected]> 2018-12-12 16:49:38 +0700
committer: hathach <[email protected]> 2018-12-12 16:49:38 +0700
commit: aa17ec60d3abdc3179d4d496bc072ed633bb67ce (patch)
tree: cda3b554b289ab50f650aa0e7b30adb79e33be22 /src/class
parent: c4a37237171855c0147699c263673c88f2fa6d5d (diff)
parent: 908931320e206e6ae6610cfc56b2a0950f252172 (diff)
22 files changed, 6480 insertions, 0 deletions
diff --git a/src/class/cdc/cdc.h b/src/class/cdc/cdc.h
new file mode 100644
index 000000000..d07c62429
--- /dev/null
+++ b/src/class/cdc/cdc.h
@@ -0,0 +1,413 @@
+/**************************************************************************/
+/*!
+    @file     cdc.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \ingroup group_class
+ *  \defgroup ClassDriver_CDC Communication Device Class (CDC)
+ *            Currently only Abstract Control Model subclass is supported
+ *  @{ */
+
+#ifndef _TUSB_CDC_H__
+#define _TUSB_CDC_H__
+
+#include "common/tusb_common.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/** \defgroup ClassDriver_CDC_Common Common Definitions
+ *  @{ */
+
+
+/// CDC Pipe ID, used to indicate which pipe the API is addressing to (Notification, Out, In)
+typedef enum
+{
+  CDC_PIPE_NOTIFICATION , ///< Notification pipe
+  CDC_PIPE_DATA_IN      , ///< Data in pipe
+  CDC_PIPE_DATA_OUT     , ///< Data out pipe
+  CDC_PIPE_ERROR        , ///< Invalid Pipe ID
+}cdc_pipeid_t;
+
+//--------------------------------------------------------------------+
+// CDC COMMUNICATION INTERFACE CLASS
+//--------------------------------------------------------------------+
+/// Communication Interface Subclass Codes
+typedef enum
+{
+  CDC_COMM_SUBCLASS_DIRECT_LINE_CONTROL_MODEL = 0x01  , ///< Direct Line Control Model  [USBPSTN1.2]
+  CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL            , ///< Abstract Control Model  [USBPSTN1.2]
+  CDC_COMM_SUBCLASS_TELEPHONE_CONTROL_MODEL           , ///< Telephone Control Model  [USBPSTN1.2]
+  CDC_COMM_SUBCLASS_MULTICHANNEL_CONTROL_MODEL        , ///< Multi-Channel Control Model  [USBISDN1.2]
+  CDC_COMM_SUBCLASS_CAPI_CONTROL_MODEL                , ///< CAPI Control Model  [USBISDN1.2]
+  CDC_COMM_SUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL , ///< Ethernet Networking Control Model  [USBECM1.2]
+  CDC_COMM_SUBCLASS_ATM_NETWORKING_CONTROL_MODEL      , ///< ATM Networking Control Model  [USBATM1.2]
+  CDC_COMM_SUBCLASS_WIRELESS_HANDSET_CONTROL_MODEL    , ///< Wireless Handset Control Model  [USBWMC1.1]
+  CDC_COMM_SUBCLASS_DEVICE_MANAGEMENT                 , ///< Device Management  [USBWMC1.1]
+  CDC_COMM_SUBCLASS_MOBILE_DIRECT_LINE_MODEL          , ///< Mobile Direct Line Model  [USBWMC1.1]
+  CDC_COMM_SUBCLASS_OBEX                              , ///< OBEX  [USBWMC1.1]
+  CDC_COMM_SUBCLASS_ETHERNET_EMULATION_MODEL            ///< Ethernet Emulation Model  [USBEEM1.0]
+} cdc_comm_sublcass_type_t;
+
+/// Communication Interface Protocol Codes
+typedef enum
+{
+  CDC_COMM_PROTOCOL_NONE                   = 0x00 , ///< No specific protocol
+  CDC_COMM_PROTOCOL_ATCOMMAND                     , ///< AT Commands: V.250 etc
+  CDC_COMM_PROTOCOL_ATCOMMAND_PCCA_101            , ///< AT Commands defined by PCCA-101
+  CDC_COMM_PROTOCOL_ATCOMMAND_PCCA_101_AND_ANNEXO , ///< AT Commands defined by PCCA-101 & Annex O
+  CDC_COMM_PROTOCOL_ATCOMMAND_GSM_707             , ///< AT Commands defined by GSM 07.07
+  CDC_COMM_PROTOCOL_ATCOMMAND_3GPP_27007          , ///< AT Commands defined by 3GPP 27.007
+  CDC_COMM_PROTOCOL_ATCOMMAND_CDMA                , ///< AT Commands defined by TIA for CDMA
+  CDC_COMM_PROTOCOL_ETHERNET_EMULATION_MODEL        ///< Ethernet Emulation Model
+} cdc_comm_protocol_type_t;
+
+//------------- SubType Descriptor in COMM Functional Descriptor -------------//
+/// Communication Interface SubType Descriptor
+typedef enum
+{
+  CDC_FUNC_DESC_HEADER                                           = 0x00 , ///< Header Functional Descriptor, which marks the beginning of the concatenated set of functional descriptors for the interface.
+  CDC_FUNC_DESC_CALL_MANAGEMENT                                  = 0x01 , ///< Call Management Functional Descriptor.
+  CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT                      = 0x02 , ///< Abstract Control Management Functional Descriptor.
+  CDC_FUNC_DESC_DIRECT_LINE_MANAGEMENT                           = 0x03 , ///< Direct Line Management Functional Descriptor.
+  CDC_FUNC_DESC_TELEPHONE_RINGER                                 = 0x04 , ///< Telephone Ringer Functional Descriptor.
+  CDC_FUNC_DESC_TELEPHONE_CALL_AND_LINE_STATE_REPORTING_CAPACITY = 0x05 , ///< Telephone Call and Line State Reporting Capabilities Functional Descriptor.
+  CDC_FUNC_DESC_UNION                                            = 0x06 , ///< Union Functional Descriptor
+  CDC_FUNC_DESC_COUNTRY_SELECTION                                = 0x07 , ///< Country Selection Functional Descriptor
+  CDC_FUNC_DESC_TELEPHONE_OPERATIONAL_MODES                      = 0x08 , ///< Telephone Operational ModesFunctional Descriptor
+  CDC_FUNC_DESC_USB_TERMINAL                                     = 0x09 , ///< USB Terminal Functional Descriptor
+  CDC_FUNC_DESC_NETWORK_CHANNEL_TERMINAL                         = 0x0A , ///< Network Channel Terminal Descriptor
+  CDC_FUNC_DESC_PROTOCOL_UNIT                                    = 0x0B , ///< Protocol Unit Functional Descriptor
+  CDC_FUNC_DESC_EXTENSION_UNIT                                   = 0x0C , ///< Extension Unit Functional Descriptor
+  CDC_FUNC_DESC_MULTICHANEL_MANAGEMENT                           = 0x0D , ///< Multi-Channel Management Functional Descriptor
+  CDC_FUNC_DESC_CAPI_CONTROL_MANAGEMENT                          = 0x0E , ///< CAPI Control Management Functional Descriptor
+  CDC_FUNC_DESC_ETHERNET_NETWORKING                              = 0x0F , ///< Ethernet Networking Functional Descriptor
+  CDC_FUNC_DESC_ATM_NETWORKING                                   = 0x10 , ///< ATM Networking Functional Descriptor
+  CDC_FUNC_DESC_WIRELESS_HANDSET_CONTROL_MODEL                   = 0x11 , ///< Wireless Handset Control Model Functional Descriptor
+  CDC_FUNC_DESC_MOBILE_DIRECT_LINE_MODEL                         = 0x12 , ///< Mobile Direct Line Model Functional Descriptor
+  CDC_FUNC_DESC_MOBILE_DIRECT_LINE_MODEL_DETAIL                  = 0x13 , ///< MDLM Detail Functional Descriptor
+  CDC_FUNC_DESC_DEVICE_MANAGEMENT_MODEL                          = 0x14 , ///< Device Management Model Functional Descriptor
+  CDC_FUNC_DESC_OBEX                                             = 0x15 , ///< OBEX Functional Descriptor
+  CDC_FUNC_DESC_COMMAND_SET                                      = 0x16 , ///< Command Set Functional Descriptor
+  CDC_FUNC_DESC_COMMAND_SET_DETAIL                               = 0x17 , ///< Command Set Detail Functional Descriptor
+  CDC_FUNC_DESC_TELEPHONE_CONTROL_MODEL                          = 0x18 , ///< Telephone Control Model Functional Descriptor
+  CDC_FUNC_DESC_OBEX_SERVICE_IDENTIFIER                          = 0x19   ///< OBEX Service Identifier Functional Descriptor
+}cdc_func_desc_type_t;
+
+//--------------------------------------------------------------------+
+// CDC DATA INTERFACE CLASS
+//--------------------------------------------------------------------+
+
+// SUBCLASS code of Data Interface is not used and should/must be zero
+/// Data Interface Protocol Codes
+typedef enum{
+  CDC_DATA_PROTOCOL_ISDN_BRI                               = 0x30, ///< Physical interface protocol for ISDN BRI
+  CDC_DATA_PROTOCOL_HDLC                                   = 0x31, ///< HDLC
+  CDC_DATA_PROTOCOL_TRANSPARENT                            = 0x32, ///< Transparent
+  CDC_DATA_PROTOCOL_Q921_MANAGEMENT                        = 0x50, ///< Management protocol for Q.921 data link protocol
+  CDC_DATA_PROTOCOL_Q921_DATA_LINK                         = 0x51, ///< Data link protocol for Q.931
+  CDC_DATA_PROTOCOL_Q921_TEI_MULTIPLEXOR                   = 0x52, ///< TEI-multiplexor for Q.921 data link protocol
+  CDC_DATA_PROTOCOL_V42BIS_DATA_COMPRESSION                = 0x90, ///< Data compression procedures
+  CDC_DATA_PROTOCOL_EURO_ISDN                              = 0x91, ///< Euro-ISDN protocol control
+  CDC_DATA_PROTOCOL_V24_RATE_ADAPTION_TO_ISDN              = 0x92, ///< V.24 rate adaptation to ISDN
+  CDC_DATA_PROTOCOL_CAPI_COMMAND                           = 0x93, ///< CAPI Commands
+  CDC_DATA_PROTOCOL_HOST_BASED_DRIVER                      = 0xFD, ///< Host based driver. Note: This protocol code should only be used in messages between host and device to identify the host driver portion of a protocol stack.
+  CDC_DATA_PROTOCOL_IN_PROTOCOL_UNIT_FUNCTIONAL_DESCRIPTOR = 0xFE  ///< The protocol(s) are described using a ProtocolUnit Functional Descriptors on Communications Class Interface
+}cdc_data_protocol_type_t;
+
+//--------------------------------------------------------------------+
+// MANAGEMENT ELEMENT REQUEST (CONTROL ENDPOINT)
+//--------------------------------------------------------------------+
+/// Communication Interface Management Element Request Codes
+typedef enum
+{
+  CDC_REQUEST_SEND_ENCAPSULATED_COMMAND                    = 0x00, ///< is used to issue a command in the format of the supported control protocol of the Communications Class interface
+  CDC_REQUEST_GET_ENCAPSULATED_RESPONSE                    = 0x01, ///< is used to request a response in the format of the supported control protocol of the Communications Class interface.
+
+  CDC_REQUEST_SET_COMM_FEATURE                             = 0x02,
+  CDC_REQUEST_GET_COMM_FEATURE                             = 0x03,
+  CDC_REQUEST_CLEAR_COMM_FEATURE                           = 0x04,
+
+  CDC_REQUEST_SET_AUX_LINE_STATE                           = 0x10,
+  CDC_REQUEST_SET_HOOK_STATE                               = 0x11,
+  CDC_REQUEST_PULSE_SETUP                                  = 0x12,
+  CDC_REQUEST_SEND_PULSE                                   = 0x13,
+  CDC_REQUEST_SET_PULSE_TIME                               = 0x14,
+  CDC_REQUEST_RING_AUX_JACK                                = 0x15,
+
+  CDC_REQUEST_SET_LINE_CODING                              = 0x20,
+  CDC_REQUEST_GET_LINE_CODING                              = 0x21,
+  CDC_REQUEST_SET_CONTROL_LINE_STATE                       = 0x22,
+  CDC_REQUEST_SEND_BREAK                                   = 0x23,
+
+  CDC_REQUEST_SET_RINGER_PARMS                             = 0x30,
+  CDC_REQUEST_GET_RINGER_PARMS                             = 0x31,
+  CDC_REQUEST_SET_OPERATION_PARMS                          = 0x32,
+  CDC_REQUEST_GET_OPERATION_PARMS                          = 0x33,
+  CDC_REQUEST_SET_LINE_PARMS                               = 0x34,
+  CDC_REQUEST_GET_LINE_PARMS                               = 0x35,
+  CDC_REQUEST_DIAL_DIGITS                                  = 0x36,
+  CDC_REQUEST_SET_UNIT_PARAMETER                           = 0x37,
+  CDC_REQUEST_GET_UNIT_PARAMETER                           = 0x38,
+  CDC_REQUEST_CLEAR_UNIT_PARAMETER                         = 0x39,
+  CDC_REQUEST_GET_PROFILE                                  = 0x3A,
+
+  CDC_REQUEST_SET_ETHERNET_MULTICAST_FILTERS               = 0x40,
+  CDC_REQUEST_SET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER = 0x41,
+  CDC_REQUEST_GET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER = 0x42,
+  CDC_REQUEST_SET_ETHERNET_PACKET_FILTER                   = 0x43,
+  CDC_REQUEST_GET_ETHERNET_STATISTIC                       = 0x44,
+
+  CDC_REQUEST_SET_ATM_DATA_FORMAT                          = 0x50,
+  CDC_REQUEST_GET_ATM_DEVICE_STATISTICS                    = 0x51,
+  CDC_REQUEST_SET_ATM_DEFAULT_VC                           = 0x52,
+  CDC_REQUEST_GET_ATM_VC_STATISTICS                        = 0x53,
+
+  CDC_REQUEST_MDLM_SEMANTIC_MODEL                          = 0x60,
+}cdc_management_request_t;
+
+//--------------------------------------------------------------------+
+// MANAGEMENT ELEMENENT NOTIFICATION (NOTIFICATION ENDPOINT)
+//--------------------------------------------------------------------+
+/// Communication Interface Management Element Notification Codes
+typedef enum
+{
+  NETWORK_CONNECTION               = 0x00, ///< This notification allows the device to notify the host about network connection status.
+  RESPONSE_AVAILABLE               = 0x01, ///< This notification allows the device to notify the hostthat a response is available. This response can be retrieved with a subsequent \ref CDC_REQUEST_GET_ENCAPSULATED_RESPONSE request.
+
+  AUX_JACK_HOOK_STATE              = 0x08,
+  RING_DETECT                      = 0x09,
+
+  SERIAL_STATE                     = 0x20,
+
+  CALL_STATE_CHANGE                = 0x28,
+  LINE_STATE_CHANGE                = 0x29,
+  CONNECTION_SPEED_CHANGE          = 0x2A, ///< This notification allows the device to inform the host-networking driver that a change in either the upstream or the downstream bit rate of the connection has occurred
+  MDLM_SEMANTIC_MODEL_NOTIFICATION = 0x40,
+}cdc_notification_request_t;
+
+//--------------------------------------------------------------------+
+// FUNCTIONAL DESCRIPTOR (COMMUNICATION INTERFACE)
+//--------------------------------------------------------------------+
+/// Header Functional Descriptor (Communication Interface)
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength            ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType    ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  uint16_t bcdCDC            ; ///< CDC release number in Binary-Coded Decimal
+}cdc_desc_func_header_t;
+
+/// Union Functional Descriptor (Communication Interface)
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength                  ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType          ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType       ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  uint8_t bControlInterface        ; ///< Interface number of Communication Interface
+  uint8_t bSubordinateInterface    ; ///< Array of Interface number of Data Interface
+}cdc_desc_func_union_t;
+
+#define cdc_desc_func_union_n_t(no_slave)\
+ struct ATTR_PACKED { \
+  uint8_t bLength                         ;\
+  uint8_t bDescriptorType                 ;\
+  uint8_t bDescriptorSubType              ;\
+  uint8_t bControlInterface               ;\
+  uint8_t bSubordinateInterface[no_slave] ;\
+}
+
+/// Country Selection Functional Descriptor (Communication Interface)
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength             ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType     ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType  ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  uint8_t iCountryCodeRelDate ; ///< Index of a string giving the release date for the implemented ISO 3166 Country Codes.
+  uint16_t wCountryCode[]     ; ///< Country code in the format as defined in [ISO3166], release date as specified inoffset 3 for the first supported country.
+}cdc_desc_func_country_selection_t;
+
+#define cdc_desc_func_country_selection_n_t(no_country) \
+  struct ATTR_PACKED {\
+  uint8_t bLength                   ;\
+  uint8_t bDescriptorType           ;\
+  uint8_t bDescriptorSubType        ;\
+  uint8_t iCountryCodeRelDate       ;\
+  uint16_t wCountryCode[no_country] ;\
+}
+
+//--------------------------------------------------------------------+
+// PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) SUBCLASS
+//--------------------------------------------------------------------+
+
+/// \brief Call Management Functional Descriptor
+/// \details This functional descriptor describes the processing of calls for the Communications Class interface.
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength            ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType    ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+
+  struct {
+    uint8_t handle_call    : 1; ///< 0 - Device sends/receives call management information only over the Communications Class interface. 1 - Device can send/receive call management information over a Data Class interface.
+    uint8_t send_recv_call : 1; ///< 0 - Device does not handle call management itself. 1 - Device handles call management itself.
+    uint8_t : 0;
+  } bmCapabilities;
+
+  uint8_t bDataInterface;
+}cdc_desc_func_call_management_t;
+
+
+typedef struct ATTR_PACKED
+{
+  uint8_t support_comm_request                    : 1; ///< Device supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature.
+  uint8_t support_line_request                    : 1; ///< Device supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State.
+  uint8_t support_send_break                      : 1; ///< Device supports the request Send_Break
+  uint8_t support_notification_network_connection : 1; ///< Device supports the notification Network_Connection.
+  uint8_t : 0;
+}cdc_acm_capability_t;
+
+TU_VERIFY_STATIC(sizeof(cdc_acm_capability_t) == 1, "mostly problem with compiler");
+
+/// \brief Abstract Control Management Functional Descriptor
+/// \details This functional descriptor describes the commands supported by by the Communications Class interface with SubClass code of \ref CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength                  ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType          ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType       ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  cdc_acm_capability_t bmCapabilities ;
+}cdc_desc_func_acm_t;
+
+/// \brief Direct Line Management Functional Descriptor
+/// \details This functional descriptor describes the commands supported by the Communications Class interface with SubClass code of \ref CDC_FUNC_DESC_DIRECT_LINE_MANAGEMENT
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength            ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType    ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  struct {
+    uint8_t require_pulse_setup   : 1; ///< Device requires extra Pulse_Setup request during pulse dialing sequence to disengage holding circuit.
+    uint8_t support_aux_request   : 1; ///< Device supports the request combination of Set_Aux_Line_State, Ring_Aux_Jack, and notification Aux_Jack_Hook_State.
+    uint8_t support_pulse_request : 1; ///< Device supports the request combination of Pulse_Setup, Send_Pulse, and Set_Pulse_Time.
+    uint8_t : 0;
+  } bmCapabilities;
+}cdc_desc_func_direct_line_management_t;
+
+/// \brief Telephone Ringer Functional Descriptor
+/// \details The Telephone Ringer functional descriptor describes the ringer capabilities supported by the Communications Class interface,
+/// with the SubClass code of \ref CDC_COMM_SUBCLASS_TELEPHONE_CONTROL_MODEL
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength            ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType    ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  uint8_t bRingerVolSteps    ;
+  uint8_t bNumRingerPatterns ;
+}cdc_desc_func_telephone_ringer_t;
+
+/// \brief Telephone Operational Modes Functional Descriptor
+/// \details The Telephone Operational Modes functional descriptor describes the operational modes supported by
+/// the Communications Class interface, with the SubClass code of \ref CDC_COMM_SUBCLASS_TELEPHONE_CONTROL_MODEL
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength            ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType    ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  struct {
+    uint8_t simple_mode           : 1;
+    uint8_t standalone_mode       : 1;
+    uint8_t computer_centric_mode : 1;
+    uint8_t : 0;
+  } bmCapabilities;
+}cdc_desc_func_telephone_operational_modes_t;
+
+/// \brief Telephone Call and Line State Reporting Capabilities Descriptor
+/// \details The Telephone Call and Line State Reporting Capabilities functional descriptor describes the abilities of a
+/// telephone device to report optional call and line states.
+typedef struct ATTR_PACKED
+{
+  uint8_t bLength            ; ///< Size of this descriptor in bytes.
+  uint8_t bDescriptorType    ; ///< Descriptor Type, must be Class-Specific
+  uint8_t bDescriptorSubType ; ///< Descriptor SubType one of above CDC_FUCN_DESC_
+  struct {
+    uint32_t interrupted_dialtone   : 1; ///< 0 : Reports only dialtone (does not differentiate between normal and interrupted dialtone). 1 : Reports interrupted dialtone in addition to normal dialtone
+    uint32_t ringback_busy_fastbusy : 1; ///< 0 : Reports only dialing state. 1 : Reports ringback, busy, and fast busy states.
+    uint32_t caller_id              : 1; ///< 0 : Does not report caller ID. 1 : Reports caller ID information.
+    uint32_t incoming_distinctive   : 1; ///< 0 : Reports only incoming ringing. 1 : Reports incoming distinctive ringing patterns.
+    uint32_t dual_tone_multi_freq   : 1; ///< 0 : Cannot report dual tone multi-frequency (DTMF) digits input remotely over the telephone line. 1 : Can report DTMF digits input remotely over the telephone line.
+    uint32_t line_state_change      : 1; ///< 0 : Does not support line state change notification. 1 : Does support line state change notification
+    uint32_t : 0;
+  } bmCapabilities;
+}cdc_desc_func_telephone_call_state_reporting_capabilities_t;
+
+static inline uint8_t cdc_functional_desc_typeof(uint8_t const * p_desc)
+{
+  return p_desc[2];
+}
+
+//--------------------------------------------------------------------+
+// Requests
+//--------------------------------------------------------------------+
+typedef struct ATTR_PACKED
+{
+  uint32_t bit_rate;
+  uint8_t  stop_bits; ///< 0: 1 stop bit - 1: 1.5 stop bits - 2: 2 stop bits
+  uint8_t  parity;    ///< 0: None - 1: Odd - 2: Even - 3: Mark - 4: Space
+  uint8_t  data_bits; ///< can be 5, 6, 7, 8 or 16
+} cdc_line_coding_t;
+
+TU_VERIFY_STATIC(sizeof(cdc_line_coding_t) == 7, "size is not correct");
+
+typedef struct ATTR_PACKED
+{
+  uint16_t dte_is_present : 1; ///< Indicates to DCE if DTE is presentor not. This signal corresponds to V.24 signal 108/2 and RS-232 signal DTR.
+  uint16_t half_duplex_carrier_control : 1;
+  uint16_t : 14;
+} cdc_line_control_state_t;
+
+TU_VERIFY_STATIC(sizeof(cdc_line_control_state_t) == 2, "size is not correct");
+
+/** @} */
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif
+
+/** @} */
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c
new file mode 100644
index 000000000..7ec7a1eb2
--- /dev/null
+++ b/src/class/cdc/cdc_device.c
@@ -0,0 +1,395 @@
+/**************************************************************************/
+/*!
+    @file     cdc_device.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_CDC)
+
+#define _TINY_USB_SOURCE_FILE_
+
+#include "cdc_device.h"
+#include "device/usbd_pvt.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+typedef struct
+{
+  uint8_t itf_num;
+  uint8_t ep_notif;
+  uint8_t ep_in;
+  uint8_t ep_out;
+
+  // Bit 0:  DTR (Data Terminal Ready), Bit 1: RTS (Request to Send)
+  uint8_t line_state;
+
+  /*------------- From this point, data is not cleared by bus reset -------------*/
+  char    wanted_char;
+  cdc_line_coding_t line_coding;
+
+  // FIFO
+  tu_fifo_t rx_ff;
+  tu_fifo_t tx_ff;
+
+  uint8_t rx_ff_buf[CFG_TUD_CDC_RX_BUFSIZE];
+  uint8_t tx_ff_buf[CFG_TUD_CDC_TX_BUFSIZE];
+
+#if CFG_FIFO_MUTEX
+  osal_mutex_def_t rx_ff_mutex;
+  osal_mutex_def_t tx_ff_mutex;
+#endif
+
+  // Endpoint Transfer buffer
+  CFG_TUSB_MEM_ALIGN uint8_t epout_buf[CFG_TUD_CDC_EPSIZE];
+  CFG_TUSB_MEM_ALIGN uint8_t epin_buf[CFG_TUD_CDC_EPSIZE];
+
+}cdcd_interface_t;
+
+#define ITF_MEM_RESET_SIZE   offsetof(cdcd_interface_t, wanted_char)
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+CFG_TUSB_MEM_SECTION static cdcd_interface_t _cdcd_itf[CFG_TUD_CDC];
+
+//--------------------------------------------------------------------+
+// APPLICATION API
+//--------------------------------------------------------------------+
+bool tud_cdc_n_connected(uint8_t itf)
+{
+  // DTR (bit 0) active  is considered as connected
+  return BIT_TEST_(_cdcd_itf[itf].line_state, 0);
+}
+
+uint8_t tud_cdc_n_get_line_state (uint8_t itf)
+{
+  return _cdcd_itf[itf].line_state;
+}
+
+void tud_cdc_n_get_line_coding (uint8_t itf, cdc_line_coding_t* coding)
+{
+  (*coding) = _cdcd_itf[itf].line_coding;
+}
+
+void tud_cdc_n_set_wanted_char (uint8_t itf, char wanted)
+{
+  _cdcd_itf[itf].wanted_char = wanted;
+}
+
+
+//--------------------------------------------------------------------+
+// READ API
+//--------------------------------------------------------------------+
+uint32_t tud_cdc_n_available(uint8_t itf)
+{
+  return tu_fifo_count(&_cdcd_itf[itf].rx_ff);
+}
+
+char tud_cdc_n_read_char(uint8_t itf)
+{
+  char ch;
+  return tu_fifo_read(&_cdcd_itf[itf].rx_ff, &ch) ? ch : (-1);
+}
+
+uint32_t tud_cdc_n_read(uint8_t itf, void* buffer, uint32_t bufsize)
+{
+  return tu_fifo_read_n(&_cdcd_itf[itf].rx_ff, buffer, bufsize);
+}
+
+char tud_cdc_n_peek(uint8_t itf, int pos)
+{
+  char ch;
+  return tu_fifo_peek_at(&_cdcd_itf[itf].rx_ff, pos, &ch) ? ch : (-1);
+}
+
+void tud_cdc_n_read_flush (uint8_t itf)
+{
+  tu_fifo_clear(&_cdcd_itf[itf].rx_ff);
+}
+
+//--------------------------------------------------------------------+
+// WRITE API
+//--------------------------------------------------------------------+
+
+uint32_t tud_cdc_n_write_char(uint8_t itf, char ch)
+{
+  return tud_cdc_n_write(itf, &ch, 1);
+}
+
+uint32_t tud_cdc_n_write_str (uint8_t itf, char const* str)
+{
+  return tud_cdc_n_write(itf, str, strlen(str));
+}
+
+uint32_t tud_cdc_n_write(uint8_t itf, void const* buffer, uint32_t bufsize)
+{
+  uint16_t ret = tu_fifo_write_n(&_cdcd_itf[itf].tx_ff, buffer, bufsize);
+
+#if 0 // TODO issue with circuitpython's REPL
+  // flush if queue more than endpoint size
+  if ( tu_fifo_count(&_cdcd_itf[itf].tx_ff) >= CFG_TUD_CDC_EPSIZE )
+  {
+    tud_cdc_n_write_flush(itf);
+  }
+#endif
+
+  return ret;
+}
+
+bool tud_cdc_n_write_flush (uint8_t itf)
+{
+  cdcd_interface_t* p_cdc = &_cdcd_itf[itf];
+  TU_VERIFY( !dcd_edpt_busy(TUD_OPT_RHPORT, p_cdc->ep_in) ); // skip if previous transfer not complete
+
+  uint16_t count = tu_fifo_read_n(&_cdcd_itf[itf].tx_ff, p_cdc->epin_buf, CFG_TUD_CDC_EPSIZE);
+  if ( count )
+  {
+    TU_VERIFY( tud_cdc_n_connected(itf) ); // fifo is empty if not connected
+    TU_ASSERT( dcd_edpt_xfer(TUD_OPT_RHPORT, p_cdc->ep_in, p_cdc->epin_buf, count) );
+  }
+
+  return true;
+}
+
+
+//--------------------------------------------------------------------+
+// USBD Driver API
+//--------------------------------------------------------------------+
+void cdcd_init(void)
+{
+  tu_memclr(_cdcd_itf, sizeof(_cdcd_itf));
+
+  for(uint8_t i=0; i<CFG_TUD_CDC; i++)
+  {
+    cdcd_interface_t* p_cdc = &_cdcd_itf[i];
+
+    p_cdc->wanted_char = -1;
+
+    // default line coding is : stop bit = 1, parity = none, data bits = 8
+    p_cdc->line_coding.bit_rate = 115200;
+    p_cdc->line_coding.stop_bits = 0;
+    p_cdc->line_coding.parity    = 0;
+    p_cdc->line_coding.data_bits = 8;
+
+    // config fifo
+    tu_fifo_config(&p_cdc->rx_ff, p_cdc->rx_ff_buf, CFG_TUD_CDC_RX_BUFSIZE, 1, true);
+    tu_fifo_config(&p_cdc->tx_ff, p_cdc->tx_ff_buf, CFG_TUD_CDC_TX_BUFSIZE, 1, false);
+
+#if CFG_FIFO_MUTEX
+    tu_fifo_config_mutex(&p_cdc->rx_ff, osal_mutex_create(&p_cdc->rx_ff_mutex));
+    tu_fifo_config_mutex(&p_cdc->tx_ff, osal_mutex_create(&p_cdc->tx_ff_mutex));
+#endif
+  }
+}
+
+void cdcd_reset(uint8_t rhport)
+{
+  (void) rhport;
+
+  for(uint8_t i=0; i<CFG_TUD_CDC; i++)
+  {
+    tu_memclr(&_cdcd_itf[i], ITF_MEM_RESET_SIZE);
+    tu_fifo_clear(&_cdcd_itf[i].rx_ff);
+    tu_fifo_clear(&_cdcd_itf[i].tx_ff);
+  }
+}
+
+bool cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length)
+{
+  // Only support ACM subclass
+  TU_ASSERT ( CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass);
+
+  // Only support AT commands, no protocol and vendor specific commands.
+  TU_ASSERT(tu_within(CDC_COMM_PROTOCOL_NONE, itf_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA) ||
+            itf_desc->bInterfaceProtocol == 0xff);
+
+  // Find available interface
+  cdcd_interface_t * p_cdc = NULL;
+  for(uint8_t i=0; i<CFG_TUD_CDC; i++)
+  {
+    if ( _cdcd_itf[i].ep_in == 0 )
+    {
+      p_cdc = &_cdcd_itf[i];
+      break;
+    }
+  }
+  TU_ASSERT(p_cdc);
+
+  //------------- Control Interface -------------//
+  p_cdc->itf_num = itf_desc->bInterfaceNumber;
+
+  uint8_t const * p_desc = tu_desc_next( itf_desc );
+  (*p_length) = sizeof(tusb_desc_interface_t);
+
+  // Communication Functional Descriptors
+  while ( TUSB_DESC_CLASS_SPECIFIC == tu_desc_type(p_desc) )
+  {
+    (*p_length) += tu_desc_len(p_desc);
+    p_desc = tu_desc_next(p_desc);
+  }
+
+  if ( TUSB_DESC_ENDPOINT == tu_desc_type(p_desc) )
+  {
+    // notification endpoint if any
+    TU_ASSERT( dcd_edpt_open(rhport, (tusb_desc_endpoint_t const *) p_desc) );
+
+    p_cdc->ep_notif = ((tusb_desc_endpoint_t const *) p_desc)->bEndpointAddress;
+
+    (*p_length) += p_desc[DESC_OFFSET_LEN];
+    p_desc = tu_desc_next(p_desc);
+  }
+
+  //------------- Data Interface (if any) -------------//
+  if ( (TUSB_DESC_INTERFACE == p_desc[DESC_OFFSET_TYPE]) &&
+       (TUSB_CLASS_CDC_DATA == ((tusb_desc_interface_t const *) p_desc)->bInterfaceClass) )
+  {
+    // next to endpoint descriptor
+    (*p_length) += tu_desc_len(p_desc);
+    p_desc = tu_desc_next(p_desc);
+
+    // Open endpoint pair with usbd helper
+    tusb_desc_endpoint_t const *p_desc_ep = (tusb_desc_endpoint_t const *) p_desc;
+    TU_ASSERT( usbd_open_edpt_pair(rhport, p_desc_ep, TUSB_XFER_BULK, &p_cdc->ep_out, &p_cdc->ep_in) );
+
+    (*p_length) += 2*sizeof(tusb_desc_endpoint_t);
+  }
+
+  // Prepare for incoming data
+  TU_ASSERT( dcd_edpt_xfer(rhport, p_cdc->ep_out, p_cdc->epout_buf, CFG_TUD_CDC_EPSIZE) );
+
+  return true;
+}
+
+// Invoked when class request DATA stage is finished.
+// return false to stall control endpoint (e.g Host send non-sense DATA)
+bool cdcd_control_request_complete(uint8_t rhport, tusb_control_request_t const * request)
+{
+  (void) rhport;
+
+  //------------- Class Specific Request -------------//
+  TU_VERIFY (request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS);
+
+  // TODO Support multiple interfaces
+  uint8_t const itf = 0;
+  cdcd_interface_t* p_cdc = &_cdcd_itf[itf];
+
+  // Invoke callback
+  if ( CDC_REQUEST_SET_LINE_CODING == request->bRequest )
+  {
+    if ( tud_cdc_line_coding_cb ) tud_cdc_line_coding_cb(itf, &p_cdc->line_coding);
+  }
+
+  return true;
+}
+
+// Handle class control request
+// return false to stall control endpoint (e.g unsupported request)
+bool cdcd_control_request(uint8_t rhport, tusb_control_request_t const * request)
+{
+  //------------- Class Specific Request -------------//
+  TU_ASSERT(request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS);
+
+  // TODO Support multiple interfaces
+  uint8_t const itf = 0;
+  cdcd_interface_t* p_cdc = &_cdcd_itf[itf];
+
+  switch ( request->bRequest )
+  {
+    case CDC_REQUEST_SET_LINE_CODING:
+      usbd_control_xfer(rhport, request, &p_cdc->line_coding, sizeof(cdc_line_coding_t));
+    break;
+
+    case CDC_REQUEST_GET_LINE_CODING:
+      usbd_control_xfer(rhport, request, &p_cdc->line_coding, sizeof(cdc_line_coding_t));
+    break;
+
+    case CDC_REQUEST_SET_CONTROL_LINE_STATE:
+      // CDC PSTN v1.2 section 6.3.12
+      // Bit 0: Indicates if DTE is present or not.
+      //        This signal corresponds to V.24 signal 108/2 and RS-232 signal DTR (Data Terminal Ready)
+      // Bit 1: Carrier control for half-duplex modems.
+      //        This signal corresponds to V.24 signal 105 and RS-232 signal RTS (Request to Send)
+      p_cdc->line_state = (uint8_t) request->wValue;
+
+      usbd_control_status(rhport, request);
+
+      // Invoke callback
+      if ( tud_cdc_line_state_cb) tud_cdc_line_state_cb(itf, BIT_TEST_(request->wValue, 0), BIT_TEST_(request->wValue, 1));
+    break;
+
+    default: return false; // stall unsupported request
+  }
+
+  return true;
+}
+
+bool cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)
+{
+  (void) result;
+
+  // TODO Support multiple interfaces
+  uint8_t const itf = 0;
+  cdcd_interface_t* p_cdc = &_cdcd_itf[itf];
+
+  // receive new data
+  if ( ep_addr == p_cdc->ep_out )
+  {
+    for(uint32_t i=0; i<xferred_bytes; i++)
+    {
+      tu_fifo_write(&p_cdc->rx_ff, &p_cdc->epout_buf[i]);
+
+      // Check for wanted char and invoke callback if needed
+      if ( tud_cdc_rx_wanted_cb && ( ((signed char) p_cdc->wanted_char) != -1 ) && ( p_cdc->wanted_char == p_cdc->epout_buf[i] ) )
+      {
+        tud_cdc_rx_wanted_cb(itf, p_cdc->wanted_char);
+      }
+    }
+
+    // invoke receive callback (if there is still data)
+    if (tud_cdc_rx_cb && tu_fifo_count(&p_cdc->rx_ff) ) tud_cdc_rx_cb(itf);
+
+    // prepare for incoming data
+    TU_ASSERT( dcd_edpt_xfer(rhport, p_cdc->ep_out, p_cdc->epout_buf, CFG_TUD_CDC_EPSIZE) );
+  }
+
+  // nothing to do with in and notif endpoint
+
+  return true;
+}
+
+#endif
diff --git a/src/class/cdc/cdc_device.h b/src/class/cdc/cdc_device.h
new file mode 100644
index 000000000..5ee649c4b
--- /dev/null
+++ b/src/class/cdc/cdc_device.h
@@ -0,0 +1,131 @@
+/**************************************************************************/
+/*!
+    @file     cdc_device.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#ifndef _TUSB_CDC_DEVICE_H_
+#define _TUSB_CDC_DEVICE_H_
+
+#include "common/tusb_common.h"
+#include "device/usbd.h"
+#include "cdc.h"
+
+//--------------------------------------------------------------------+
+// Class Driver Configuration
+//--------------------------------------------------------------------+
+#ifndef CFG_TUD_CDC_EPSIZE
+#define CFG_TUD_CDC_EPSIZE 64
+#endif
+
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/** \addtogroup CDC_Serial Serial
+ *  @{
+ *  \defgroup   CDC_Serial_Device Device
+ *  @{ */
+
+//--------------------------------------------------------------------+
+// APPLICATION API (Multiple Interfaces)
+// CFG_TUD_CDC > 1
+//--------------------------------------------------------------------+
+bool     tud_cdc_n_connected       (uint8_t itf);
+uint8_t  tud_cdc_n_get_line_state  (uint8_t itf);
+void     tud_cdc_n_get_line_coding (uint8_t itf, cdc_line_coding_t* coding);
+void     tud_cdc_n_set_wanted_char (uint8_t itf, char wanted);
+
+uint32_t tud_cdc_n_available       (uint8_t itf);
+char     tud_cdc_n_read_char       (uint8_t itf);
+uint32_t tud_cdc_n_read            (uint8_t itf, void* buffer, uint32_t bufsize);
+void     tud_cdc_n_read_flush      (uint8_t itf);
+char     tud_cdc_n_peek            (uint8_t itf, int pos);
+
+uint32_t tud_cdc_n_write_char      (uint8_t itf, char ch);
+uint32_t tud_cdc_n_write           (uint8_t itf, void const* buffer, uint32_t bufsize);
+uint32_t tud_cdc_n_write_str       (uint8_t itf, char const* str);
+bool     tud_cdc_n_write_flush     (uint8_t itf);
+
+//--------------------------------------------------------------------+
+// APPLICATION API (Interface0)
+//--------------------------------------------------------------------+
+static inline bool     tud_cdc_connected       (void)                                 { return tud_cdc_n_connected(0);              }
+static inline uint8_t  tud_cdc_get_line_state  (void)                                 { return tud_cdc_n_get_line_state(0);         }
+static inline void     tud_cdc_get_line_coding (cdc_line_coding_t* coding)            { return tud_cdc_n_get_line_coding(0, coding);}
+static inline void     tud_cdc_set_wanted_char (char wanted)                          { tud_cdc_n_set_wanted_char(0, wanted);       }
+
+static inline uint32_t tud_cdc_available       (void)                                 { return tud_cdc_n_available(0);              }
+static inline char     tud_cdc_read_char       (void)                                 { return tud_cdc_n_read_char(0);              }
+static inline uint32_t tud_cdc_read            (void* buffer, uint32_t bufsize)       { return tud_cdc_n_read(0, buffer, bufsize);  }
+static inline void     tud_cdc_read_flush      (void)                                 { tud_cdc_n_read_flush(0);                    }
+static inline char     tud_cdc_peek            (int pos)                              { return tud_cdc_n_peek(0, pos);              }
+
+static inline uint32_t tud_cdc_write_char      (char ch)                              { return tud_cdc_n_write_char(0, ch);         }
+static inline uint32_t tud_cdc_write           (void const* buffer, uint32_t bufsize) { return tud_cdc_n_write(0, buffer, bufsize); }
+static inline uint32_t tud_cdc_write_str       (char const* str)                      { return tud_cdc_n_write_str(0, str);         }
+static inline bool     tud_cdc_write_flush     (void)                                 { return tud_cdc_n_write_flush(0);            }
+
+//--------------------------------------------------------------------+
+// APPLICATION CALLBACK API (WEAK is optional)
+//--------------------------------------------------------------------+
+ATTR_WEAK void tud_cdc_rx_cb(uint8_t itf);
+ATTR_WEAK void tud_cdc_rx_wanted_cb(uint8_t itf, char wanted_char);
+ATTR_WEAK void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts);
+ATTR_WEAK void tud_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* p_line_coding);
+
+//--------------------------------------------------------------------+
+// USBD-CLASS DRIVER API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+void cdcd_init               (void);
+bool cdcd_open               (uint8_t rhport, tusb_desc_interface_t const * p_interface_desc, uint16_t *p_length);
+bool cdcd_control_request (uint8_t rhport, tusb_control_request_t const * p_request);
+bool cdcd_control_request_complete (uint8_t rhport, tusb_control_request_t const * p_request);
+bool cdcd_xfer_cb            (uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
+void cdcd_reset              (uint8_t rhport);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CDC_DEVICE_H_ */
+
+/** @} */
+/** @} */
diff --git a/src/class/cdc/cdc_host.c b/src/class/cdc/cdc_host.c
new file mode 100644
index 000000000..d6767d0a7
--- /dev/null
+++ b/src/class/cdc/cdc_host.c
@@ -0,0 +1,239 @@
+/**************************************************************************/
+/*!
+    @file     cdc_host.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_HOST_ENABLED && CFG_TUH_CDC)
+
+#define _TINY_USB_SOURCE_FILE_
+
+#include "common/tusb_common.h"
+#include "cdc_host.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+typedef struct {
+  uint8_t itf_num;
+  uint8_t itf_protocol;
+
+  uint8_t ep_notif;
+  uint8_t ep_in;
+  uint8_t ep_out;
+
+  cdc_acm_capability_t acm_capability;
+
+} cdch_data_t;
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+static cdch_data_t cdch_data[CFG_TUSB_HOST_DEVICE_MAX];
+
+bool tuh_cdc_mounted(uint8_t dev_addr)
+{
+  cdch_data_t* cdc = &cdch_data[dev_addr-1];
+  return cdc->ep_in && cdc->ep_out;
+}
+
+bool tuh_cdc_is_busy(uint8_t dev_addr, cdc_pipeid_t pipeid)
+{
+  if ( !tuh_cdc_mounted(dev_addr) ) return false;
+
+  cdch_data_t const * p_cdc = &cdch_data[dev_addr-1];
+
+  switch (pipeid)
+  {
+    case CDC_PIPE_NOTIFICATION:
+      return hcd_edpt_busy(dev_addr, p_cdc->ep_notif );
+
+    case CDC_PIPE_DATA_IN:
+      return hcd_edpt_busy(dev_addr, p_cdc->ep_in );
+
+    case CDC_PIPE_DATA_OUT:
+      return hcd_edpt_busy(dev_addr, p_cdc->ep_out );
+
+    default:
+      return false;
+  }
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION API (parameter validation needed)
+//--------------------------------------------------------------------+
+bool tuh_cdc_serial_is_mounted(uint8_t dev_addr)
+{
+  // TODO consider all AT Command as serial candidate
+  return tuh_cdc_mounted(dev_addr)                                         &&
+      (CDC_COMM_PROTOCOL_ATCOMMAND <= cdch_data[dev_addr-1].itf_protocol) &&
+      (cdch_data[dev_addr-1].itf_protocol <= CDC_COMM_PROTOCOL_ATCOMMAND_CDMA);
+}
+
+bool tuh_cdc_send(uint8_t dev_addr, void const * p_data, uint32_t length, bool is_notify)
+{
+  TU_VERIFY( tuh_cdc_mounted(dev_addr) );
+  TU_VERIFY( p_data != NULL && length, TUSB_ERROR_INVALID_PARA);
+
+  uint8_t const ep_out = cdch_data[dev_addr-1].ep_out;
+  if ( hcd_edpt_busy(dev_addr, ep_out) ) return false;
+
+  return hcd_pipe_xfer(dev_addr, ep_out, (void *) p_data, length, is_notify);
+}
+
+bool tuh_cdc_receive(uint8_t dev_addr, void * p_buffer, uint32_t length, bool is_notify)
+{
+  TU_VERIFY( tuh_cdc_mounted(dev_addr) );
+  TU_VERIFY( p_buffer != NULL && length, TUSB_ERROR_INVALID_PARA);
+
+  uint8_t const ep_in = cdch_data[dev_addr-1].ep_in;
+  if ( hcd_edpt_busy(dev_addr, ep_in) ) return false;
+
+  return hcd_pipe_xfer(dev_addr, ep_in, p_buffer, length, is_notify);
+}
+
+//--------------------------------------------------------------------+
+// USBH-CLASS DRIVER API
+//--------------------------------------------------------------------+
+void cdch_init(void)
+{
+  tu_memclr(cdch_data, sizeof(cdch_data_t)*CFG_TUSB_HOST_DEVICE_MAX);
+}
+
+bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)
+{
+  // Only support ACM
+  TU_VERIFY( CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass);
+
+  // Only support AT commands, no protocol and vendor specific commands.
+  TU_VERIFY(tu_within(CDC_COMM_PROTOCOL_NONE, itf_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA) ||
+            0xff == itf_desc->bInterfaceProtocol);
+
+  uint8_t const * p_desc;
+  cdch_data_t * p_cdc;
+
+  p_desc = tu_desc_next(itf_desc);
+  p_cdc  = &cdch_data[dev_addr-1];
+
+  p_cdc->itf_num   = itf_desc->bInterfaceNumber;
+  p_cdc->itf_protocol = itf_desc->bInterfaceProtocol; // TODO 0xff is consider as rndis candidate, other is virtual Com
+
+  //------------- Communication Interface -------------//
+  (*p_length) = sizeof(tusb_desc_interface_t);
+
+  // Communication Functional Descriptors
+  while( TUSB_DESC_CLASS_SPECIFIC == p_desc[DESC_OFFSET_TYPE] )
+  {
+    if ( CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT == cdc_functional_desc_typeof(p_desc) )
+    {
+      // save ACM bmCapabilities
+      p_cdc->acm_capability = ((cdc_desc_func_acm_t const *) p_desc)->bmCapabilities;
+    }
+
+    (*p_length) += p_desc[DESC_OFFSET_LEN];
+    p_desc = tu_desc_next(p_desc);
+  }
+
+  if ( TUSB_DESC_ENDPOINT == p_desc[DESC_OFFSET_TYPE])
+  {
+    // notification endpoint
+    tusb_desc_endpoint_t const * ep_desc = (tusb_desc_endpoint_t const *) p_desc;
+
+    TU_ASSERT( hcd_edpt_open(rhport, dev_addr, ep_desc) );
+    p_cdc->ep_notif = ep_desc->bEndpointAddress;
+
+    (*p_length) += p_desc[DESC_OFFSET_LEN];
+    p_desc = tu_desc_next(p_desc);
+  }
+
+  //------------- Data Interface (if any) -------------//
+  if ( (TUSB_DESC_INTERFACE == p_desc[DESC_OFFSET_TYPE]) &&
+       (TUSB_CLASS_CDC_DATA == ((tusb_desc_interface_t const *) p_desc)->bInterfaceClass) )
+  {
+    (*p_length) += p_desc[DESC_OFFSET_LEN];
+    p_desc = tu_desc_next(p_desc);
+
+    // data endpoints expected to be in pairs
+    for(uint32_t i=0; i<2; i++)
+    {
+      tusb_desc_endpoint_t const *ep_desc = (tusb_desc_endpoint_t const *) p_desc;
+      TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType);
+      TU_ASSERT(TUSB_XFER_BULK == ep_desc->bmAttributes.xfer);
+
+      TU_ASSERT(hcd_edpt_open(rhport, dev_addr, ep_desc));
+
+      if ( tu_edpt_dir(ep_desc->bEndpointAddress) ==  TUSB_DIR_IN )
+      {
+        p_cdc->ep_in = ep_desc->bEndpointAddress;
+      }else
+      {
+        p_cdc->ep_out = ep_desc->bEndpointAddress;
+      }
+
+      (*p_length) += p_desc[DESC_OFFSET_LEN];
+      p_desc = tu_desc_next( p_desc );
+    }
+  }
+
+  // FIXME move to seperate API : connect
+  tusb_control_request_t request =
+  {
+    .bmRequestType_bit = { .recipient = TUSB_REQ_RCPT_INTERFACE, .type = TUSB_REQ_TYPE_CLASS, .direction = TUSB_DIR_OUT },
+    .bRequest = CDC_REQUEST_SET_CONTROL_LINE_STATE,
+    .wValue = 0x03, // dtr on, cst on
+    .wIndex = p_cdc->itf_num,
+    .wLength = 0
+  };
+
+  TU_ASSERT( usbh_control_xfer(dev_addr, &request, NULL) );
+
+  return true;
+}
+
+void cdch_isr(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
+{
+  (void) ep_addr;
+  tuh_cdc_xfer_isr( dev_addr, event, 0, xferred_bytes );
+}
+
+void cdch_close(uint8_t dev_addr)
+{
+  cdch_data_t * p_cdc = &cdch_data[dev_addr-1];
+  tu_memclr(p_cdc, sizeof(cdch_data_t));
+}
+
+#endif
diff --git a/src/class/cdc/cdc_host.h b/src/class/cdc/cdc_host.h
new file mode 100644
index 000000000..5388a8f60
--- /dev/null
+++ b/src/class/cdc/cdc_host.h
@@ -0,0 +1,140 @@
+/**************************************************************************/
+/*!
+    @file     cdc_host.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+
+#ifndef _TUSB_CDC_HOST_H_
+#define _TUSB_CDC_HOST_H_
+
+#include "common/tusb_common.h"
+#include "host/usbh.h"
+#include "cdc.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// CDC APPLICATION PUBLIC API
+//--------------------------------------------------------------------+
+/** \ingroup ClassDriver_CDC Communication Device Class (CDC)
+ * \addtogroup CDC_Serial Serial
+ * @{
+ * \defgroup   CDC_Serial_Host Host
+ * @{ */
+
+/** \brief 			Check if device support CDC Serial interface or not
+ * \param[in]		dev_addr	device address
+ * \retval      true if device supports
+ * \retval      false if device does not support or is not mounted
+ */
+bool tuh_cdc_serial_is_mounted(uint8_t dev_addr);
+
+/** \brief      Check if the interface is currently busy or not
+ * \param[in]   dev_addr device address
+ * \param[in]   pipeid value from \ref cdc_pipeid_t to indicate target pipe.
+ * \retval      true if the interface is busy, meaning the stack is still transferring/waiting data from/to device
+ * \retval      false if the interface is not busy, meaning the stack successfully transferred data from/to device
+ * \note        This function is used to check if previous transfer is complete (success or error), so that the next transfer
+ *              can be scheduled. User needs to make sure the corresponding interface is mounted
+ *              (by \ref tuh_cdc_serial_is_mounted) before calling this function.
+ */
+bool tuh_cdc_is_busy(uint8_t dev_addr, cdc_pipeid_t pipeid);
+
+/** \brief 			Perform USB OUT transfer to device
+ * \param[in]		dev_addr	device address
+ * \param[in]	  p_data    Buffer containing data. Must be accessible by USB controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \param[in]		length    Number of bytes to be transferred via USB bus
+ * \retval      TUSB_ERROR_NONE on success
+ * \retval      TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval      TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval      TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note        This function is non-blocking and returns immediately. The result of USB transfer will be reported by the
+ *              interface's callback function. \a p_data must be declared with \ref CFG_TUSB_MEM_SECTION.
+ */
+bool tuh_cdc_send(uint8_t dev_addr, void const * p_data, uint32_t length, bool is_notify);
+
+/** \brief 			Perform USB IN transfer to get data from device
+ * \param[in]		dev_addr	device address
+ * \param[in]	  p_buffer  Buffer containing received data. Must be accessible by USB controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \param[in]		length    Number of bytes to be transferred via USB bus
+ * \retval      TUSB_ERROR_NONE on success
+ * \retval      TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval      TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval      TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note        This function is non-blocking and returns immediately. The result of USB transfer will be reported by the
+ *              interface's callback function. \a p_data must be declared with \ref CFG_TUSB_MEM_SECTION.
+ */
+bool tuh_cdc_receive(uint8_t dev_addr, void * p_buffer, uint32_t length, bool is_notify);
+
+//--------------------------------------------------------------------+
+// CDC APPLICATION CALLBACKS
+//--------------------------------------------------------------------+
+
+/** \brief      Callback function that is invoked when an transferring event occurred
+ * \param[in]		dev_addr	Address of device
+ * \param[in]   event an value from \ref xfer_result_t
+ * \param[in]   pipe_id value from \ref cdc_pipeid_t indicate the pipe
+ * \param[in]   xferred_bytes Number of bytes transferred via USB bus
+ * \note        event can be one of following
+ *              - XFER_RESULT_SUCCESS : previously scheduled transfer completes successfully.
+ *              - XFER_RESULT_FAILED   : previously scheduled transfer encountered a transaction error.
+ *              - XFER_RESULT_STALLED : previously scheduled transfer is stalled by device.
+ * \note
+ */
+void tuh_cdc_xfer_isr(uint8_t dev_addr, xfer_result_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes);
+
+/// @} // group CDC_Serial_Host
+/// @}
+
+//--------------------------------------------------------------------+
+// USBH-CLASS API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+void cdch_init(void);
+bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length);
+void cdch_isr(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
+void cdch_close(uint8_t dev_addr);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CDC_HOST_H_ */
diff --git a/src/class/cdc/cdc_rndis.h b/src/class/cdc/cdc_rndis.h
new file mode 100644
index 000000000..20da5660b
--- /dev/null
+++ b/src/class/cdc/cdc_rndis.h
@@ -0,0 +1,313 @@
+/**************************************************************************/
+/*!
+    @file     cdc_rndis.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \ingroup ClassDriver_CDC Communication Device Class (CDC)
+ * \defgroup CDC_RNDIS Remote Network Driver Interface Specification (RNDIS)
+ *  @{
+ *  \defgroup CDC_RNDIS_Common Common Definitions
+ *  @{ */
+
+#ifndef _TUSB_CDC_RNDIS_H_
+#define _TUSB_CDC_RNDIS_H_
+
+#include "cdc.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#ifdef __CC_ARM
+#pragma diag_suppress 66 // Suppress Keil warnings #66-D: enumeration value is out of "int" range
+#endif
+
+/// RNDIS Message Types
+typedef enum
+{
+  RNDIS_MSG_PACKET           = 0x00000001UL, ///< The host and device use this to send network data to one another.
+
+  RNDIS_MSG_INITIALIZE       = 0x00000002UL, ///< Sent by the host to initialize the device.
+  RNDIS_MSG_INITIALIZE_CMPLT = 0x80000002UL, ///< Device response to an initialize message.
+
+  RNDIS_MSG_HALT             = 0x00000003UL, ///< Sent by the host to halt the device. This does not have a response. It is optional for the device to send this message to the host.
+
+  RNDIS_MSG_QUERY            = 0x00000004UL, ///< Sent by the host to send a query OID.
+  RNDIS_MSG_QUERY_CMPLT      = 0x80000004UL, ///< Device response to a query OID.
+
+  RNDIS_MSG_SET              = 0x00000005UL, ///< Sent by the host to send a set OID.
+  RNDIS_MSG_SET_CMPLT        = 0x80000005UL, ///< Device response to a set OID.
+
+  RNDIS_MSG_RESET            = 0x00000006UL, ///< Sent by the host to perform a soft reset on the device.
+  RNDIS_MSG_RESET_CMPLT      = 0x80000006UL, ///< Device response to reset message.
+
+  RNDIS_MSG_INDICATE_STATUS  = 0x00000007UL, ///< Sent by the device to indicate its status or an error when an unrecognized message is received.
+
+  RNDIS_MSG_KEEP_ALIVE       = 0x00000008UL, ///< During idle periods, sent every few seconds by the host to check that the device is still responsive. It is optional for the device to send this message to check if the host is active.
+  RNDIS_MSG_KEEP_ALIVE_CMPLT = 0x80000008UL  ///< The device response to a keepalivemessage. The host can respond with this message to a keepalive message from the device when the device implements the optional KeepAliveTimer.
+}rndis_msg_type_t;
+
+/// RNDIS Message Status Values
+typedef enum
+{
+  RNDIS_STATUS_SUCCESS          = 0x00000000UL, ///< Success
+  RNDIS_STATUS_FAILURE          = 0xC0000001UL, ///< Unspecified error
+  RNDIS_STATUS_INVALID_DATA     = 0xC0010015UL, ///< Invalid data error
+  RNDIS_STATUS_NOT_SUPPORTED    = 0xC00000BBUL, ///< Unsupported request error
+  RNDIS_STATUS_MEDIA_CONNECT    = 0x4001000BUL, ///< Device is connected to a network medium.
+  RNDIS_STATUS_MEDIA_DISCONNECT = 0x4001000CUL  ///< Device is disconnected from the medium.
+}rndis_msg_status_t;
+
+#ifdef __CC_ARM
+#pragma diag_default 66 // return Keil 66 to normal severity
+#endif
+
+//--------------------------------------------------------------------+
+// MESSAGE STRUCTURE
+//--------------------------------------------------------------------+
+
+//------------- Initialize -------------//
+/// \brief Initialize Message
+/// \details This message MUST be sent by the host to initialize the device.
+typedef struct {
+  uint32_t type          ; ///< Message type, must be \ref RNDIS_MSG_INITIALIZE
+  uint32_t length        ; ///< Message length in bytes, must be 0x18
+  uint32_t request_id    ; ///< A 32-bit integer value, generated by the host, used to match the host's sent request to the response from the device.
+  uint32_t major_version ; ///< The major version of the RNDIS Protocol implemented by the host.
+  uint32_t minor_version ; ///< The minor version of the RNDIS Protocol implemented by the host
+  uint32_t max_xfer_size ; ///< The maximum size, in bytes, of any single bus data transfer that the host expects to receive from the device.
+}rndis_msg_initialize_t;
+
+/// \brief Initialize Complete Message
+/// \details This message MUST be sent by the device in response to an initialize message.
+typedef struct {
+  uint32_t type                    ; ///< Message Type, must be \ref RNDIS_MSG_INITIALIZE_CMPLT
+  uint32_t length                  ; ///< Message length in bytes, must be 0x30
+  uint32_t request_id              ; ///< A 32-bit integer value from \a request_id field of the \ref rndis_msg_initialize_t to which this message is a response.
+  uint32_t status                  ; ///< The initialization status of the device, has value from \ref rndis_msg_status_t
+  uint32_t major_version           ; ///< the highest-numbered RNDIS Protocol version supported by the device.
+  uint32_t minor_version           ; ///< the highest-numbered RNDIS Protocol version supported by the device.
+  uint32_t device_flags            ; ///< MUST be set to 0x000000010. Other values are reserved for future use.
+  uint32_t medium                  ; ///< is 0x00 for RNDIS_MEDIUM_802_3
+  uint32_t max_packet_per_xfer     ; ///< The maximum number of concatenated \ref RNDIS_MSG_PACKET messages that the device can handle in a single bus transfer to it. This value MUST be at least 1.
+  uint32_t max_xfer_size           ; ///< The maximum size, in bytes, of any single bus data transfer that the device expects to receive from the host.
+  uint32_t packet_alignment_factor ; ///< The byte alignment the device expects for each RNDIS message that is part of a multimessage transfer to it. The value is specified as an exponent of 2; for example, the host uses 2<SUP>{PacketAlignmentFactor}</SUP> as the alignment value.
+  uint32_t reserved[2]             ;
+} rndis_msg_initialize_cmplt_t;
+
+//------------- Query -------------//
+/// \brief Query Message
+/// \details This message MUST be sent by the host to query an OID.
+typedef struct {
+  uint32_t type          ; ///< Message Type, must be \ref RNDIS_MSG_QUERY
+  uint32_t length        ; ///< Message length in bytes, including the header and the \a oid_buffer
+  uint32_t request_id    ; ///< A 32-bit integer value, generated by the host, used to match the host's sent request to the response from the device.
+  uint32_t oid           ; ///< The integer value of the host operating system-defined identifier, for the parameter of the device being queried for.
+  uint32_t buffer_length ; ///< The length, in bytes, of the input data required for the OID query. This MUST be set to 0 when there is no input data associated with the OID.
+  uint32_t buffer_offset ; ///< The offset, in bytes, from the beginning of \a request_id field where the input data for the query is located in the message. This value MUST be set to 0 when there is no input data associated with the OID.
+  uint32_t reserved      ;
+  uint8_t  oid_buffer[]  ; ///< Flexible array contains the input data supplied by the host, required for the OID query request processing by the device, as per the host NDIS specification.
+} rndis_msg_query_t, rndis_msg_set_t;
+
+TU_VERIFY_STATIC(sizeof(rndis_msg_query_t) == 28, "Make sure flexible array member does not affect layout");
+
+/// \brief Query Complete Message
+/// \details This message MUST be sent by the device in response to a query OID message.
+typedef struct {
+  uint32_t type          ; ///< Message Type, must be \ref RNDIS_MSG_QUERY_CMPLT
+  uint32_t length        ; ///< Message length in bytes, including the header and the \a oid_buffer
+  uint32_t request_id    ; ///< A 32-bit integer value from \a request_id field of the \ref rndis_msg_query_t to which this message is a response.
+  uint32_t status        ; ///< The status of processing for the query request, has value from \ref rndis_msg_status_t.
+  uint32_t buffer_length ; ///< The length, in bytes, of the data in the response to the query. This MUST be set to 0 when there is no OIDInputBuffer.
+  uint32_t buffer_offset ; ///< The offset, in bytes, from the beginning of \a request_id field where the response data for the query is located in the message. This MUST be set to 0 when there is no \ref oid_buffer.
+  uint8_t  oid_buffer[]  ; ///< Flexible array member contains the response data to the OID query request as specified by the host.
+} rndis_msg_query_cmplt_t;
+
+TU_VERIFY_STATIC(sizeof(rndis_msg_query_cmplt_t) == 24, "Make sure flexible array member does not affect layout");
+
+//------------- Reset -------------//
+/// \brief Reset Message
+/// \details This message MUST be sent by the host to perform a soft reset on the device.
+typedef struct {
+  uint32_t type     ; ///< Message Type, must be \ref RNDIS_MSG_RESET
+  uint32_t length   ; ///< Message length in bytes, MUST be 0x06
+  uint32_t reserved ;
+} rndis_msg_reset_t;
+
+/// \brief Reset Complete Message
+/// \details This message MUST be sent by the device in response to a reset message.
+typedef struct {
+  uint32_t type             ; ///< Message Type, must be \ref RNDIS_MSG_RESET_CMPLT
+  uint32_t length           ; ///< Message length in bytes, MUST be 0x10
+  uint32_t status           ; ///< The status of processing for the \ref rndis_msg_reset_t, has value from \ref rndis_msg_status_t.
+  uint32_t addressing_reset ; ///< This field indicates whether the addressing information, which is the multicast address list or packet filter, has been lost during the reset operation. This MUST be set to 0x00000001 if the device requires that the host to resend addressing information or MUST be set to zero otherwise.
+} rndis_msg_reset_cmplt_t;
+
+//typedef struct {
+//  uint32_t type;
+//  uint32_t length;
+//  uint32_t status;
+//  uint32_t buffer_length;
+//  uint32_t buffer_offset;
+//  uint32_t diagnostic_status; // optional
+//  uint32_t diagnostic_error_offset; // optional
+//  uint32_t status_buffer[0]; // optional
+//} rndis_msg_indicate_status_t;
+
+/// \brief Keep Alive Message
+/// \details This message MUST be sent by the host to check that device is still responsive. It is optional for the device to send this message to check if the host is active
+typedef struct {
+  uint32_t type       ; ///< Message Type
+  uint32_t length     ; ///< Message length in bytes, MUST be 0x10
+  uint32_t request_id ;
+} rndis_msg_keep_alive_t, rndis_msg_halt_t;
+
+/// \brief Set Complete Message
+/// \brief This message MUST be sent in response to a the request message
+typedef struct {
+  uint32_t type       ; ///< Message Type
+  uint32_t length     ; ///< Message length in bytes, MUST be 0x10
+  uint32_t request_id ; ///< must be the same as requesting message
+  uint32_t status     ; ///< The status of processing for the request message request by the device to which this message is the response.
+} rndis_msg_set_cmplt_t, rndis_msg_keep_alive_cmplt_t;
+
+/// \brief Packet Data Message
+/// \brief This message MUST be used by the host and the device to send network data to one another.
+typedef struct {
+  uint32_t type                          ; ///< Message Type, must be \ref RNDIS_MSG_PACKET
+  uint32_t length                        ; ///< Message length in bytes, The total length of this RNDIS message including the header, payload, and padding.
+  uint32_t data_offset                   ; ///< Specifies the offset, in bytes, from the start of this \a data_offset field of this message to the start of the data. This MUST be an integer multiple of 4.
+  uint32_t data_length                   ; ///< Specifies the number of bytes in the payload of this message.
+  uint32_t out_of_band_data_offet        ; ///< Specifies the offset, in bytes, of the first out-of-band data record from the start of the DataOffset field in this message. MUST be an integer multiple of 4 when out-of-band data is present or set to 0 otherwise. When there are multiple out-ofband data records, each subsequent record MUST immediately follow the previous out-of-band data record.
+  uint32_t out_of_band_data_length       ; ///< Specifies, in bytes, the total length of the out-of-band data.
+  uint32_t num_out_of_band_data_elements ; ///< Specifies the number of out-of-band records in this message.
+  uint32_t per_packet_info_offset        ; ///< Specifies the offset, in bytes, of the start of per-packet-info data record from the start of the \a data_offset field in this message. MUST be an integer multiple of 4 when per-packet-info data record is present or MUST be set to 0 otherwise. When there are multiple per-packet-info data records, each subsequent record MUST immediately follow the previous record.
+  uint32_t per_packet_info_length        ; ///< Specifies, in bytes, the total length of per-packetinformation contained in this message.
+  uint32_t reserved[2]                   ;
+  uint32_t payload[0]                    ; ///< Network data contained in this message.
+
+  // uint8_t  padding[0]
+  // Additional bytes of zeros added at the end of the message to comply with
+  // the internal and external padding requirements. Internal padding SHOULD be as per the
+  // specification of the out-of-band data record and per-packet-info data record. The external
+  //padding size SHOULD be determined based on the PacketAlignmentFactor field specification
+  //in REMOTE_NDIS_INITIALIZE_CMPLT message by the device, when multiple
+  //REMOTE_NDIS_PACKET_MSG messages are bundled together in a single bus-native message.
+  //In this case, all but the very last REMOTE_NDIS_PACKET_MSG MUST respect the
+  //PacketAlignmentFactor field.
+
+  // rndis_msg_packet_t [0] : (optional) more packet if multiple packet per bus transaction is supported
+} rndis_msg_packet_t;
+
+
+typedef struct {
+  uint32_t size    ; ///< Length, in bytes, of this header and appended data and padding. This value MUST be an integer multiple of 4.
+  uint32_t type    ; ///< MUST be as per host operating system specification.
+  uint32_t offset  ; ///< The byte offset from the beginning of this record to the beginning of data.
+  uint32_t data[0] ; ///< Flexible array contains data
+} rndis_msg_out_of_band_data_t, rndis_msg_per_packet_info_t;
+
+//--------------------------------------------------------------------+
+// NDIS Object ID
+//--------------------------------------------------------------------+
+
+/// NDIS Object ID
+typedef enum
+{
+  //------------- General Required OIDs -------------//
+  RNDIS_OID_GEN_SUPPORTED_LIST          = 0x00010101, ///< List of supported OIDs
+  RNDIS_OID_GEN_HARDWARE_STATUS         = 0x00010102, ///< Hardware status
+  RNDIS_OID_GEN_MEDIA_SUPPORTED         = 0x00010103, ///< Media types supported (encoded)
+  RNDIS_OID_GEN_MEDIA_IN_USE            = 0x00010104, ///< Media types in use (encoded)
+  RNDIS_OID_GEN_MAXIMUM_LOOKAHEAD       = 0x00010105, ///<
+  RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE      = 0x00010106, ///< Maximum frame size in bytes
+  RNDIS_OID_GEN_LINK_SPEED              = 0x00010107, ///< Link speed in units of 100 bps
+  RNDIS_OID_GEN_TRANSMIT_BUFFER_SPACE   = 0x00010108, ///< Transmit buffer space
+  RNDIS_OID_GEN_RECEIVE_BUFFER_SPACE    = 0x00010109, ///< Receive buffer space
+  RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE     = 0x0001010A, ///< Minimum amount of storage, in bytes, that a single packet occupies in the transmit buffer space of the NIC
+  RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE      = 0x0001010B, ///< Amount of storage, in bytes, that a single packet occupies in the receive buffer space of the NIC
+  RNDIS_OID_GEN_VENDOR_ID               = 0x0001010C, ///< Vendor NIC code
+  RNDIS_OID_GEN_VENDOR_DESCRIPTION      = 0x0001010D, ///< Vendor network card description
+  RNDIS_OID_GEN_CURRENT_PACKET_FILTER   = 0x0001010E, ///< Current packet filter (encoded)
+  RNDIS_OID_GEN_CURRENT_LOOKAHEAD       = 0x0001010F, ///< Current lookahead size in bytes
+  RNDIS_OID_GEN_DRIVER_VERSION          = 0x00010110, ///< NDIS version number used by the driver
+  RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE      = 0x00010111, ///< Maximum total packet length in bytes
+  RNDIS_OID_GEN_PROTOCOL_OPTIONS        = 0x00010112, ///< Optional protocol flags (encoded)
+  RNDIS_OID_GEN_MAC_OPTIONS             = 0x00010113, ///< Optional NIC flags (encoded)
+  RNDIS_OID_GEN_MEDIA_CONNECT_STATUS    = 0x00010114, ///< Whether the NIC is connected to the network
+  RNDIS_OID_GEN_MAXIMUM_SEND_PACKETS    = 0x00010115, ///< The maximum number of send packets the driver can accept per call to its MiniportSendPacketsfunction
+
+  //------------- General Optional OIDs -------------//
+  RNDIS_OID_GEN_VENDOR_DRIVER_VERSION   = 0x00010116, ///< Vendor-assigned version number of the driver
+  RNDIS_OID_GEN_SUPPORTED_GUIDS         = 0x00010117, ///< The custom GUIDs (Globally Unique Identifier) supported by the miniport driver
+  RNDIS_OID_GEN_NETWORK_LAYER_ADDRESSES = 0x00010118, ///< List of network-layer addresses associated with the binding between a transport and the driver
+  RNDIS_OID_GEN_TRANSPORT_HEADER_OFFSET = 0x00010119, ///< Size of packets' additional headers
+  RNDIS_OID_GEN_MEDIA_CAPABILITIES      = 0x00010201, ///<
+  RNDIS_OID_GEN_PHYSICAL_MEDIUM         = 0x00010202, ///< Physical media supported by the miniport driver (encoded)
+
+  //------------- 802.3 Objects (Ethernet) -------------//
+  RNDIS_OID_802_3_PERMANENT_ADDRESS     = 0x01010101, ///< Permanent station address
+  RNDIS_OID_802_3_CURRENT_ADDRESS       = 0x01010102, ///< Current station address
+  RNDIS_OID_802_3_MULTICAST_LIST        = 0x01010103, ///< Current multicast address list
+  RNDIS_OID_802_3_MAXIMUM_LIST_SIZE     = 0x01010104, ///< Maximum size of multicast address list
+} rndis_oid_type_t;
+
+/// RNDIS Packet Filter Bits \ref RNDIS_OID_GEN_CURRENT_PACKET_FILTER.
+typedef enum
+{
+  RNDIS_PACKET_TYPE_DIRECTED              = 0x00000001, ///< Directed packets. Directed packets contain a destination address equal to the station address of the NIC.
+  RNDIS_PACKET_TYPE_MULTICAST             = 0x00000002, ///< Multicast address packets sent to addresses in the multicast address list.
+  RNDIS_PACKET_TYPE_ALL_MULTICAST         = 0x00000004, ///< All multicast address packets, not just the ones enumerated in the multicast address list.
+  RNDIS_PACKET_TYPE_BROADCAST             = 0x00000008, ///< Broadcast packets.
+  RNDIS_PACKET_TYPE_SOURCE_ROUTING        = 0x00000010, ///< All source routing packets. If the protocol driver sets this bit, the NDIS library attempts to act as a source routing bridge.
+  RNDIS_PACKET_TYPE_PROMISCUOUS           = 0x00000020, ///< Specifies all packets regardless of whether VLAN filtering is enabled or not and whether the VLAN identifier matches or not.
+  RNDIS_PACKET_TYPE_SMT                   = 0x00000040, ///< SMT packets that an FDDI NIC receives.
+  RNDIS_PACKET_TYPE_ALL_LOCAL             = 0x00000080, ///< All packets sent by installed protocols and all packets indicated by the NIC that is identified by a given NdisBindingHandle.
+  RNDIS_PACKET_TYPE_GROUP                 = 0x00001000, ///< Packets sent to the current group address.
+  RNDIS_PACKET_TYPE_ALL_FUNCTIONAL        = 0x00002000, ///< All functional address packets, not just the ones in the current functional address.
+  RNDIS_PACKET_TYPE_FUNCTIONAL            = 0x00004000, ///< Functional address packets sent to addresses included in the current functional address.
+  RNDIS_PACKET_TYPE_MAC_FRAME             = 0x00008000, ///< NIC driver frames that a Token Ring NIC receives.
+  RNDIS_PACKET_TYPE_NO_LOCAL              = 0x00010000,
+} rndis_packet_filter_type_t;
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CDC_RNDIS_H_ */
+
+/** @} */
+/** @} */
diff --git a/src/class/cdc/cdc_rndis_host.c b/src/class/cdc/cdc_rndis_host.c
new file mode 100644
index 000000000..ae61bf8b5
--- /dev/null
+++ b/src/class/cdc/cdc_rndis_host.c
@@ -0,0 +1,293 @@
+/**************************************************************************/
+/*!
+    @file     cdc_rndis_host.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_HOST_ENABLED && CFG_TUH_CDC && CFG_TUH_CDC_RNDIS)
+
+#define _TINY_USB_SOURCE_FILE_
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "common/tusb_common.h"
+#include "cdc_host.h"
+#include "cdc_rndis_host.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+#define RNDIS_MSG_PAYLOAD_MAX   (1024*4)
+
+CFG_TUSB_MEM_SECTION static uint8_t msg_notification[CFG_TUSB_HOST_DEVICE_MAX][8];
+CFG_TUSB_MEM_SECTION ATTR_ALIGNED(4) static uint8_t msg_payload[RNDIS_MSG_PAYLOAD_MAX];
+
+STATIC_VAR rndish_data_t rndish_data[CFG_TUSB_HOST_DEVICE_MAX];
+
+// TODO Microsoft requires message length for any get command must be at least 4096 bytes
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+static tusb_error_t rndis_body_subtask(void);
+static tusb_error_t send_message_get_response_subtask( uint8_t dev_addr, cdch_data_t *p_cdc,
+                                                       uint8_t * p_mess, uint32_t mess_length,
+                                                       uint8_t *p_response );
+
+//--------------------------------------------------------------------+
+// APPLICATION API
+//--------------------------------------------------------------------+
+tusb_error_t tusbh_cdc_rndis_get_mac_addr(uint8_t dev_addr, uint8_t mac_address[6])
+{
+  TU_ASSERT( tusbh_cdc_rndis_is_mounted(dev_addr),  TUSB_ERROR_CDCH_DEVICE_NOT_MOUNTED);
+  TU_VERIFY( mac_address,  TUSB_ERROR_INVALID_PARA);
+
+  memcpy(mac_address, rndish_data[dev_addr-1].mac_address, 6);
+
+  return TUSB_ERROR_NONE;
+}
+
+//--------------------------------------------------------------------+
+// IMPLEMENTATION
+//--------------------------------------------------------------------+
+
+// To enable the TASK_ASSERT style (quick return on false condition) in a real RTOS, a task must act as a wrapper
+// and is used mainly to call subtasks. Within a subtask return statement can be called freely, the task with
+// forever loop cannot have any return at all.
+OSAL_TASK_FUNCTION(cdch_rndis_task) (void* param;)
+{
+  OSAL_TASK_BEGIN
+  rndis_body_subtask();
+  OSAL_TASK_END
+}
+
+static tusb_error_t rndis_body_subtask(void)
+{
+  static uint8_t relative_addr;
+
+  OSAL_SUBTASK_BEGIN
+
+  for (relative_addr = 0; relative_addr < CFG_TUSB_HOST_DEVICE_MAX; relative_addr++)
+  {
+
+  }
+
+  osal_task_delay(100);
+
+  OSAL_SUBTASK_END
+}
+
+//--------------------------------------------------------------------+
+// RNDIS-CDC Driver API
+//--------------------------------------------------------------------+
+void rndish_init(void)
+{
+  tu_memclr(rndish_data, sizeof(rndish_data_t)*CFG_TUSB_HOST_DEVICE_MAX);
+
+  //------------- Task creation -------------//
+
+  //------------- semaphore creation for notificaiton pipe -------------//
+  for(uint8_t i=0; i<CFG_TUSB_HOST_DEVICE_MAX; i++)
+  {
+    rndish_data[i].sem_notification_hdl = osal_semaphore_create( OSAL_SEM_REF(rndish_data[i].semaphore_notification) );
+  }
+}
+
+void rndish_close(uint8_t dev_addr)
+{
+  osal_semaphore_reset( rndish_data[dev_addr-1].sem_notification_hdl );
+//  tu_memclr(&rndish_data[dev_addr-1], sizeof(rndish_data_t)); TODO need to move semaphore & its handle out before memclr
+}
+
+
+static rndis_msg_initialize_t const msg_init =
+{
+    .type          = RNDIS_MSG_INITIALIZE,
+    .length        = sizeof(rndis_msg_initialize_t),
+    .request_id    = 1, // TODO should use some magic number
+    .major_version = 1,
+    .minor_version = 0,
+    .max_xfer_size = 0x4000 // TODO mimic windows
+};
+
+static rndis_msg_query_t const msg_query_permanent_addr =
+{
+    .type          = RNDIS_MSG_QUERY,
+    .length        = sizeof(rndis_msg_query_t)+6,
+    .request_id    = 1,
+    .oid           = RNDIS_OID_802_3_PERMANENT_ADDRESS,
+    .buffer_length = 6,
+    .buffer_offset = 20,
+};
+
+static rndis_msg_set_t const msg_set_packet_filter =
+{
+    .type          = RNDIS_MSG_SET,
+    .length        = sizeof(rndis_msg_set_t)+4,
+    .request_id    = 1,
+    .oid           = RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
+    .buffer_length = 4,
+    .buffer_offset = 20,
+};
+
+tusb_error_t rndish_open_subtask(uint8_t dev_addr, cdch_data_t *p_cdc)
+{
+  tusb_error_t error;
+
+  OSAL_SUBTASK_BEGIN
+
+  //------------- Message Initialize -------------//
+  memcpy(msg_payload, &msg_init, sizeof(rndis_msg_initialize_t));
+  STASK_INVOKE(
+      send_message_get_response_subtask( dev_addr, p_cdc,
+                                         msg_payload, sizeof(rndis_msg_initialize_t),
+                                         msg_payload),
+      error
+  );
+  if ( TUSB_ERROR_NONE != error )   STASK_RETURN(error);
+
+  // TODO currently not support multiple data packets per xfer
+  rndis_msg_initialize_cmplt_t * const p_init_cmpt = (rndis_msg_initialize_cmplt_t *) msg_payload;
+  STASK_ASSERT(p_init_cmpt->type == RNDIS_MSG_INITIALIZE_CMPLT && p_init_cmpt->status == RNDIS_STATUS_SUCCESS &&
+                 p_init_cmpt->max_packet_per_xfer == 1 && p_init_cmpt->max_xfer_size <= RNDIS_MSG_PAYLOAD_MAX);
+  rndish_data[dev_addr-1].max_xfer_size = p_init_cmpt->max_xfer_size;
+
+  //------------- Message Query 802.3 Permanent Address -------------//
+  memcpy(msg_payload, &msg_query_permanent_addr, sizeof(rndis_msg_query_t));
+  tu_memclr(msg_payload + sizeof(rndis_msg_query_t), 6); // 6 bytes for MAC address
+
+  STASK_INVOKE(
+      send_message_get_response_subtask( dev_addr, p_cdc,
+                                         msg_payload, sizeof(rndis_msg_query_t) + 6,
+                                         msg_payload),
+      error
+  );
+  if ( TUSB_ERROR_NONE != error )   STASK_RETURN(error);
+
+  rndis_msg_query_cmplt_t * const p_query_cmpt = (rndis_msg_query_cmplt_t *) msg_payload;
+  STASK_ASSERT(p_query_cmpt->type == RNDIS_MSG_QUERY_CMPLT && p_query_cmpt->status == RNDIS_STATUS_SUCCESS);
+  memcpy(rndish_data[dev_addr-1].mac_address, msg_payload + 8 + p_query_cmpt->buffer_offset, 6);
+
+  //------------- Set OID_GEN_CURRENT_PACKET_FILTER to (DIRECTED | MULTICAST | BROADCAST) -------------//
+  memcpy(msg_payload, &msg_set_packet_filter, sizeof(rndis_msg_set_t));
+  tu_memclr(msg_payload + sizeof(rndis_msg_set_t), 4); // 4 bytes for filter flags
+  ((rndis_msg_set_t*) msg_payload)->oid_buffer[0] = (RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_MULTICAST | RNDIS_PACKET_TYPE_BROADCAST);
+
+  STASK_INVOKE(
+      send_message_get_response_subtask( dev_addr, p_cdc,
+                                         msg_payload, sizeof(rndis_msg_set_t) + 4,
+                                         msg_payload),
+      error
+  );
+  if ( TUSB_ERROR_NONE != error )   STASK_RETURN(error);
+
+  rndis_msg_set_cmplt_t * const p_set_cmpt = (rndis_msg_set_cmplt_t *) msg_payload;
+  STASK_ASSERT(p_set_cmpt->type == RNDIS_MSG_SET_CMPLT && p_set_cmpt->status == RNDIS_STATUS_SUCCESS);
+
+  tusbh_cdc_rndis_mounted_cb(dev_addr);
+
+  OSAL_SUBTASK_END
+}
+
+void rndish_xfer_isr(cdch_data_t *p_cdc, pipe_handle_t pipe_hdl, xfer_result_t event, uint32_t xferred_bytes)
+{
+  if ( pipehandle_is_equal(pipe_hdl, p_cdc->pipe_notification) )
+  {
+    osal_semaphore_post( rndish_data[pipe_hdl.dev_addr-1].sem_notification_hdl );
+  }
+}
+
+//--------------------------------------------------------------------+
+// INTERNAL & HELPER
+//--------------------------------------------------------------------+
+static tusb_error_t send_message_get_response_subtask( uint8_t dev_addr, cdch_data_t *p_cdc,
+                                                       uint8_t * p_mess, uint32_t mess_length,
+                                                       uint8_t *p_response)
+{
+  tusb_error_t error;
+
+  OSAL_SUBTASK_BEGIN
+
+  //------------- Send RNDIS Control Message -------------//
+  STASK_INVOKE(
+      usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_OUT, TUSB_REQ_TYPE_CLASS, TUSB_REQ_RCPT_INTERFACE),
+                                 CDC_REQUEST_SEND_ENCAPSULATED_COMMAND, 0, p_cdc->interface_number,
+                                 mess_length, p_mess),
+      error
+  );
+  if ( TUSB_ERROR_NONE != error )   STASK_RETURN(error);
+
+  //------------- waiting for Response Available notification -------------//
+  (void) hcd_pipe_xfer(p_cdc->pipe_notification, msg_notification[dev_addr-1], 8, true);
+  osal_semaphore_wait(rndish_data[dev_addr-1].sem_notification_hdl, OSAL_TIMEOUT_NORMAL, &error);
+  if ( TUSB_ERROR_NONE != error )   STASK_RETURN(error);
+  STASK_ASSERT(msg_notification[dev_addr-1][0] == 1);
+
+  //------------- Get RNDIS Message Initialize Complete -------------//
+  STASK_INVOKE(
+    usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_IN, TUSB_REQ_TYPE_CLASS, TUSB_REQ_RCPT_INTERFACE),
+                               CDC_REQUEST_GET_ENCAPSULATED_RESPONSE, 0, p_cdc->interface_number,
+                               RNDIS_MSG_PAYLOAD_MAX, p_response),
+    error
+  );
+  if ( TUSB_ERROR_NONE != error )   STASK_RETURN(error);
+
+  OSAL_SUBTASK_END
+}
+
+//static tusb_error_t send_process_msg_initialize_subtask(uint8_t dev_addr, cdch_data_t *p_cdc)
+//{
+//  tusb_error_t error;
+//
+//  OSAL_SUBTASK_BEGIN
+//
+//  *((rndis_msg_initialize_t*) msg_payload) = (rndis_msg_initialize_t)
+//                                            {
+//                                                .type          = RNDIS_MSG_INITIALIZE,
+//                                                .length        = sizeof(rndis_msg_initialize_t),
+//                                                .request_id    = 1, // TODO should use some magic number
+//                                                .major_version = 1,
+//                                                .minor_version = 0,
+//                                                .max_xfer_size = 0x4000 // TODO mimic windows
+//                                            };
+//
+//
+//
+//  OSAL_SUBTASK_END
+//}
+#endif
diff --git a/src/class/cdc/cdc_rndis_host.h b/src/class/cdc/cdc_rndis_host.h
new file mode 100644
index 000000000..3b92d3f23
--- /dev/null
+++ b/src/class/cdc/cdc_rndis_host.h
@@ -0,0 +1,79 @@
+/**************************************************************************/
+/*!
+    @file     cdc_rndis_host.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \ingroup CDC_RNDIS
+ * \defgroup CDC_RNSID_Host Host
+ *  @{ */
+
+#ifndef _TUSB_CDC_RNDIS_HOST_H_
+#define _TUSB_CDC_RNDIS_HOST_H_
+
+#include "common/tusb_common.h"
+#include "host/usbh.h"
+#include "cdc_rndis.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// RNDIS-CDC Driver API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+typedef struct {
+  OSAL_SEM_DEF(semaphore_notification);
+  osal_semaphore_handle_t sem_notification_hdl;  // used to wait on notification pipe
+  uint32_t max_xfer_size; // got from device's msg initialize complete
+  uint8_t mac_address[6];
+}rndish_data_t;
+
+void rndish_init(void);
+tusb_error_t rndish_open_subtask(uint8_t dev_addr, cdch_data_t *p_cdc) ATTR_WARN_UNUSED_RESULT;
+void rndish_xfer_isr(cdch_data_t *p_cdc, pipe_handle_t pipe_hdl, xfer_result_t event, uint32_t xferred_bytes);
+void rndish_close(uint8_t dev_addr);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CDC_RNDIS_HOST_H_ */
+
+/** @} */
diff --git a/src/class/custom/custom_device.c b/src/class/custom/custom_device.c
new file mode 100644
index 000000000..129d405a4
--- /dev/null
+++ b/src/class/custom/custom_device.c
@@ -0,0 +1,107 @@
+/**************************************************************************/
+/*!
+    @file     custom_device.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2018, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_CUSTOM_CLASS)
+
+#define _TINY_USB_SOURCE_FILE_
+
+#include "common/tusb_common.h"
+#include "custom_device.h"
+#include "device/usbd_pvt.h"
+
+/*------------------------------------------------------------------*/
+/* MACRO TYPEDEF CONSTANT ENUM
+ *------------------------------------------------------------------*/
+
+/*------------------------------------------------------------------*/
+/* VARIABLE DECLARATION
+ *------------------------------------------------------------------*/
+typedef struct {
+  uint8_t itf_num;
+
+  uint8_t ep_in;
+  uint8_t ep_out;
+
+} cusd_interface_t;
+
+static cusd_interface_t _cusd_itf;
+
+/*------------------------------------------------------------------*/
+/* FUNCTION DECLARATION
+ *------------------------------------------------------------------*/
+void cusd_init(void)
+{
+  tu_varclr(&_cusd_itf);
+}
+
+bool cusd_open(uint8_t rhport, tusb_desc_interface_t const * p_desc_itf, uint16_t *p_len)
+{
+  cusd_interface_t* p_itf = &_cusd_itf;
+
+  // Open endpoint pair with usbd helper
+  tusb_desc_endpoint_t const *p_desc_ep = (tusb_desc_endpoint_t const *) tu_desc_next(p_desc_itf);
+  TU_ASSERT( usbd_open_edpt_pair(rhport, p_desc_ep, TUSB_XFER_BULK, &p_itf->ep_out, &p_itf->ep_in) );
+
+  p_itf->itf_num = p_desc_itf->bInterfaceNumber;
+
+  (*p_len) = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
+
+  // TODO Prepare for incoming data
+//  TU_ASSERT( dcd_edpt_xfer(rhport, p_itf->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
+
+  return true;
+}
+
+bool cusd_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  return false;
+}
+
+bool cusd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
+{
+  return true;
+}
+
+void cusd_reset(uint8_t rhport)
+{
+
+}
+
+#endif
diff --git a/src/class/custom/custom_device.h b/src/class/custom/custom_device.h
new file mode 100644
index 000000000..aae06d503
--- /dev/null
+++ b/src/class/custom/custom_device.h
@@ -0,0 +1,74 @@
+/**************************************************************************/
+/*!
+    @file     custom_device.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2018, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#ifndef _TUSB_CUSTOM_DEVICE_H_
+#define _TUSB_CUSTOM_DEVICE_H_
+
+#include "common/tusb_common.h"
+#include "device/usbd.h"
+
+//--------------------------------------------------------------------+
+// APPLICATION API (Multiple Root Ports)
+// Should be used only with MCU that support more than 1 ports
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// APPLICATION API (Single Port)
+// Should be used with MCU supporting only 1 USB port for code simplicity
+//--------------------------------------------------------------------+
+
+
+//--------------------------------------------------------------------+
+// APPLICATION CALLBACK API (WEAK is optional)
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// USBD-CLASS DRIVER API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+void cusd_init(void);
+bool cusd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length);
+bool cusd_control_request_st(uint8_t rhport, tusb_control_request_t const * p_request);
+bool cusd_control_request_complete (uint8_t rhport, tusb_control_request_t const * p_request);
+bool cusd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
+void cusd_reset(uint8_t rhport);
+#endif
+
+
+#endif /* _TUSB_CUSTOM_DEVICE_H_ */
diff --git a/src/class/custom/custom_host.c b/src/class/custom/custom_host.c
new file mode 100644
index 000000000..894e641e8
--- /dev/null
+++ b/src/class/custom/custom_host.c
@@ -0,0 +1,160 @@
+/**************************************************************************/
+/*!
+    @file     custom_host.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_HOST_ENABLED && CFG_TUSB_HOST_CUSTOM_CLASS)
+
+#define _TINY_USB_SOURCE_FILE_
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "common/tusb_common.h"
+#include "custom_host.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+custom_interface_info_t custom_interface[CFG_TUSB_HOST_DEVICE_MAX];
+
+static tusb_error_t cush_validate_paras(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length)
+{
+  if ( !tusbh_custom_is_mounted(dev_addr, vendor_id, product_id) )
+  {
+    return TUSB_ERROR_DEVICE_NOT_READY;
+  }
+
+  TU_ASSERT( p_buffer != NULL && length != 0, TUSB_ERROR_INVALID_PARA);
+
+  return TUSB_ERROR_NONE;
+}
+//--------------------------------------------------------------------+
+// APPLICATION API (need to check parameters)
+//--------------------------------------------------------------------+
+tusb_error_t tusbh_custom_read(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length)
+{
+  TU_ASSERT_ERR( cush_validate_paras(dev_addr, vendor_id, product_id, p_buffer, length) );
+
+  if ( !hcd_pipe_is_idle(custom_interface[dev_addr-1].pipe_in) )
+  {
+    return TUSB_ERROR_INTERFACE_IS_BUSY;
+  }
+
+  (void) hcd_pipe_xfer( custom_interface[dev_addr-1].pipe_in, p_buffer, length, true);
+
+  return TUSB_ERROR_NONE;
+}
+
+tusb_error_t tusbh_custom_write(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void const * p_data, uint16_t length)
+{
+  TU_ASSERT_ERR( cush_validate_paras(dev_addr, vendor_id, product_id, p_data, length) );
+
+  if ( !hcd_pipe_is_idle(custom_interface[dev_addr-1].pipe_out) )
+  {
+    return TUSB_ERROR_INTERFACE_IS_BUSY;
+  }
+
+  (void) hcd_pipe_xfer( custom_interface[dev_addr-1].pipe_out, p_data, length, true);
+
+  return TUSB_ERROR_NONE;
+}
+
+//--------------------------------------------------------------------+
+// USBH-CLASS API
+//--------------------------------------------------------------------+
+void cush_init(void)
+{
+  tu_memclr(&custom_interface, sizeof(custom_interface_info_t) * CFG_TUSB_HOST_DEVICE_MAX);
+}
+
+tusb_error_t cush_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length)
+{
+  // FIXME quick hack to test lpc1k custom class with 2 bulk endpoints
+  uint8_t const *p_desc = (uint8_t const *) p_interface_desc;
+  p_desc = tu_desc_next(p_desc);
+
+  //------------- Bulk Endpoints Descriptor -------------//
+  for(uint32_t i=0; i<2; i++)
+  {
+    tusb_desc_endpoint_t const *p_endpoint = (tusb_desc_endpoint_t const *) p_desc;
+    TU_ASSERT(TUSB_DESC_ENDPOINT == p_endpoint->bDescriptorType, TUSB_ERROR_INVALID_PARA);
+
+    pipe_handle_t * p_pipe_hdl =  ( p_endpoint->bEndpointAddress &  TUSB_DIR_IN_MASK ) ?
+                         &custom_interface[dev_addr-1].pipe_in : &custom_interface[dev_addr-1].pipe_out;
+    *p_pipe_hdl = hcd_edpt_open(dev_addr, p_endpoint, TUSB_CLASS_VENDOR_SPECIFIC);
+    TU_ASSERT ( pipehandle_is_valid(*p_pipe_hdl), TUSB_ERROR_HCD_OPEN_PIPE_FAILED );
+
+    p_desc = tu_desc_next(p_desc);
+  }
+
+  (*p_length) = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
+  return TUSB_ERROR_NONE;
+}
+
+void cush_isr(pipe_handle_t pipe_hdl, xfer_result_t event)
+{
+
+}
+
+void cush_close(uint8_t dev_addr)
+{
+  tusb_error_t err1, err2;
+  custom_interface_info_t * p_interface = &custom_interface[dev_addr-1];
+
+  // TODO re-consider to check pipe valid before calling pipe_close
+  if( pipehandle_is_valid( p_interface->pipe_in ) )
+  {
+    err1 = hcd_pipe_close( p_interface->pipe_in );
+  }
+
+  if ( pipehandle_is_valid( p_interface->pipe_out ) )
+  {
+    err2 = hcd_pipe_close( p_interface->pipe_out );
+  }
+
+  tu_memclr(p_interface, sizeof(custom_interface_info_t));
+
+  TU_ASSERT(err1 == TUSB_ERROR_NONE && err2 == TUSB_ERROR_NONE, (void) 0 );
+}
+
+#endif
diff --git a/src/class/custom/custom_host.h b/src/class/custom/custom_host.h
new file mode 100644
index 000000000..5f9c25dda
--- /dev/null
+++ b/src/class/custom/custom_host.h
@@ -0,0 +1,87 @@
+/**************************************************************************/
+/*!
+    @file     custom_host.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \ingroup group_class
+ *  \defgroup Group_Custom Custom Class (not supported yet)
+ *  @{ */
+
+#ifndef _TUSB_CUSTOM_HOST_H_
+#define _TUSB_CUSTOM_HOST_H_
+
+#include "common/tusb_common.h"
+#include "host/usbh.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+typedef struct {
+  pipe_handle_t pipe_in;
+  pipe_handle_t pipe_out;
+}custom_interface_info_t;
+
+//--------------------------------------------------------------------+
+// USBH-CLASS DRIVER API
+//--------------------------------------------------------------------+
+static inline bool tusbh_custom_is_mounted(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id)
+{
+  (void) vendor_id; // TODO check this later
+  (void) product_id;
+//  return (tusbh_device_get_mounted_class_flag(dev_addr) & BIT_(TUSB_CLASS_MAPPED_INDEX_END-1) ) != 0;
+  return false;
+}
+
+tusb_error_t tusbh_custom_read(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length);
+tusb_error_t tusbh_custom_write(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void const * p_data, uint16_t length);
+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+void         cush_init(void);
+tusb_error_t cush_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length) ATTR_WARN_UNUSED_RESULT;
+void         cush_isr(pipe_handle_t pipe_hdl, xfer_result_t event);
+void         cush_close(uint8_t dev_addr);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CUSTOM_HOST_H_ */
+
+/** @} */
diff --git a/src/class/hid/hid.h b/src/class/hid/hid.h
new file mode 100644
index 000000000..8bfede2da
--- /dev/null
+++ b/src/class/hid/hid.h
@@ -0,0 +1,618 @@
+/**************************************************************************/
+/*!
+    @file     hid.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \ingroup group_class
+ *  \defgroup ClassDriver_HID Human Interface Device (HID)
+ *  @{ */
+
+#ifndef _TUSB_HID_H_
+#define _TUSB_HID_H_
+
+#include "common/tusb_common.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// Common Definitions
+//--------------------------------------------------------------------+
+/** \defgroup ClassDriver_HID_Common Common Definitions
+ *  @{ */
+
+/// HID Subclass
+typedef enum
+{
+  HID_SUBCLASS_NONE = 0, ///< No Subclass
+  HID_SUBCLASS_BOOT = 1  ///< Boot Interface Subclass
+}hid_subclass_type_t;
+
+/// HID Protocol
+typedef enum
+{
+  HID_PROTOCOL_NONE     = 0, ///< None
+  HID_PROTOCOL_KEYBOARD = 1, ///< Keyboard
+  HID_PROTOCOL_MOUSE    = 2  ///< Mouse
+}hid_protocol_type_t;
+
+/// HID Descriptor Type
+typedef enum
+{
+  HID_DESC_TYPE_HID      = 0x21, ///< HID Descriptor
+  HID_DESC_TYPE_REPORT   = 0x22, ///< Report Descriptor
+  HID_DESC_TYPE_PHYSICAL = 0x23  ///< Physical Descriptor
+}hid_descriptor_type_t;
+
+/// HID Request Report Type
+typedef enum
+{
+  HID_REPORT_TYPE_INPUT = 1, ///< Input
+  HID_REPORT_TYPE_OUTPUT,    ///< Output
+  HID_REPORT_TYPE_FEATURE    ///< Feature
+}hid_report_type_t;
+
+/// HID Class Specific Control Request
+typedef enum
+{
+  HID_REQ_CONTROL_GET_REPORT   = 0x01, ///< Get Report
+  HID_REQ_CONTROL_GET_IDLE     = 0x02, ///< Get Idle
+  HID_REQ_CONTROL_GET_PROTOCOL = 0x03, ///< Get Protocol
+  HID_REQ_CONTROL_SET_REPORT   = 0x09, ///< Set Report
+  HID_REQ_CONTROL_SET_IDLE     = 0x0a, ///< Set Idle
+  HID_REQ_CONTROL_SET_PROTOCOL = 0x0b  ///< Set Protocol
+}hid_request_type_t;
+
+/// USB HID Descriptor
+typedef struct ATTR_PACKED
+{
+  uint8_t  bLength;         /**< Numeric expression that is the total size of the HID descriptor */
+  uint8_t  bDescriptorType; /**< Constant name specifying type of HID descriptor. */
+
+  uint16_t bcdHID;          /**< Numeric expression identifying the HID Class Specification release */
+  uint8_t  bCountryCode;    /**< Numeric expression identifying country code of the localized hardware.  */
+  uint8_t  bNumDescriptors; /**< Numeric expression specifying the number of class descriptors */
+
+  uint8_t  bReportType;     /**< Type of HID class report. */
+  uint16_t wReportLength;   /**< the total size of the Report descriptor. */
+} tusb_hid_descriptor_hid_t;
+
+/// HID Country Code
+typedef enum
+{
+  HID_Local_NotSupported = 0   , ///< NotSupported
+  HID_Local_Arabic             , ///< Arabic
+  HID_Local_Belgian            , ///< Belgian
+  HID_Local_Canadian_Bilingual , ///< Canadian_Bilingual
+  HID_Local_Canadian_French    , ///< Canadian_French
+  HID_Local_Czech_Republic     , ///< Czech_Republic
+  HID_Local_Danish             , ///< Danish
+  HID_Local_Finnish            , ///< Finnish
+  HID_Local_French             , ///< French
+  HID_Local_German             , ///< German
+  HID_Local_Greek              , ///< Greek
+  HID_Local_Hebrew             , ///< Hebrew
+  HID_Local_Hungary            , ///< Hungary
+  HID_Local_International      , ///< International
+  HID_Local_Italian            , ///< Italian
+  HID_Local_Japan_Katakana     , ///< Japan_Katakana
+  HID_Local_Korean             , ///< Korean
+  HID_Local_Latin_American     , ///< Latin_American
+  HID_Local_Netherlands_Dutch  , ///< Netherlands/Dutch
+  HID_Local_Norwegian          , ///< Norwegian
+  HID_Local_Persian_Farsi      , ///< Persian (Farsi)
+  HID_Local_Poland             , ///< Poland
+  HID_Local_Portuguese         , ///< Portuguese
+  HID_Local_Russia             , ///< Russia
+  HID_Local_Slovakia           , ///< Slovakia
+  HID_Local_Spanish            , ///< Spanish
+  HID_Local_Swedish            , ///< Swedish
+  HID_Local_Swiss_French       , ///< Swiss/French
+  HID_Local_Swiss_German       , ///< Swiss/German
+  HID_Local_Switzerland        , ///< Switzerland
+  HID_Local_Taiwan             , ///< Taiwan
+  HID_Local_Turkish_Q          , ///< Turkish-Q
+  HID_Local_UK                 , ///< UK
+  HID_Local_US                 , ///< US
+  HID_Local_Yugoslavia         , ///< Yugoslavia
+  HID_Local_Turkish_F            ///< Turkish-F
+} hid_country_code_t;
+
+/** @} */
+
+//--------------------------------------------------------------------+
+// MOUSE
+//--------------------------------------------------------------------+
+/** \addtogroup ClassDriver_HID_Mouse Mouse
+ *  @{ */
+
+/// Standard HID Boot Protocol Mouse Report.
+typedef struct ATTR_PACKED
+{
+  uint8_t buttons; /**< buttons mask for currently pressed buttons in the mouse. */
+  int8_t  x;       /**< Current delta x movement of the mouse. */
+  int8_t  y;       /**< Current delta y movement on the mouse. */
+  int8_t  wheel;   /**< Current delta wheel movement on the mouse. */
+//  int8_t  pan;
+} hid_mouse_report_t;
+
+/// Standard Mouse Buttons Bitmap
+typedef enum
+{
+	MOUSE_BUTTON_LEFT     = BIT_(0), ///< Left button
+	MOUSE_BUTTON_RIGHT    = BIT_(1), ///< Right button
+	MOUSE_BUTTON_MIDDLE   = BIT_(2), ///< Middle button
+  MOUSE_BUTTON_BACKWARD = BIT_(3), ///< Backward button,
+  MOUSE_BUTTON_FORWARD  = BIT_(4), ///< Forward button,
+}hid_mouse_button_bm_t;
+
+/// @}
+
+//--------------------------------------------------------------------+
+// Keyboard
+//--------------------------------------------------------------------+
+/** \addtogroup ClassDriver_HID_Keyboard Keyboard
+ *  @{ */
+
+/// Standard HID Boot Protocol Keyboard Report.
+typedef struct ATTR_PACKED
+{
+  uint8_t modifier;   /**< Keyboard modifier byte, indicating pressed modifier keys (a combination of HID_KEYBOARD_MODIFER_* masks). */
+  uint8_t reserved;   /**< Reserved for OEM use, always set to 0. */
+  uint8_t keycode[6]; /**< Key codes of the currently pressed keys. */
+} hid_keyboard_report_t;
+
+/// Keyboard modifier codes bitmap
+typedef enum
+{
+	KEYBOARD_MODIFIER_LEFTCTRL   = BIT_(0), ///< Left Control
+	KEYBOARD_MODIFIER_LEFTSHIFT  = BIT_(1), ///< Left Shift
+	KEYBOARD_MODIFIER_LEFTALT    = BIT_(2), ///< Left Alt
+	KEYBOARD_MODIFIER_LEFTGUI    = BIT_(3), ///< Left Window
+	KEYBOARD_MODIFIER_RIGHTCTRL  = BIT_(4), ///< Right Control
+	KEYBOARD_MODIFIER_RIGHTSHIFT = BIT_(5), ///< Right Shift
+	KEYBOARD_MODIFIER_RIGHTALT   = BIT_(6), ///< Right Alt
+	KEYBOARD_MODIFIER_RIGHTGUI   = BIT_(7)  ///< Right Window
+}hid_keyboard_modifier_bm_t;
+
+typedef enum
+{
+  KEYBOARD_LED_NUMLOCK    = BIT_(0), ///< Num Lock LED
+  KEYBOARD_LED_CAPSLOCK   = BIT_(1), ///< Caps Lock LED
+  KEYBOARD_LED_SCROLLLOCK = BIT_(2), ///< Scroll Lock LED
+  KEYBOARD_LED_COMPOSE    = BIT_(3), ///< Composition Mode
+  KEYBOARD_LED_KANA       = BIT_(4) ///< Kana mode
+}hid_keyboard_led_bm_t;
+
+/// @}
+
+//--------------------------------------------------------------------+
+// HID KEYCODE
+//--------------------------------------------------------------------+
+#define HID_KEY_NONE               0x00
+#define HID_KEY_A                  0x04
+#define HID_KEY_B                  0x05
+#define HID_KEY_C                  0x06
+#define HID_KEY_D                  0x07
+#define HID_KEY_E                  0x08
+#define HID_KEY_F                  0x09
+#define HID_KEY_G                  0x0A
+#define HID_KEY_H                  0x0B
+#define HID_KEY_I                  0x0C
+#define HID_KEY_J                  0x0D
+#define HID_KEY_K                  0x0E
+#define HID_KEY_L                  0x0F
+#define HID_KEY_M                  0x10
+#define HID_KEY_N                  0x11
+#define HID_KEY_O                  0x12
+#define HID_KEY_P                  0x13
+#define HID_KEY_Q                  0x14
+#define HID_KEY_R                  0x15
+#define HID_KEY_S                  0x16
+#define HID_KEY_T                  0x17
+#define HID_KEY_U                  0x18
+#define HID_KEY_V                  0x19
+#define HID_KEY_W                  0x1A
+#define HID_KEY_X                  0x1B
+#define HID_KEY_Y                  0x1C
+#define HID_KEY_Z                  0x1D
+#define HID_KEY_1                  0x1E
+#define HID_KEY_2                  0x1F
+#define HID_KEY_3                  0x20
+#define HID_KEY_4                  0x21
+#define HID_KEY_5                  0x22
+#define HID_KEY_6                  0x23
+#define HID_KEY_7                  0x24
+#define HID_KEY_8                  0x25
+#define HID_KEY_9                  0x26
+#define HID_KEY_0                  0x27
+#define HID_KEY_RETURN             0x28
+#define HID_KEY_ESCAPE             0x29
+#define HID_KEY_BACKSPACE          0x2A
+#define HID_KEY_TAB                0x2B
+#define HID_KEY_SPACE              0x2C
+#define HID_KEY_MINUS              0x2D
+#define HID_KEY_EQUAL              0x2E
+#define HID_KEY_BRACKET_LEFT       0x2F
+#define HID_KEY_BRACKET_RIGHT      0x30
+#define HID_KEY_BACKSLASH          0x31
+#define HID_KEY_EUROPE_1           0x32
+#define HID_KEY_SEMICOLON          0x33
+#define HID_KEY_APOSTROPHE         0x34
+#define HID_KEY_GRAVE              0x35
+#define HID_KEY_COMMA              0x36
+#define HID_KEY_PERIOD             0x37
+#define HID_KEY_SLASH              0x38
+#define HID_KEY_CAPS_LOCK          0x39
+#define HID_KEY_F1                 0x3A
+#define HID_KEY_F2                 0x3B
+#define HID_KEY_F3                 0x3C
+#define HID_KEY_F4                 0x3D
+#define HID_KEY_F5                 0x3E
+#define HID_KEY_F6                 0x3F
+#define HID_KEY_F7                 0x40
+#define HID_KEY_F8                 0x41
+#define HID_KEY_F9                 0x42
+#define HID_KEY_F10                0x43
+#define HID_KEY_F11                0x44
+#define HID_KEY_F12                0x45
+#define HID_KEY_PRINT_SCREEN       0x46
+#define HID_KEY_SCROLL_LOCK        0x47
+#define HID_KEY_PAUSE              0x48
+#define HID_KEY_INSERT             0x49
+#define HID_KEY_HOME               0x4A
+#define HID_KEY_PAGE_UP            0x4B
+#define HID_KEY_DELETE             0x4C
+#define HID_KEY_END                0x4D
+#define HID_KEY_PAGE_DOWN          0x4E
+#define HID_KEY_ARROW_RIGHT        0x4F
+#define HID_KEY_ARROW_LEFT         0x50
+#define HID_KEY_ARROW_DOWN         0x51
+#define HID_KEY_ARROW_UP           0x52
+#define HID_KEY_NUM_LOCK           0x53
+#define HID_KEY_KEYPAD_DIVIDE      0x54
+#define HID_KEY_KEYPAD_MULTIPLY    0x55
+#define HID_KEY_KEYPAD_SUBTRACT    0x56
+#define HID_KEY_KEYPAD_ADD         0x57
+#define HID_KEY_KEYPAD_ENTER       0x58
+#define HID_KEY_KEYPAD_1           0x59
+#define HID_KEY_KEYPAD_2           0x5A
+#define HID_KEY_KEYPAD_3           0x5B
+#define HID_KEY_KEYPAD_4           0x5C
+#define HID_KEY_KEYPAD_5           0x5D
+#define HID_KEY_KEYPAD_6           0x5E
+#define HID_KEY_KEYPAD_7           0x5F
+#define HID_KEY_KEYPAD_8           0x60
+#define HID_KEY_KEYPAD_9           0x61
+#define HID_KEY_KEYPAD_0           0x62
+#define HID_KEY_KEYPAD_DECIMAL     0x63
+#define HID_KEY_EUROPE_2           0x64
+#define HID_KEY_APPLICATION        0x65
+#define HID_KEY_POWER              0x66
+#define HID_KEY_KEYPAD_EQUAL       0x67
+#define HID_KEY_F13                0x68
+#define HID_KEY_F14                0x69
+#define HID_KEY_F15                0x6A
+#define HID_KEY_CONTROL_LEFT       0xE0
+#define HID_KEY_SHIFT_LEFT         0xE1
+#define HID_KEY_ALT_LEFT           0xE2
+#define HID_KEY_GUI_LEFT           0xE3
+#define HID_KEY_CONTROL_RIGHT      0xE4
+#define HID_KEY_SHIFT_RIGHT        0xE5
+#define HID_KEY_ALT_RIGHT          0xE6
+#define HID_KEY_GUI_RIGHT          0xE7
+
+
+//--------------------------------------------------------------------+
+// REPORT DESCRIPTOR
+//--------------------------------------------------------------------+
+//------------- ITEM & TAG -------------//
+#define HID_REPORT_DATA_0(data)
+#define HID_REPORT_DATA_1(data) , data
+#define HID_REPORT_DATA_2(data) , U16_TO_U8S_LE(data)
+#define HID_REPORT_DATA_3(data) , U32_TO_U8S_LE(data)
+
+#define HID_REPORT_ITEM(data, tag, type, size) \
+  (((tag) << 4) | ((type) << 2) | (size)) HID_REPORT_DATA_##size(data)
+
+#define RI_TYPE_MAIN   0
+#define RI_TYPE_GLOBAL 1
+#define RI_TYPE_LOCAL  2
+
+//------------- MAIN ITEMS 6.2.2.4 -------------//
+#define HID_INPUT(x)           HID_REPORT_ITEM(x,  8, RI_TYPE_MAIN, 1)
+#define HID_OUTPUT(x)          HID_REPORT_ITEM(x,  9, RI_TYPE_MAIN, 1)
+#define HID_COLLECTION(x)      HID_REPORT_ITEM(x, 10, RI_TYPE_MAIN, 1)
+#define HID_FEATURE(x)         HID_REPORT_ITEM(x, 11, RI_TYPE_MAIN, 1)
+#define HID_COLLECTION_END     HID_REPORT_ITEM(x, 12, RI_TYPE_MAIN, 0)
+
+//------------- INPUT, OUTPUT, FEATURE 6.2.2.5 -------------//
+#define HID_DATA             (0<<0)
+#define HID_CONSTANT         (1<<0)
+
+#define HID_ARRAY            (0<<1)
+#define HID_VARIABLE         (1<<1)
+
+#define HID_ABSOLUTE         (0<<2)
+#define HID_RELATIVE         (1<<2)
+
+#define HID_WRAP_NO          (0<<3)
+#define HID_WRAP             (1<<3)
+
+#define HID_LINEAR           (0<<4)
+#define HID_NONLINEAR        (1<<4)
+
+#define HID_PREFERRED_STATE  (0<<5)
+#define HID_PREFERRED_NO     (1<<5)
+
+#define HID_NO_NULL_POSITION (0<<6)
+#define HID_NULL_STATE       (1<<6)
+
+#define HID_NON_VOLATILE     (0<<7)
+#define HID_VOLATILE         (1<<7)
+
+#define HID_BITFIELD         (0<<8)
+#define HID_BUFFERED_BYTES   (1<<8)
+
+//------------- COLLECTION ITEM 6.2.2.6 -------------//
+enum {
+  HID_COLLECTION_PHYSICAL = 0,
+  HID_COLLECTION_APPLICATION,
+  HID_COLLECTION_LOGICAL,
+  HID_COLLECTION_REPORT,
+  HID_COLLECTION_NAMED_ARRAY,
+  HID_COLLECTION_USAGE_SWITCH,
+  HID_COLLECTION_USAGE_MODIFIER
+};
+
+//------------- GLOBAL ITEMS 6.2.2.7 -------------//
+#define HID_USAGE_PAGE(x)         HID_REPORT_ITEM(x, 0, RI_TYPE_GLOBAL, 1)
+#define HID_USAGE_PAGE_N(x, n)    HID_REPORT_ITEM(x, 0, RI_TYPE_GLOBAL, n)
+
+#define HID_LOGICAL_MIN(x)        HID_REPORT_ITEM(x, 1, RI_TYPE_GLOBAL, 1)
+#define HID_LOGICAL_MIN_N(x, n)   HID_REPORT_ITEM(x, 1, RI_TYPE_GLOBAL, n)
+
+#define HID_LOGICAL_MAX(x)        HID_REPORT_ITEM(x, 2, RI_TYPE_GLOBAL, 1)
+#define HID_LOGICAL_MAX_N(x, n)   HID_REPORT_ITEM(x, 2, RI_TYPE_GLOBAL, n)
+
+#define HID_PHYSICAL_MIN(x)       HID_REPORT_ITEM(x, 3, RI_TYPE_GLOBAL, 1)
+#define HID_PHYSICAL_MIN_N(x, n)  HID_REPORT_ITEM(x, 3, RI_TYPE_GLOBAL, n)
+
+#define HID_PHYSICAL_MAX(x)       HID_REPORT_ITEM(x, 4, RI_TYPE_GLOBAL, 1)
+#define HID_PHYSICAL_MAX_N(x, n)  HID_REPORT_ITEM(x, 4, RI_TYPE_GLOBAL, n)
+
+#define HID_UNIT_EXPONENT(x)      HID_REPORT_ITEM(x, 5, RI_TYPE_GLOBAL, 1)
+#define HID_UNIT_EXPONENT_N(x, n) HID_REPORT_ITEM(x, 5, RI_TYPE_GLOBAL, n)
+
+#define HID_UNIT(x)               HID_REPORT_ITEM(x, 6, RI_TYPE_GLOBAL, 1)
+#define HID_UNIT_N(x, n)          HID_REPORT_ITEM(x, 6, RI_TYPE_GLOBAL, n)
+
+#define HID_REPORT_SIZE(x)        HID_REPORT_ITEM(x, 7, RI_TYPE_GLOBAL, 1)
+#define HID_REPORT_SIZE_N(x, n)   HID_REPORT_ITEM(x, 7, RI_TYPE_GLOBAL, n)
+
+#define HID_REPORT_ID(x)          HID_REPORT_ITEM(x, 8, RI_TYPE_GLOBAL, 1)
+#define HID_REPORT_ID_N(x)        HID_REPORT_ITEM(x, 8, RI_TYPE_GLOBAL, n)
+
+#define HID_REPORT_COUNT(x)       HID_REPORT_ITEM(x, 9, RI_TYPE_GLOBAL, 1)
+#define HID_REPORT_COUNT_N(x, n)  HID_REPORT_ITEM(x, 9, RI_TYPE_GLOBAL, n)
+
+#define HID_PUSH                  HID_REPORT_ITEM(x, 10, RI_TYPE_GLOBAL, 0)
+#define HID_POP                   HID_REPORT_ITEM(x, 11, RI_TYPE_GLOBAL, 0)
+
+//------------- LOCAL ITEMS 6.2.2.8 -------------//
+#define HID_USAGE(x)              HID_REPORT_ITEM(x, 0, RI_TYPE_LOCAL, 1)
+#define HID_USAGE_N(x, n)         HID_REPORT_ITEM(x, 0, RI_TYPE_LOCAL, n)
+
+#define HID_USAGE_MIN(x)          HID_REPORT_ITEM(x, 1, RI_TYPE_LOCAL, 1)
+#define HID_USAGE_MIN_N(x, n)     HID_REPORT_ITEM(x, 1, RI_TYPE_LOCAL, n)
+
+#define HID_USAGE_MAX(x)          HID_REPORT_ITEM(x, 2, RI_TYPE_LOCAL, 1)
+#define HID_USAGE_MAX_N(x, n)     HID_REPORT_ITEM(x, 2, RI_TYPE_LOCAL, n)
+
+//--------------------------------------------------------------------+
+// Usage Table
+//--------------------------------------------------------------------+
+
+/// HID Usage Table - Table 1: Usage Page Summary
+enum {
+  HID_USAGE_PAGE_DESKTOP         = 0x01,
+  HID_USAGE_PAGE_SIMULATE        = 0x02,
+  HID_USAGE_PAGE_VIRTUAL_REALITY = 0x03,
+  HID_USAGE_PAGE_SPORT           = 0x04,
+  HID_USAGE_PAGE_GAME            = 0x05,
+  HID_USAGE_PAGE_GENERIC_DEVICE  = 0x06,
+  HID_USAGE_PAGE_KEYBOARD        = 0x07,
+  HID_USAGE_PAGE_LED             = 0x08,
+  HID_USAGE_PAGE_BUTTON          = 0x09,
+  HID_USAGE_PAGE_ORDINAL         = 0x0a,
+  HID_USAGE_PAGE_TELEPHONY       = 0x0b,
+  HID_USAGE_PAGE_CONSUMER        = 0x0c,
+  HID_USAGE_PAGE_DIGITIZER       = 0x0d,
+  HID_USAGE_PAGE_PID             = 0x0f,
+  HID_USAGE_PAGE_UNICODE         = 0x10,
+  HID_USAGE_PAGE_ALPHA_DISPLAY   = 0x14,
+  HID_USAGE_PAGE_MEDICAL         = 0x40,
+  HID_USAGE_PAGE_MONITOR         = 0x80, //0x80 - 0x83
+  HID_USAGE_PAGE_POWER           = 0x84, // 0x084 - 0x87
+  HID_USAGE_PAGE_BARCODE_SCANNER = 0x8c,
+  HID_USAGE_PAGE_SCALE           = 0x8d,
+  HID_USAGE_PAGE_MSR             = 0x8e,
+  HID_USAGE_PAGE_CAMERA          = 0x90,
+  HID_USAGE_PAGE_ARCADE          = 0x91,
+  HID_USAGE_PAGE_VENDOR          = 0xFFFF // 0xFF00 - 0xFFFF
+};
+
+/// HID Usage Table - Table 6: Generic Desktop Page
+enum {
+  HID_USAGE_DESKTOP_POINTER                               = 0x01,
+  HID_USAGE_DESKTOP_MOUSE                                 = 0x02,
+  HID_USAGE_DESKTOP_JOYSTICK                              = 0x04,
+  HID_USAGE_DESKTOP_GAMEPAD                               = 0x05,
+  HID_USAGE_DESKTOP_KEYBOARD                              = 0x06,
+  HID_USAGE_DESKTOP_KEYPAD                                = 0x07,
+  HID_USAGE_DESKTOP_MULTI_AXIS_CONTROLLER                 = 0x08,
+  HID_USAGE_DESKTOP_TABLET_PC_SYSTEM                      = 0x09,
+  HID_USAGE_DESKTOP_X                                     = 0x30,
+  HID_USAGE_DESKTOP_Y                                     = 0x31,
+  HID_USAGE_DESKTOP_Z                                     = 0x32,
+  HID_USAGE_DESKTOP_RX                                    = 0x33,
+  HID_USAGE_DESKTOP_RY                                    = 0x34,
+  HID_USAGE_DESKTOP_RZ                                    = 0x35,
+  HID_USAGE_DESKTOP_SLIDER                                = 0x36,
+  HID_USAGE_DESKTOP_DIAL                                  = 0x37,
+  HID_USAGE_DESKTOP_WHEEL                                 = 0x38,
+  HID_USAGE_DESKTOP_HAT_SWITCH                            = 0x39,
+  HID_USAGE_DESKTOP_COUNTED_BUFFER                        = 0x3a,
+  HID_USAGE_DESKTOP_BYTE_COUNT                            = 0x3b,
+  HID_USAGE_DESKTOP_MOTION_WAKEUP                         = 0x3c,
+  HID_USAGE_DESKTOP_START                                 = 0x3d,
+  HID_USAGE_DESKTOP_SELECT                                = 0x3e,
+  HID_USAGE_DESKTOP_VX                                    = 0x40,
+  HID_USAGE_DESKTOP_VY                                    = 0x41,
+  HID_USAGE_DESKTOP_VZ                                    = 0x42,
+  HID_USAGE_DESKTOP_VBRX                                  = 0x43,
+  HID_USAGE_DESKTOP_VBRY                                  = 0x44,
+  HID_USAGE_DESKTOP_VBRZ                                  = 0x45,
+  HID_USAGE_DESKTOP_VNO                                   = 0x46,
+  HID_USAGE_DESKTOP_FEATURE_NOTIFICATION                  = 0x47,
+  HID_USAGE_DESKTOP_RESOLUTION_MULTIPLIER                 = 0x48,
+  HID_USAGE_DESKTOP_SYSTEM_CONTROL                        = 0x80,
+  HID_USAGE_DESKTOP_SYSTEM_POWER_DOWN                     = 0x81,
+  HID_USAGE_DESKTOP_SYSTEM_SLEEP                          = 0x82,
+  HID_USAGE_DESKTOP_SYSTEM_WAKE_UP                        = 0x83,
+  HID_USAGE_DESKTOP_SYSTEM_CONTEXT_MENU                   = 0x84,
+  HID_USAGE_DESKTOP_SYSTEM_MAIN_MENU                      = 0x85,
+  HID_USAGE_DESKTOP_SYSTEM_APP_MENU                       = 0x86,
+  HID_USAGE_DESKTOP_SYSTEM_MENU_HELP                      = 0x87,
+  HID_USAGE_DESKTOP_SYSTEM_MENU_EXIT                      = 0x88,
+  HID_USAGE_DESKTOP_SYSTEM_MENU_SELECT                    = 0x89,
+  HID_USAGE_DESKTOP_SYSTEM_MENU_RIGHT                     = 0x8A,
+  HID_USAGE_DESKTOP_SYSTEM_MENU_LEFT                      = 0x8B,
+  HID_USAGE_DESKTOP_SYSTEM_MENU_UP                        = 0x8C,
+  HID_USAGE_DESKTOP_SYSTEM_MENU_DOWN                      = 0x8D,
+  HID_USAGE_DESKTOP_SYSTEM_COLD_RESTART                   = 0x8E,
+  HID_USAGE_DESKTOP_SYSTEM_WARM_RESTART                   = 0x8F,
+  HID_USAGE_DESKTOP_DPAD_UP                               = 0x90,
+  HID_USAGE_DESKTOP_DPAD_DOWN                             = 0x91,
+  HID_USAGE_DESKTOP_DPAD_RIGHT                            = 0x92,
+  HID_USAGE_DESKTOP_DPAD_LEFT                             = 0x93,
+  HID_USAGE_DESKTOP_SYSTEM_DOCK                           = 0xA0,
+  HID_USAGE_DESKTOP_SYSTEM_UNDOCK                         = 0xA1,
+  HID_USAGE_DESKTOP_SYSTEM_SETUP                          = 0xA2,
+  HID_USAGE_DESKTOP_SYSTEM_BREAK                          = 0xA3,
+  HID_USAGE_DESKTOP_SYSTEM_DEBUGGER_BREAK                 = 0xA4,
+  HID_USAGE_DESKTOP_APPLICATION_BREAK                     = 0xA5,
+  HID_USAGE_DESKTOP_APPLICATION_DEBUGGER_BREAK            = 0xA6,
+  HID_USAGE_DESKTOP_SYSTEM_SPEAKER_MUTE                   = 0xA7,
+  HID_USAGE_DESKTOP_SYSTEM_HIBERNATE                      = 0xA8,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_INVERT                 = 0xB0,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_INTERNAL               = 0xB1,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_EXTERNAL               = 0xB2,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_BOTH                   = 0xB3,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_DUAL                   = 0xB4,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_TOGGLE_INT_EXT         = 0xB5,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_SWAP_PRIMARY_SECONDARY = 0xB6,
+  HID_USAGE_DESKTOP_SYSTEM_DISPLAY_LCD_AUTOSCALE          = 0xB7
+};
+
+
+/// HID Usage Table: Consumer Page (0x0C)
+/// Only contains controls that supported by Windows (whole list is too long)
+enum
+{
+  // Generic Control
+  HID_USAGE_CONSUMER_CONTROL                           = 0x0001,
+
+  // Power Control
+  HID_USAGE_CONSUMER_POWER                             = 0x0030,
+  HID_USAGE_CONSUMER_RESET                             = 0x0031,
+  HID_USAGE_CONSUMER_SLEEP                             = 0x0032,
+
+  // Screen Brightness
+  HID_USAGE_CONSUMER_BRIGHTNESS_INCREMENT              = 0x006F,
+  HID_USAGE_CONSUMER_BRIGHTNESS_DECREMENT              = 0x0070,
+
+  // These HID usages operate only on mobile systems (battery powered) and
+  // require Windows 8 (build 8302 or greater).
+  HID_USAGE_CONSUMER_WIRELESS_RADIO_CONTROLS           = 0x000C,
+  HID_USAGE_CONSUMER_WIRELESS_RADIO_BUTTONS            = 0x00C6,
+  HID_USAGE_CONSUMER_WIRELESS_RADIO_LED                = 0x00C7,
+  HID_USAGE_CONSUMER_WIRELESS_RADIO_SLIDER_SWITCH      = 0x00C8,
+
+  // Media Control
+  HID_USAGE_CONSUMER_PLAY_PAUSE                        = 0x00CD,
+  HID_USAGE_CONSUMER_SCAN_NEXT                         = 0x00B5,
+  HID_USAGE_CONSUMER_SCAN_PREVIOUS                     = 0x00B6,
+  HID_USAGE_CONSUMER_STOP                              = 0x00B7,
+  HID_USAGE_CONSUMER_VOLUME                            = 0x00E0,
+  HID_USAGE_CONSUMER_MUTE                              = 0x00E2,
+  HID_USAGE_CONSUMER_BASS                              = 0x00E3,
+  HID_USAGE_CONSUMER_TREBLE                            = 0x00E4,
+  HID_USAGE_CONSUMER_BASS_BOOST                        = 0x00E5,
+  HID_USAGE_CONSUMER_VOLUME_INCREMENT                  = 0x00E9,
+  HID_USAGE_CONSUMER_VOLUME_DECREMENT                  = 0x00EA,
+  HID_USAGE_CONSUMER_BASS_INCREMENT                    = 0x0152,
+  HID_USAGE_CONSUMER_BASS_DECREMENT                    = 0x0153,
+  HID_USAGE_CONSUMER_TREBLE_INCREMENT                  = 0x0154,
+  HID_USAGE_CONSUMER_TREBLE_DECREMENT                  = 0x0155,
+
+  // Application Launcher
+  HID_USAGE_CONSUMER_AL_CONSUMER_CONTROL_CONFIGURATION = 0x0183,
+  HID_USAGE_CONSUMER_AL_EMAIL_READER                   = 0x018A,
+  HID_USAGE_CONSUMER_AL_CALCULATOR                     = 0x0192,
+  HID_USAGE_CONSUMER_AL_LOCAL_BROWSER                  = 0x0194,
+
+  // Browser/Explorer Specific
+  HID_USAGE_CONSUMER_AC_SEARCH                         = 0x0221,
+  HID_USAGE_CONSUMER_AC_HOME                           = 0x0223,
+  HID_USAGE_CONSUMER_AC_BACK                           = 0x0224,
+  HID_USAGE_CONSUMER_AC_FORWARD                        = 0x0225,
+  HID_USAGE_CONSUMER_AC_STOP                           = 0x0226,
+  HID_USAGE_CONSUMER_AC_REFRESH                        = 0x0227,
+  HID_USAGE_CONSUMER_AC_BOOKMARKS                      = 0x022A,
+
+  // Mouse Horizontal scroll
+  HID_USAGE_CONSUMER_AC_PAN                            = 0x0238,
+};
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_HID_H__ */
+
+/// @}
diff --git a/src/class/hid/hid_device.c b/src/class/hid/hid_device.c
new file mode 100644
index 000000000..bd49c157a
--- /dev/null
+++ b/src/class/hid/hid_device.c
@@ -0,0 +1,660 @@
+/**************************************************************************/
+/*!
+    @file     hid_device.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_HID)
+
+#define _TINY_USB_SOURCE_FILE_
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "common/tusb_common.h"
+#include "hid_device.h"
+#include "device/usbd_pvt.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+// Max report len is keyboard's one with 8 byte + 1 byte report id
+#define REPORT_BUFSIZE      12
+
+
+#define ITF_IDX_BOOT_KBD   0
+#define ITF_IDX_BOOT_MSE   ( ITF_IDX_BOOT_KBD + (CFG_TUD_HID_KEYBOARD && CFG_TUD_HID_KEYBOARD_BOOT) )
+#define ITF_IDX_GENERIC    ( ITF_IDX_BOOT_MSE + (CFG_TUD_HID_MOUSE && CFG_TUD_HID_MOUSE_BOOT) )
+#define ITF_COUNT          ( ITF_IDX_GENERIC + 1 )
+
+typedef struct
+{
+  uint8_t itf_num;
+  uint8_t ep_in;
+
+  uint8_t idle_rate; // in unit of 4 ms TODO removed
+  bool    boot_protocol;
+
+  uint16_t desc_len;
+  uint8_t const * desc_report;
+
+  CFG_TUSB_MEM_ALIGN uint8_t report_buf[REPORT_BUFSIZE];
+
+  // callbacks
+  uint16_t (*get_report_cb) (uint8_t report_id, hid_report_type_t type, uint8_t* buffer, uint16_t reqlen);
+  void     (*set_report_cb) (uint8_t report_id, hid_report_type_t type, uint8_t const* buffer, uint16_t bufsize);
+
+}hidd_interface_t;
+
+typedef struct
+{
+  uint8_t usage;     // HID_USAGE_*
+  uint8_t idle_rate; // in unit of 4 ms
+
+  uint8_t report_id;
+  uint8_t report_len;
+
+  hidd_interface_t* itf;
+} hidd_report_t ;
+
+CFG_TUSB_MEM_SECTION static hidd_interface_t _hidd_itf[ITF_COUNT];
+
+
+#if CFG_TUD_HID_KEYBOARD
+static hidd_report_t _kbd_rpt;
+#endif
+
+#if CFG_TUD_HID_MOUSE
+static hidd_report_t _mse_rpt;
+#endif
+
+/*------------- Helpers -------------*/
+
+static inline hidd_interface_t* get_interface_by_itfnum(uint8_t itf_num)
+{
+  for (uint8_t i=0; i < ITF_COUNT; i++ )
+  {
+    if ( itf_num == _hidd_itf[i].itf_num ) return &_hidd_itf[i];
+  }
+
+  return NULL;
+}
+
+
+//--------------------------------------------------------------------+
+// HID GENERIC API
+//--------------------------------------------------------------------+
+bool tud_hid_generic_ready(void)
+{
+  return (_hidd_itf[ITF_IDX_GENERIC].ep_in != 0) && !dcd_edpt_busy(TUD_OPT_RHPORT, _hidd_itf[ITF_IDX_GENERIC].ep_in);
+}
+
+bool tud_hid_generic_report(uint8_t report_id, void const* report, uint8_t len)
+{
+  TU_VERIFY( tud_hid_generic_ready() && (len < REPORT_BUFSIZE) );
+
+  hidd_interface_t * p_hid = &_hidd_itf[ITF_IDX_GENERIC];
+
+  // If report id = 0, skip ID field
+  if (report_id)
+  {
+    p_hid->report_buf[0] = report_id;
+    memcpy(p_hid->report_buf+1, report, len);
+  }else
+  {
+    memcpy(p_hid->report_buf, report, len);
+  }
+
+  // TODO idle rate
+  return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, len + ( report_id ? 1 : 0) );
+}
+
+//--------------------------------------------------------------------+
+// KEYBOARD APPLICATION API
+//--------------------------------------------------------------------+
+#if CFG_TUD_HID_KEYBOARD
+bool tud_hid_keyboard_ready(void)
+{
+  return (_kbd_rpt.itf != NULL) && !dcd_edpt_busy(TUD_OPT_RHPORT, _kbd_rpt.itf->ep_in);
+}
+
+bool tud_hid_keyboard_is_boot_protocol(void)
+{
+  return (_kbd_rpt.itf != NULL) && _kbd_rpt.itf->boot_protocol;
+}
+
+static bool hidd_kbd_report(hid_keyboard_report_t const *p_report)
+{
+  TU_VERIFY( tud_hid_keyboard_ready() );
+
+  hidd_interface_t * p_hid = _kbd_rpt.itf;
+
+  // Idle Rate = 0 : only send report if there is changes, i.e skip duplication
+  // Idle Rate > 0 : skip duplication, but send at least 1 report every idle rate (in unit of 4 ms).
+  //                 If idle time is less than interrupt polling then use the polling.
+  static tu_timeout_t idle_tm = { 0, 0 };
+
+  if ( (_kbd_rpt.idle_rate == 0) || !tu_timeout_expired(&idle_tm) )
+  {
+    if ( 0 == memcmp(p_hid->report_buf, p_report, sizeof(hid_keyboard_report_t)) ) return true;
+  }
+
+  tu_timeout_set(&idle_tm, _kbd_rpt.idle_rate * 4);
+
+  memcpy(p_hid->report_buf, p_report, sizeof(hid_keyboard_report_t));
+  return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, sizeof(hid_keyboard_report_t));
+}
+
+bool tud_hid_keyboard_keycode(uint8_t modifier, uint8_t keycode[6])
+{
+  hid_keyboard_report_t report = { .modifier = modifier };
+
+  if ( keycode )
+  {
+    memcpy(report.keycode, keycode, 6);
+  }else
+  {
+    tu_memclr(report.keycode, 6);
+  }
+
+  return hidd_kbd_report(&report);
+}
+
+#if CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP
+
+bool tud_hid_keyboard_key_press(char ch)
+{
+  uint8_t keycode[6] = { 0 };
+  uint8_t modifier   = 0;
+
+  if ( HID_ASCII_TO_KEYCODE[(uint8_t)ch].shift ) modifier = KEYBOARD_MODIFIER_LEFTSHIFT;
+  keycode[0] = HID_ASCII_TO_KEYCODE[(uint8_t)ch].keycode;
+
+  return tud_hid_keyboard_keycode(modifier, keycode);
+}
+
+bool tud_hid_keyboard_key_sequence(const char* str, uint32_t interval_ms)
+{
+  // Send each key in string
+  char ch;
+  while( (ch = *str++) != 0 )
+  {
+    char lookahead = *str;
+
+    tud_hid_keyboard_key_press(ch);
+
+    // Blocking delay
+    tu_timeout_wait(interval_ms);
+
+    /* Only need to empty report if the next character is NULL or the same with
+     * the current one, else no need to send */
+    if ( lookahead == ch || lookahead == 0 )
+    {
+      tud_hid_keyboard_key_release();
+      tu_timeout_wait(interval_ms);
+    }
+  }
+
+  return true;
+}
+
+#endif // CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP
+
+#endif // CFG_TUD_HID_KEYBOARD
+
+//--------------------------------------------------------------------+
+// MOUSE APPLICATION API
+//--------------------------------------------------------------------+
+#if CFG_TUD_HID_MOUSE
+
+bool tud_hid_mouse_ready(void)
+{
+  return (_mse_rpt.itf != NULL) && !dcd_edpt_busy(TUD_OPT_RHPORT, _mse_rpt.itf->ep_in);
+}
+
+bool tud_hid_mouse_is_boot_protocol(void)
+{
+  return (_mse_rpt.itf != NULL) && _mse_rpt.itf->boot_protocol;
+}
+
+static bool hidd_mouse_report(hid_mouse_report_t const *p_report)
+{
+  TU_VERIFY( tud_hid_mouse_ready() );
+
+  hidd_interface_t * p_hid = _mse_rpt.itf;
+  memcpy(p_hid->report_buf, p_report, sizeof(hid_mouse_report_t));
+
+  return dcd_edpt_xfer(TUD_OPT_RHPORT, p_hid->ep_in, p_hid->report_buf, sizeof(hid_mouse_report_t));
+}
+
+bool tud_hid_mouse_data(uint8_t buttons, int8_t x, int8_t y, int8_t scroll, int8_t pan)
+{
+  hid_mouse_report_t report =
+  {
+      .buttons = buttons,
+      .x       = x,
+      .y       = y,
+      .wheel   = scroll,
+//      .pan     = pan
+  };
+
+  return hidd_mouse_report( &report );
+}
+
+bool tud_hid_mouse_move(int8_t x, int8_t y)
+{
+  TU_VERIFY( tud_hid_mouse_ready() );
+
+  hidd_interface_t * p_hid = _mse_rpt.itf;
+  uint8_t prev_buttons = p_hid->report_buf[0];
+
+  return tud_hid_mouse_data(prev_buttons, x, y, 0, 0);
+}
+
+bool tud_hid_mouse_scroll(int8_t vertical, int8_t horizontal)
+{
+  TU_VERIFY( tud_hid_mouse_ready() );
+
+  hidd_interface_t * p_hid =  _mse_rpt.itf;
+  uint8_t prev_buttons = p_hid->report_buf[0];
+
+  return tud_hid_mouse_data(prev_buttons, 0, 0, vertical, horizontal);
+}
+
+#endif // CFG_TUD_HID_MOUSE
+
+//--------------------------------------------------------------------+
+// USBD-CLASS API
+//--------------------------------------------------------------------+
+void hidd_init(void)
+{
+  hidd_reset(TUD_OPT_RHPORT);
+}
+
+void hidd_reset(uint8_t rhport)
+{
+  tu_memclr(_hidd_itf, sizeof(_hidd_itf));
+
+  #if CFG_TUD_HID_KEYBOARD
+  tu_varclr(&_kbd_rpt);
+  #endif
+
+  #if CFG_TUD_HID_MOUSE
+  tu_varclr(&_mse_rpt);
+  #endif
+}
+
+bool hidd_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t *p_len)
+{
+  uint8_t const *p_desc = (uint8_t const *) desc_itf;
+
+  // TODO support HID OUT Endpoint
+  TU_ASSERT(desc_itf->bNumEndpoints == 1);
+
+  //------------- HID descriptor -------------//
+  p_desc = tu_desc_next(p_desc);
+  tusb_hid_descriptor_hid_t const *desc_hid = (tusb_hid_descriptor_hid_t const *) p_desc;
+  TU_ASSERT(HID_DESC_TYPE_HID == desc_hid->bDescriptorType);
+
+  //------------- Endpoint Descriptor -------------//
+  p_desc = tu_desc_next(p_desc);
+  tusb_desc_endpoint_t const *desc_edpt = (tusb_desc_endpoint_t const *) p_desc;
+  TU_ASSERT(TUSB_DESC_ENDPOINT == desc_edpt->bDescriptorType);
+
+  hidd_interface_t * p_hid = NULL;
+
+  /*------------- Boot protocol only keyboard & mouse -------------*/
+  if (desc_itf->bInterfaceSubClass == HID_SUBCLASS_BOOT)
+  {
+    TU_ASSERT(desc_itf->bInterfaceProtocol == HID_PROTOCOL_KEYBOARD || desc_itf->bInterfaceProtocol == HID_PROTOCOL_MOUSE,  ERR_TUD_INVALID_DESCRIPTOR);
+
+    #if CFG_TUD_HID_KEYBOARD && CFG_TUD_HID_KEYBOARD_BOOT
+    if (desc_itf->bInterfaceProtocol == HID_PROTOCOL_KEYBOARD)
+    {
+      p_hid = &_hidd_itf[ITF_IDX_BOOT_KBD];
+      p_hid->desc_report   = usbd_desc_set->hid_report.boot_keyboard;
+      p_hid->get_report_cb = tud_hid_keyboard_get_report_cb;
+      p_hid->set_report_cb = tud_hid_keyboard_set_report_cb;
+
+      hidd_report_t* report = &_kbd_rpt;
+      report->usage = HID_USAGE_DESKTOP_KEYBOARD;
+      report->report_id = 0;
+      report->report_len = 8;
+      report->itf = p_hid;
+    }
+    #endif
+
+    #if CFG_TUD_HID_MOUSE && CFG_TUD_HID_MOUSE_BOOT
+    if (desc_itf->bInterfaceProtocol == HID_PROTOCOL_MOUSE)
+    {
+      p_hid = &_hidd_itf[ITF_IDX_BOOT_MSE];
+      p_hid->desc_report   = usbd_desc_set->hid_report.boot_mouse;
+      p_hid->get_report_cb = tud_hid_mouse_get_report_cb;
+      p_hid->set_report_cb = tud_hid_mouse_set_report_cb;
+
+      hidd_report_t* report = &_mse_rpt;
+      report->usage = HID_USAGE_DESKTOP_MOUSE;
+      report->report_id = 0;
+      report->report_len = 4;
+      report->itf = p_hid;
+    }
+    #endif
+
+    TU_ASSERT(p_hid);
+    p_hid->boot_protocol = true; // default mode is BOOT
+  }
+  /*------------- Generic (multiple report) -------------*/
+  else
+  {
+    // TODO parse report ID for keyboard, mouse
+    p_hid = &_hidd_itf[ITF_IDX_GENERIC];
+
+    p_hid->desc_report   = usbd_desc_set->hid_report.generic;
+    p_hid->get_report_cb = tud_hid_generic_get_report_cb;
+    p_hid->set_report_cb = tud_hid_generic_set_report_cb;
+  }
+
+  TU_ASSERT(p_hid->desc_report);
+  TU_ASSERT(dcd_edpt_open(rhport, desc_edpt));
+
+  p_hid->itf_num   = desc_itf->bInterfaceNumber;
+  p_hid->ep_in     = desc_edpt->bEndpointAddress;
+  p_hid->desc_len  = desc_hid->wReportLength;
+
+  *p_len = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
+
+  return true;
+}
+
+// Handle class control request
+// return false to stall control endpoint (e.g unsupported request)
+bool hidd_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  hidd_interface_t* p_hid = get_interface_by_itfnum( (uint8_t) p_request->wIndex );
+  TU_ASSERT(p_hid);
+
+  if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_STANDARD)
+  {
+    //------------- STD Request -------------//
+    uint8_t const desc_type  = tu_u16_high(p_request->wValue);
+    uint8_t const desc_index = tu_u16_low (p_request->wValue);
+    (void) desc_index;
+
+    if (p_request->bRequest == TUSB_REQ_GET_DESCRIPTOR && desc_type == HID_DESC_TYPE_REPORT)
+    {
+      usbd_control_xfer(rhport, p_request, (void *)p_hid->desc_report, p_hid->desc_len);
+    }else
+    {
+      return false; // stall unsupported request
+    }
+  }
+  else if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS)
+  {
+    //------------- Class Specific Request -------------//
+    switch( p_request->bRequest )
+    {
+      case HID_REQ_CONTROL_GET_REPORT:
+      {
+        // wValue = Report Type | Report ID
+        uint8_t const report_type = tu_u16_high(p_request->wValue);
+        uint8_t const report_id   = tu_u16_low(p_request->wValue);
+
+        uint16_t xferlen;
+        if ( p_hid->get_report_cb )
+        {
+          xferlen = p_hid->get_report_cb(report_id, (hid_report_type_t) report_type, p_hid->report_buf, p_request->wLength);
+        }else
+        {
+          // For boot Interface only: re-use report_buf -> report has no change
+          xferlen = p_request->wLength;
+        }
+
+        TU_ASSERT( xferlen > 0 );
+        usbd_control_xfer(rhport, p_request, p_hid->report_buf, xferlen);
+      }
+      break;
+
+      case  HID_REQ_CONTROL_SET_REPORT:
+        usbd_control_xfer(rhport, p_request, p_hid->report_buf, p_request->wLength);
+      break;
+
+      case HID_REQ_CONTROL_SET_IDLE:
+        // TODO idle rate of report
+        p_hid->idle_rate = tu_u16_high(p_request->wValue);
+        usbd_control_status(rhport, p_request);
+      break;
+
+      case HID_REQ_CONTROL_GET_IDLE:
+        // TODO idle rate of report
+        usbd_control_xfer(rhport, p_request, &p_hid->idle_rate, 1);
+      break;
+
+      case HID_REQ_CONTROL_GET_PROTOCOL:
+      {
+        uint8_t protocol = 1-p_hid->boot_protocol;   // 0 is Boot, 1 is Report protocol
+        usbd_control_xfer(rhport, p_request, &protocol, 1);
+      }
+      break;
+
+      case HID_REQ_CONTROL_SET_PROTOCOL:
+        p_hid->boot_protocol = 1 - p_request->wValue; // 0 is Boot, 1 is Report protocol
+        usbd_control_status(rhport, p_request);
+      break;
+
+      default: return false; // stall unsupported request
+    }
+  }else
+  {
+    return false; // stall unsupported request
+  }
+
+  return true;
+}
+
+// Invoked when class request DATA stage is finished.
+// return false to stall control endpoint (e.g Host send non-sense DATA)
+bool hidd_control_request_complete(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  hidd_interface_t* p_hid = get_interface_by_itfnum( (uint8_t) p_request->wIndex );
+  TU_ASSERT(p_hid);
+
+  if (p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS &&
+      p_request->bRequest == HID_REQ_CONTROL_SET_REPORT)
+  {
+    // wValue = Report Type | Report ID
+    uint8_t const report_type = tu_u16_high(p_request->wValue);
+    uint8_t const report_id   = tu_u16_low(p_request->wValue);
+
+    if ( p_hid->set_report_cb )
+    {
+      p_hid->set_report_cb(report_id, (hid_report_type_t) report_type, p_hid->report_buf, p_request->wLength);
+    }
+  }
+
+  return true;
+}
+
+bool hidd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
+{
+  // nothing to do
+  return true;
+}
+
+
+/*------------------------------------------------------------------*/
+/* Ascii to Keycode
+ *------------------------------------------------------------------*/
+#if CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP
+
+const hid_ascii_to_keycode_entry_t HID_ASCII_TO_KEYCODE[128] =
+{
+    {0, 0                     }, // 0x00 Null
+    {0, 0                     }, // 0x01
+    {0, 0                     }, // 0x02
+    {0, 0                     }, // 0x03
+    {0, 0                     }, // 0x04
+    {0, 0                     }, // 0x05
+    {0, 0                     }, // 0x06
+    {0, 0                     }, // 0x07
+    {0, HID_KEY_BACKSPACE     }, // 0x08 Backspace
+    {0, HID_KEY_TAB           }, // 0x09 Horizontal Tab
+    {0, HID_KEY_RETURN        }, // 0x0A Line Feed
+    {0, 0                     }, // 0x0B
+    {0, 0                     }, // 0x0C
+    {0, HID_KEY_RETURN        }, // 0x0D Carriage return
+    {0, 0                     }, // 0x0E
+    {0, 0                     }, // 0x0F
+    {0, 0                     }, // 0x10
+    {0, 0                     }, // 0x11
+    {0, 0                     }, // 0x12
+    {0, 0                     }, // 0x13
+    {0, 0                     }, // 0x14
+    {0, 0                     }, // 0x15
+    {0, 0                     }, // 0x16
+    {0, 0                     }, // 0x17
+    {0, 0                     }, // 0x18
+    {0, 0                     }, // 0x19
+    {0, 0                     }, // 0x1A
+    {0, HID_KEY_ESCAPE        }, // 0x1B Escape
+    {0, 0                     }, // 0x1C
+    {0, 0                     }, // 0x1D
+    {0, 0                     }, // 0x1E
+    {0, 0                     }, // 0x1F
+
+    {0, HID_KEY_SPACE         }, // 0x20
+    {1, HID_KEY_1             }, // 0x21 !
+    {1, HID_KEY_APOSTROPHE    }, // 0x22 "
+    {1, HID_KEY_3             }, // 0x23 #
+    {1, HID_KEY_4             }, // 0x24 $
+    {1, HID_KEY_5             }, // 0x25 %
+    {1, HID_KEY_7             }, // 0x26 &
+    {0, HID_KEY_APOSTROPHE    }, // 0x27 '
+    {1, HID_KEY_9             }, // 0x28 (
+    {1, HID_KEY_0             }, // 0x29 )
+    {1, HID_KEY_8             }, // 0x2A *
+    {1, HID_KEY_EQUAL         }, // 0x2B +
+    {0, HID_KEY_COMMA         }, // 0x2C ,
+    {0, HID_KEY_MINUS         }, // 0x2D -
+    {0, HID_KEY_PERIOD        }, // 0x2E .
+    {0, HID_KEY_SLASH         }, // 0x2F /
+    {0, HID_KEY_0             }, // 0x30 0
+    {0, HID_KEY_1             }, // 0x31 1
+    {0, HID_KEY_2             }, // 0x32 2
+    {0, HID_KEY_3             }, // 0x33 3
+    {0, HID_KEY_4             }, // 0x34 4
+    {0, HID_KEY_5             }, // 0x35 5
+    {0, HID_KEY_6             }, // 0x36 6
+    {0, HID_KEY_7             }, // 0x37 7
+    {0, HID_KEY_8             }, // 0x38 8
+    {0, HID_KEY_9             }, // 0x39 9
+    {1, HID_KEY_SEMICOLON     }, // 0x3A :
+    {0, HID_KEY_SEMICOLON     }, // 0x3B ;
+    {1, HID_KEY_COMMA         }, // 0x3C <
+    {0, HID_KEY_EQUAL         }, // 0x3D =
+    {1, HID_KEY_PERIOD        }, // 0x3E >
+    {1, HID_KEY_SLASH         }, // 0x3F ?
+
+    {1, HID_KEY_2             }, // 0x40 @
+    {1, HID_KEY_A             }, // 0x41 A
+    {1, HID_KEY_B             }, // 0x42 B
+    {1, HID_KEY_C             }, // 0x43 C
+    {1, HID_KEY_D             }, // 0x44 D
+    {1, HID_KEY_E             }, // 0x45 E
+    {1, HID_KEY_F             }, // 0x46 F
+    {1, HID_KEY_G             }, // 0x47 G
+    {1, HID_KEY_H             }, // 0x48 H
+    {1, HID_KEY_I             }, // 0x49 I
+    {1, HID_KEY_J             }, // 0x4A J
+    {1, HID_KEY_K             }, // 0x4B K
+    {1, HID_KEY_L             }, // 0x4C L
+    {1, HID_KEY_M             }, // 0x4D M
+    {1, HID_KEY_N             }, // 0x4E N
+    {1, HID_KEY_O             }, // 0x4F O
+    {1, HID_KEY_P             }, // 0x50 P
+    {1, HID_KEY_Q             }, // 0x51 Q
+    {1, HID_KEY_R             }, // 0x52 R
+    {1, HID_KEY_S             }, // 0x53 S
+    {1, HID_KEY_T             }, // 0x55 T
+    {1, HID_KEY_U             }, // 0x55 U
+    {1, HID_KEY_V             }, // 0x56 V
+    {1, HID_KEY_W             }, // 0x57 W
+    {1, HID_KEY_X             }, // 0x58 X
+    {1, HID_KEY_Y             }, // 0x59 Y
+    {1, HID_KEY_Z             }, // 0x5A Z
+    {0, HID_KEY_BRACKET_LEFT  }, // 0x5B [
+    {0, HID_KEY_BACKSLASH     }, // 0x5C '\'
+    {0, HID_KEY_BRACKET_RIGHT }, // 0x5D ]
+    {1, HID_KEY_6             }, // 0x5E ^
+    {1, HID_KEY_MINUS         }, // 0x5F _
+
+    {0, HID_KEY_GRAVE         }, // 0x60 `
+    {0, HID_KEY_A             }, // 0x61 a
+    {0, HID_KEY_B             }, // 0x62 b
+    {0, HID_KEY_C             }, // 0x63 c
+    {0, HID_KEY_D             }, // 0x66 d
+    {0, HID_KEY_E             }, // 0x65 e
+    {0, HID_KEY_F             }, // 0x66 f
+    {0, HID_KEY_G             }, // 0x67 g
+    {0, HID_KEY_H             }, // 0x68 h
+    {0, HID_KEY_I             }, // 0x69 i
+    {0, HID_KEY_J             }, // 0x6A j
+    {0, HID_KEY_K             }, // 0x6B k
+    {0, HID_KEY_L             }, // 0x6C l
+    {0, HID_KEY_M             }, // 0x6D m
+    {0, HID_KEY_N             }, // 0x6E n
+    {0, HID_KEY_O             }, // 0x6F o
+    {0, HID_KEY_P             }, // 0x70 p
+    {0, HID_KEY_Q             }, // 0x71 q
+    {0, HID_KEY_R             }, // 0x72 r
+    {0, HID_KEY_S             }, // 0x73 s
+    {0, HID_KEY_T             }, // 0x75 t
+    {0, HID_KEY_U             }, // 0x75 u
+    {0, HID_KEY_V             }, // 0x76 v
+    {0, HID_KEY_W             }, // 0x77 w
+    {0, HID_KEY_X             }, // 0x78 x
+    {0, HID_KEY_Y             }, // 0x79 y
+    {0, HID_KEY_Z             }, // 0x7A z
+    {1, HID_KEY_BRACKET_LEFT  }, // 0x7B {
+    {1, HID_KEY_BACKSLASH     }, // 0x7C |
+    {1, HID_KEY_BRACKET_RIGHT }, // 0x7D }
+    {1, HID_KEY_GRAVE         }, // 0x7E ~
+    {0, HID_KEY_DELETE        }  // 0x7F Delete
+};
+
+#endif
+
+#endif
diff --git a/src/class/hid/hid_device.h b/src/class/hid/hid_device.h
new file mode 100644
index 000000000..885f33443
--- /dev/null
+++ b/src/class/hid/hid_device.h
@@ -0,0 +1,393 @@
+/**************************************************************************/
+/*!
+    @file     hid_device.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#ifndef _TUSB_HID_DEVICE_H_
+#define _TUSB_HID_DEVICE_H_
+
+#include "common/tusb_common.h"
+#include "device/usbd.h"
+#include "hid.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// Class Driver Default Configure & Validation
+//--------------------------------------------------------------------+
+#ifndef CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP
+#define CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP 0
+#endif
+
+#if !CFG_TUD_HID_KEYBOARD && CFG_TUD_HID_KEYBOARD_BOOT
+#error CFG_TUD_HID_KEYBOARD must be enabled
+#endif
+
+#if !CFG_TUD_HID_MOUSE && CFG_TUD_HID_MOUSE_BOOT
+#error CFG_TUD_HID_MOUSE must be enabled
+#endif
+
+
+//--------------------------------------------------------------------+
+// HID GENERIC API
+//--------------------------------------------------------------------+
+bool tud_hid_generic_ready(void);
+bool tud_hid_generic_report(uint8_t report_id, void const* report, uint8_t len);
+
+/*------------- Callbacks (Weak is optional) -------------*/
+uint16_t tud_hid_generic_get_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen);
+void     tud_hid_generic_set_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize);
+
+//--------------------------------------------------------------------+
+// KEYBOARD API
+//--------------------------------------------------------------------+
+#if CFG_TUD_HID_KEYBOARD
+/** \addtogroup ClassDriver_HID_Keyboard Keyboard
+ *  @{ */
+/** \defgroup Keyboard_Device Device
+ *  @{ */
+
+/** Check if the interface is ready to use
+ * \returns true if ready, otherwise interface may not be mounted or still busy transferring data
+ * \note    Application must not perform any action if the interface is not ready
+ */
+bool tud_hid_keyboard_ready(void);
+bool tud_hid_keyboard_is_boot_protocol(void);
+
+bool tud_hid_keyboard_keycode(uint8_t modifier, uint8_t keycode[6]);
+
+static inline bool tud_hid_keyboard_key_release(void) { return tud_hid_keyboard_keycode(0, NULL); }
+
+#if CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP
+bool tud_hid_keyboard_key_press(char ch);
+bool tud_hid_keyboard_key_sequence(const char* str, uint32_t interval_ms);
+
+typedef struct{
+  uint8_t shift;
+  uint8_t keycode;
+}hid_ascii_to_keycode_entry_t;
+extern const hid_ascii_to_keycode_entry_t HID_ASCII_TO_KEYCODE[128];
+#endif
+
+#endif
+
+/*------------- Callbacks (Weak is optional) -------------*/
+
+/** Callback invoked when USB host request \ref HID_REQ_CONTROL_GET_REPORT.
+ * \param[in]   report_type specify which report (INPUT, OUTPUT, FEATURE) that host requests
+ * \param[out]  buffer data that application need to update, value must be accessible by USB controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \param[in]   reqlen  number of bytes that host requested
+ * \retval      non-zero Actual number of bytes in the response's buffer.
+ * \retval      zero  indicates the current request is not supported. Tinyusb device stack will reject the request by
+ *              sending STALL in the data phase.
+ * \note        After this callback, the request is silently executed by the tinyusb stack, thus
+ *              the completion of this control request will not be reported to application.
+ *              For Keyboard, USB host often uses this to turn on/off the LED for CAPLOCKS, NUMLOCK (\ref hid_keyboard_led_bm_t)
+ */
+ATTR_WEAK uint16_t tud_hid_keyboard_get_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen);
+
+/** Callback invoked when USB host request \ref HID_REQ_CONTROL_SET_REPORT.
+ * \param[in]   report_type specify which report (INPUT, OUTPUT, FEATURE) that host requests
+ * \param[in]   buffer  containing the report's data
+ * \param[in]   bufsize  number of bytes in the \a buffer
+ * \note        By the time this callback is invoked, the USB control transfer is already completed in the hardware side.
+ *              Application are free to handle data at its own will.
+ */
+ATTR_WEAK void tud_hid_keyboard_set_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize);
+
+
+//ATTR_WEAK void tud_hid_keyboard_set_protocol_cb(bool boot_protocol);
+
+/** @} */
+/** @} */
+
+//--------------------------------------------------------------------+
+// MOUSE API
+//--------------------------------------------------------------------+
+#if CFG_TUD_HID_MOUSE
+/** \addtogroup ClassDriver_HID_Mouse Mouse
+ *  @{ */
+/** \defgroup Mouse_Device Device
+ *  @{ */
+
+/** \brief      Check if the interface is currently busy or not
+ * \retval      true if the interface is busy meaning the stack is still transferring/waiting data from/to host
+ * \retval      false if the interface is not busy meaning the stack successfully transferred data from/to host
+ * \note        This function is primarily used for polling/waiting result after \ref tusbd_hid_mouse_send.
+ */
+bool tud_hid_mouse_ready(void);
+bool tud_hid_mouse_is_boot_protocol(void);
+
+bool tud_hid_mouse_data(uint8_t buttons, int8_t x, int8_t y, int8_t scroll, int8_t pan);
+
+bool tud_hid_mouse_move(int8_t x, int8_t y);
+bool tud_hid_mouse_scroll(int8_t vertical, int8_t horizontal);
+
+static inline bool tud_hid_mouse_button_press(uint8_t buttons)
+{
+  return tud_hid_mouse_data(buttons, 0, 0, 0, 0);
+}
+
+static inline bool tud_hid_mouse_button_release(void)
+{
+  return tud_hid_mouse_data(0, 0, 0, 0, 0);
+}
+
+/*------------- Callbacks (Weak is optional) -------------*/
+
+/**
+ * Callback function that is invoked when USB host request \ref HID_REQ_CONTROL_GET_REPORT.
+ * \param[in]   report_type specify which report (INPUT, OUTPUT, FEATURE) that host requests
+ * \param[out]  buffer  buffer that application need to update, value must be accessible by USB controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \param[in]   reqlen  number of bytes that host requested
+ * \retval      non-zero Actual number of bytes in the response's buffer.
+ * \retval      zero  indicates the current request is not supported. Tinyusb device stack will reject the request by
+ *              sending STALL in the data phase.
+ * \note        After this callback, the request is silently executed by the tinyusb stack, thus
+ *              the completion of this control request will not be reported to application
+ */
+ATTR_WEAK uint16_t tud_hid_mouse_get_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen);
+
+/**
+ * Callback function that is invoked when USB host request \ref HID_REQ_CONTROL_SET_REPORT.
+ * \param[in]   report_type specify which report (INPUT, OUTPUT, FEATURE) that host requests
+ * \param[in]   buffer buffer containing the report's data
+ * \param[in]   bufsize  number of bytes in the \a p_report_data
+ * \note        By the time this callback is invoked, the USB control transfer is already completed in the hardware side.
+ *              Application are free to handle data at its own will.
+ */
+ATTR_WEAK void tud_hid_mouse_set_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize);
+
+//ATTR_WEAK void tud_hid_mouse_set_protocol_cb(bool boot_protocol);
+
+#endif
+
+
+//--------------------------------------------------------------------+
+// HID Report Descriptor Template
+//--------------------------------------------------------------------+
+/* These template should be used as follow
+ * - Only 1 report : no parameter
+ *      uint8_t report_desc[] = { ID_REPORT_DESC_KEYBOARD() };
+ *
+ * - Multiple Reports: "HID_REPORT_ID(ID)," must be passed to template
+ *      uint8_t report_desc[] = {
+ *          ID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(1) ,) ,
+ *          HID_REPORT_DESC_MOUSE  ( HID_REPORT_ID(2) ,)
+ *      };
+ */
+
+/*------------- Keyboard Descriptor Template -------------*/
+#define HID_REPORT_DESC_KEYBOARD(...) \
+  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP     )                    ,\
+  HID_USAGE      ( HID_USAGE_DESKTOP_KEYBOARD )                    ,\
+  HID_COLLECTION ( HID_COLLECTION_APPLICATION )                    ,\
+    /* 8 bits Modifier Keys (Shfit, Control, Alt) */ \
+    __VA_ARGS__ \
+    HID_USAGE_PAGE ( HID_USAGE_PAGE_KEYBOARD )                     ,\
+      HID_USAGE_MIN    ( 224                                    )  ,\
+      HID_USAGE_MAX    ( 231                                    )  ,\
+      HID_LOGICAL_MIN  ( 0                                      )  ,\
+      HID_LOGICAL_MAX  ( 1                                      )  ,\
+      HID_REPORT_COUNT ( 8                                      )  ,\
+      HID_REPORT_SIZE  ( 1                                      )  ,\
+      HID_INPUT        ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE )  ,\
+      /* 8 bit reserved */ \
+      HID_REPORT_COUNT ( 1                                      )  ,\
+      HID_REPORT_SIZE  ( 8                                      )  ,\
+      HID_INPUT        ( HID_CONSTANT                           )  ,\
+    /* 6-byte Keycodes */ \
+    HID_USAGE_PAGE ( HID_USAGE_PAGE_KEYBOARD )                     ,\
+      HID_USAGE_MIN    ( 0                                   )     ,\
+      HID_USAGE_MAX    ( 255                                 )     ,\
+      HID_LOGICAL_MIN  ( 0                                   )     ,\
+      HID_LOGICAL_MAX  ( 255                                 )     ,\
+      HID_REPORT_COUNT ( 6                                   )     ,\
+      HID_REPORT_SIZE  ( 8                                   )     ,\
+      HID_INPUT        ( HID_DATA | HID_ARRAY | HID_ABSOLUTE )     ,\
+    /* 5-bit LED Indicator Kana | Compose | ScrollLock | CapsLock | NumLock */ \
+    HID_USAGE_PAGE  ( HID_USAGE_PAGE_LED                   )       ,\
+      HID_USAGE_MIN    ( 1                                       ) ,\
+      HID_USAGE_MAX    ( 5                                       ) ,\
+      HID_REPORT_COUNT ( 5                                       ) ,\
+      HID_REPORT_SIZE  ( 1                                       ) ,\
+      HID_OUTPUT       ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE  ) ,\
+      /* led padding */ \
+      HID_REPORT_COUNT ( 1                                       ) ,\
+      HID_REPORT_SIZE  ( 3                                       ) ,\
+      HID_OUTPUT       ( HID_CONSTANT                            ) ,\
+  HID_COLLECTION_END \
+
+/*------------- Mouse Descriptor Template -------------*/
+#define HID_REPORT_DESC_MOUSE(...) \
+  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP      )                    ,\
+  HID_USAGE      ( HID_USAGE_DESKTOP_MOUSE     )                    ,\
+  HID_COLLECTION ( HID_COLLECTION_APPLICATION  )                    ,\
+    __VA_ARGS__ \
+    HID_USAGE      ( HID_USAGE_DESKTOP_POINTER )                    ,\
+    HID_COLLECTION ( HID_COLLECTION_PHYSICAL   )                    ,\
+      HID_USAGE_PAGE  ( HID_USAGE_PAGE_BUTTON  )                    ,\
+        HID_USAGE_MIN    ( 1                                      ) ,\
+        HID_USAGE_MAX    ( 3                                      ) ,\
+        HID_LOGICAL_MIN  ( 0                                      ) ,\
+        HID_LOGICAL_MAX  ( 1                                      ) ,\
+        /* Left, Right, Middle, Backward, Forward mouse buttons */   \
+        HID_REPORT_COUNT ( 3                                      ) ,\
+        HID_REPORT_SIZE  ( 1                                      ) ,\
+        HID_INPUT        ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
+        /* 3 bit padding */ \
+        HID_REPORT_COUNT ( 1                                      ) ,\
+        HID_REPORT_SIZE  ( 5                                      ) ,\
+        HID_INPUT        ( HID_CONSTANT                           ) ,\
+      HID_USAGE_PAGE  ( HID_USAGE_PAGE_DESKTOP )                    ,\
+        /* X, Y position [-127, 127] */ \
+        HID_USAGE        ( HID_USAGE_DESKTOP_X                    ) ,\
+        HID_USAGE        ( HID_USAGE_DESKTOP_Y                    ) ,\
+        HID_LOGICAL_MIN  ( 0x81                                   ) ,\
+        HID_LOGICAL_MAX  ( 0x7f                                   ) ,\
+        HID_REPORT_COUNT ( 2                                      ) ,\
+        HID_REPORT_SIZE  ( 8                                      ) ,\
+        HID_INPUT        ( HID_DATA | HID_VARIABLE | HID_RELATIVE ) ,\
+        /* Mouse scroll [-127, 127] */ \
+        HID_USAGE       ( HID_USAGE_DESKTOP_WHEEL                )  ,\
+        HID_LOGICAL_MIN ( 0x81                                   )  ,\
+        HID_LOGICAL_MAX ( 0x7f                                   )  ,\
+        HID_REPORT_COUNT( 1                                      )  ,\
+        HID_REPORT_SIZE ( 8                                      )  ,\
+        HID_INPUT       ( HID_DATA | HID_VARIABLE | HID_RELATIVE )  ,\
+    HID_COLLECTION_END                                              ,\
+  HID_COLLECTION_END \
+
+//------------- Consumer Control Report Template -------------//
+#define HID_REPORT_DESC_CONSUMER(...) \
+  HID_USAGE_PAGE ( HID_USAGE_PAGE_CONSUMER    )              ,\
+  HID_USAGE      ( HID_USAGE_CONSUMER_CONTROL )              ,\
+  HID_COLLECTION ( HID_COLLECTION_APPLICATION )              ,\
+    __VA_ARGS__ \
+    HID_LOGICAL_MIN  ( 0x00                                ) ,\
+    HID_LOGICAL_MAX_N( 0x03FF, 2                           ) ,\
+    HID_USAGE_MIN    ( 0x00                                ) ,\
+    HID_USAGE_MAX_N  ( 0x03FF, 2                           ) ,\
+    HID_REPORT_COUNT ( 1                                   ) ,\
+    HID_REPORT_SIZE  ( 16                                  ) ,\
+    HID_INPUT        ( HID_DATA | HID_ARRAY | HID_ABSOLUTE ) ,\
+  HID_COLLECTION_END \
+
+//------------- System Control Report Template -------------//
+/* 0x00 - do nothing
+ * 0x01 - Power Off
+ * 0x02 - Standby
+ * 0x04 - Wake Host
+ */
+#define HID_REPORT_DESC_SYSTEM_CONTROL(...) \
+  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP           )        ,\
+  HID_USAGE      ( HID_USAGE_DESKTOP_SYSTEM_CONTROL )        ,\
+  HID_COLLECTION ( HID_COLLECTION_APPLICATION       )        ,\
+    __VA_ARGS__ \
+    /* 2 bit system power control */ \
+    HID_LOGICAL_MIN  ( 1                                   ) ,\
+    HID_LOGICAL_MAX  ( 3                                   ) ,\
+    HID_REPORT_COUNT ( 1                                   ) ,\
+    HID_REPORT_SIZE  ( 2                                   ) ,\
+    HID_USAGE        ( HID_USAGE_DESKTOP_SYSTEM_SLEEP      ) ,\
+    HID_USAGE        ( HID_USAGE_DESKTOP_SYSTEM_POWER_DOWN ) ,\
+    HID_USAGE        ( HID_USAGE_DESKTOP_SYSTEM_WAKE_UP    ) ,\
+    HID_INPUT        ( HID_DATA | HID_ARRAY | HID_ABSOLUTE ) ,\
+    /* 6 bit padding */ \
+    HID_REPORT_COUNT ( 1                                   ) ,\
+    HID_REPORT_SIZE  ( 6                                   ) ,\
+    HID_INPUT        ( HID_CONSTANT                        ) ,\
+  HID_COLLECTION_END \
+
+//------------- Gamepad Report Template -------------//
+// Gamepad with 16 buttons and 2 joysticks
+// | Button Map (2 bytes) |  X | Y | Z | Rz
+#define HID_REPORT_DESC_GAMEPAD(...) \
+  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP     )        ,\
+  HID_USAGE      ( HID_USAGE_DESKTOP_GAMEPAD  )        ,\
+  HID_COLLECTION ( HID_COLLECTION_APPLICATION )        ,\
+    __VA_ARGS__ \
+    /* 16 bit Button Map */ \
+    HID_USAGE_PAGE   ( HID_USAGE_PAGE_BUTTON                  ) ,\
+    HID_USAGE_MIN    ( 1                                      ) ,\
+    HID_USAGE_MAX    ( 16                                     ) ,\
+    HID_LOGICAL_MIN  ( 0                                      ) ,\
+    HID_LOGICAL_MAX  ( 1                                      ) ,\
+    HID_REPORT_COUNT ( 16                                     ) ,\
+    HID_REPORT_SIZE  ( 1                                      ) ,\
+    HID_INPUT        ( HID_DATA | HID_ARRAY | HID_ABSOLUTE    ) ,\
+    /* X, Y, Z, Rz (min -127, max 127 ) */ \
+    HID_USAGE_PAGE   ( HID_USAGE_PAGE_DESKTOP                 ) ,\
+    HID_LOGICAL_MIN  ( 0x81                                   ) ,\
+    HID_LOGICAL_MAX  ( 0x7f                                   ) ,\
+    HID_USAGE        ( HID_USAGE_DESKTOP_X                    ) ,\
+    HID_USAGE        ( HID_USAGE_DESKTOP_Y                    ) ,\
+    HID_USAGE        ( HID_USAGE_DESKTOP_Z                    ) ,\
+    HID_USAGE        ( HID_USAGE_DESKTOP_RZ                   ) ,\
+    HID_REPORT_COUNT ( 4                                      ) ,\
+    HID_REPORT_SIZE  ( 8                                      ) ,\
+    HID_INPUT        ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
+  HID_COLLECTION_END \
+
+
+
+/** @} */
+/** @} */
+
+
+
+//--------------------------------------------------------------------+
+// INTERNAL API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+void hidd_init(void);
+bool hidd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length);
+bool hidd_control_request(uint8_t rhport, tusb_control_request_t const * p_request);
+bool hidd_control_request_complete (uint8_t rhport, tusb_control_request_t const * p_request);
+bool hidd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
+void hidd_reset(uint8_t rhport);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_HID_DEVICE_H_ */
+
diff --git a/src/class/hid/hid_host.c b/src/class/hid/hid_host.c
new file mode 100644
index 000000000..1e44055ec
--- /dev/null
+++ b/src/class/hid/hid_host.c
@@ -0,0 +1,305 @@
+/**************************************************************************/
+/*!
+    @file     hid_host.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_HOST_ENABLED && HOST_CLASS_HID)
+
+#define _TINY_USB_SOURCE_FILE_
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "common/tusb_common.h"
+#include "hid_host.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// HID Interface common functions
+//--------------------------------------------------------------------+
+static inline bool hidh_interface_open(uint8_t dev_addr, uint8_t interface_number, tusb_desc_endpoint_t const *p_endpoint_desc, hidh_interface_info_t *p_hid)
+{
+  p_hid->pipe_hdl         = hcd_edpt_open(dev_addr, p_endpoint_desc, TUSB_CLASS_HID);
+  p_hid->report_size      = p_endpoint_desc->wMaxPacketSize.size; // TODO get size from report descriptor
+  p_hid->interface_number = interface_number;
+
+  TU_ASSERT (pipehandle_is_valid(p_hid->pipe_hdl));
+
+  return true;
+}
+
+static inline void hidh_interface_close(hidh_interface_info_t *p_hid)
+{
+  tu_memclr(p_hid, sizeof(hidh_interface_info_t));
+}
+
+// called from public API need to validate parameters
+tusb_error_t hidh_interface_get_report(uint8_t dev_addr, void * report, hidh_interface_info_t *p_hid)
+{
+  //------------- parameters validation -------------//
+  // TODO change to use is configured function
+  TU_ASSERT (TUSB_DEVICE_STATE_CONFIGURED == tuh_device_get_state(dev_addr), TUSB_ERROR_DEVICE_NOT_READY);
+  TU_VERIFY (report, TUSB_ERROR_INVALID_PARA);
+  TU_ASSERT (!hcd_edpt_busy(p_hid->pipe_hdl), TUSB_ERROR_INTERFACE_IS_BUSY);
+
+  TU_ASSERT_ERR( hcd_pipe_xfer(p_hid->pipe_hdl, report, p_hid->report_size, true) ) ;
+
+  return TUSB_ERROR_NONE;
+}
+
+//--------------------------------------------------------------------+
+// KEYBOARD
+//--------------------------------------------------------------------+
+#if CFG_TUH_HID_KEYBOARD
+
+#if 0
+#define EXPAND_KEYCODE_TO_ASCII(keycode, ascii, shift_modified)  \
+  [0][keycode] = ascii,\
+  [1][keycode] = shift_modified,\
+
+// TODO size of table should be a macro for application to check boundary
+uint8_t const hid_keycode_to_ascii_tbl[2][128] =
+{
+    HID_KEYCODE_TABLE(EXPAND_KEYCODE_TO_ASCII)
+};
+#endif
+
+static hidh_interface_info_t keyboardh_data[CFG_TUSB_HOST_DEVICE_MAX]; // does not have addr0, index = dev_address-1
+
+//------------- KEYBOARD PUBLIC API (parameter validation required) -------------//
+bool  tuh_hid_keyboard_is_mounted(uint8_t dev_addr)
+{
+  return tuh_device_is_configured(dev_addr) && pipehandle_is_valid(keyboardh_data[dev_addr-1].pipe_hdl);
+}
+
+tusb_error_t tuh_hid_keyboard_get_report(uint8_t dev_addr, void* p_report)
+{
+  return hidh_interface_get_report(dev_addr, p_report, &keyboardh_data[dev_addr-1]);
+}
+
+bool tuh_hid_keyboard_is_busy(uint8_t dev_addr)
+{
+  return  tuh_hid_keyboard_is_mounted(dev_addr) &&
+          hcd_edpt_busy( keyboardh_data[dev_addr-1].pipe_hdl );
+}
+
+#endif
+
+//--------------------------------------------------------------------+
+// MOUSE
+//--------------------------------------------------------------------+
+#if CFG_TUH_HID_MOUSE
+
+STATIC_VAR hidh_interface_info_t mouseh_data[CFG_TUSB_HOST_DEVICE_MAX]; // does not have addr0, index = dev_address-1
+
+//------------- Public API -------------//
+bool tuh_hid_mouse_is_mounted(uint8_t dev_addr)
+{
+  return tuh_device_is_configured(dev_addr) && pipehandle_is_valid(mouseh_data[dev_addr-1].pipe_hdl);
+}
+
+bool tuh_hid_mouse_is_busy(uint8_t dev_addr)
+{
+  return  tuh_hid_mouse_is_mounted(dev_addr) &&
+          hcd_edpt_busy( mouseh_data[dev_addr-1].pipe_hdl );
+}
+
+tusb_error_t tuh_hid_mouse_get_report(uint8_t dev_addr, void * report)
+{
+  return hidh_interface_get_report(dev_addr, report, &mouseh_data[dev_addr-1]);
+}
+
+#endif
+
+//--------------------------------------------------------------------+
+// GENERIC
+//--------------------------------------------------------------------+
+#if CFG_TUSB_HOST_HID_GENERIC
+
+//STATIC_ struct {
+//  hidh_interface_info_t
+//} generic_data[CFG_TUSB_HOST_DEVICE_MAX];
+
+#endif
+
+//--------------------------------------------------------------------+
+// CLASS-USBH API (don't require to verify parameters)
+//--------------------------------------------------------------------+
+void hidh_init(void)
+{
+#if CFG_TUH_HID_KEYBOARD
+  tu_memclr(&keyboardh_data, sizeof(hidh_interface_info_t)*CFG_TUSB_HOST_DEVICE_MAX);
+#endif
+
+#if CFG_TUH_HID_MOUSE
+  tu_memclr(&mouseh_data, sizeof(hidh_interface_info_t)*CFG_TUSB_HOST_DEVICE_MAX);
+#endif
+
+#if CFG_TUSB_HOST_HID_GENERIC
+  hidh_generic_init();
+#endif
+}
+
+#if 0
+CFG_TUSB_MEM_SECTION uint8_t report_descriptor[256];
+#endif
+
+bool hidh_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length)
+{
+  uint8_t const *p_desc = (uint8_t const *) p_interface_desc;
+
+  //------------- HID descriptor -------------//
+  p_desc += p_desc[DESC_OFFSET_LEN];
+  tusb_hid_descriptor_hid_t const *p_desc_hid = (tusb_hid_descriptor_hid_t const *) p_desc;
+  TU_ASSERT(HID_DESC_TYPE_HID == p_desc_hid->bDescriptorType, TUSB_ERROR_INVALID_PARA);
+
+  //------------- Endpoint Descriptor -------------//
+  p_desc += p_desc[DESC_OFFSET_LEN];
+  tusb_desc_endpoint_t const * p_endpoint_desc = (tusb_desc_endpoint_t const *) p_desc;
+  TU_ASSERT(TUSB_DESC_ENDPOINT == p_endpoint_desc->bDescriptorType, TUSB_ERROR_INVALID_PARA);
+
+  //------------- SET IDLE (0) request -------------//
+  tusb_control_request_t request = {
+        .bmRequestType_bit = { .recipient = TUSB_REQ_RCPT_INTERFACE, .type = TUSB_REQ_TYPE_CLASS, .direction = TUSB_DIR_OUT },
+        .bRequest = HID_REQ_CONTROL_SET_IDLE,
+        .wValue = 0, // idle_rate = 0
+        .wIndex = p_interface_desc->bInterfaceNumber,
+        .wLength = 0
+  };
+  TU_ASSERT( usbh_control_xfer( dev_addr, &request, NULL ) );
+
+#if 0
+  //------------- Get Report Descriptor TODO HID parser -------------//
+  if ( p_desc_hid->bNumDescriptors )
+  {
+    STASK_INVOKE(
+        usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_IN, TUSB_REQ_TYPE_STANDARD, TUSB_REQ_RCPT_INTERFACE),
+                                   TUSB_REQ_GET_DESCRIPTOR, (p_desc_hid->bReportType << 8), 0,
+                                   p_desc_hid->wReportLength, report_descriptor ),
+        error
+    );
+    (void) error; // if error in getting report descriptor --> treating like there is none
+  }
+#endif
+
+  if ( HID_SUBCLASS_BOOT == p_interface_desc->bInterfaceSubClass )
+  {
+    #if CFG_TUH_HID_KEYBOARD
+    if ( HID_PROTOCOL_KEYBOARD == p_interface_desc->bInterfaceProtocol)
+    {
+      TU_ASSERT( hidh_interface_open(dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &keyboardh_data[dev_addr-1]) );
+      tuh_hid_keyboard_mounted_cb(dev_addr);
+    } else
+    #endif
+
+    #if CFG_TUH_HID_MOUSE
+    if ( HID_PROTOCOL_MOUSE == p_interface_desc->bInterfaceProtocol)
+    {
+      TU_ASSERT ( hidh_interface_open(dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &mouseh_data[dev_addr-1]) );
+      tuh_hid_mouse_mounted_cb(dev_addr);
+    } else
+    #endif
+
+    {
+      // TUSB_ERROR_HIDH_NOT_SUPPORTED_PROTOCOL
+      return false;
+    }
+  }else
+  {
+    // TUSB_ERROR_HIDH_NOT_SUPPORTED_SUBCLASS
+    return false;
+  }
+
+  *p_length = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + sizeof(tusb_desc_endpoint_t);
+
+  return true;
+}
+
+void hidh_isr(pipe_handle_t pipe_hdl, xfer_result_t event, uint32_t xferred_bytes)
+{
+  (void) xferred_bytes; // TODO may need to use this para later
+
+#if CFG_TUH_HID_KEYBOARD
+  if ( pipehandle_is_equal(pipe_hdl, keyboardh_data[pipe_hdl.dev_addr-1].pipe_hdl) )
+  {
+    tuh_hid_keyboard_isr(pipe_hdl.dev_addr, event);
+    return;
+  }
+#endif
+
+#if CFG_TUH_HID_MOUSE
+  if ( pipehandle_is_equal(pipe_hdl, mouseh_data[pipe_hdl.dev_addr-1].pipe_hdl) )
+  {
+    tuh_hid_mouse_isr(pipe_hdl.dev_addr, event);
+    return;
+  }
+#endif
+
+#if CFG_TUSB_HOST_HID_GENERIC
+
+#endif
+}
+
+void hidh_close(uint8_t dev_addr)
+{
+#if CFG_TUH_HID_KEYBOARD
+  if ( pipehandle_is_valid( keyboardh_data[dev_addr-1].pipe_hdl ) )
+  {
+    hidh_interface_close(&keyboardh_data[dev_addr-1]);
+    tuh_hid_keyboard_unmounted_cb(dev_addr);
+  }
+#endif
+
+#if CFG_TUH_HID_MOUSE
+  if( pipehandle_is_valid( mouseh_data[dev_addr-1].pipe_hdl ) )
+  {
+    hidh_interface_close(&mouseh_data[dev_addr-1]);
+    tuh_hid_mouse_unmounted_cb( dev_addr );
+  }
+#endif
+
+#if CFG_TUSB_HOST_HID_GENERIC
+  hidh_generic_close(dev_addr);
+#endif
+}
+
+
+
+#endif
diff --git a/src/class/hid/hid_host.h b/src/class/hid/hid_host.h
new file mode 100644
index 000000000..7336f5ada
--- /dev/null
+++ b/src/class/hid/hid_host.h
@@ -0,0 +1,231 @@
+/**************************************************************************/
+/*!
+    @file     hid_host.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \addtogroup ClassDriver_HID
+ *  @{ */
+
+#ifndef _TUSB_HID_HOST_H_
+#define _TUSB_HID_HOST_H_
+
+#include "common/tusb_common.h"
+#include "host/usbh.h"
+#include "hid.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// KEYBOARD Application API
+//--------------------------------------------------------------------+
+/** \addtogroup ClassDriver_HID_Keyboard Keyboard
+ *  @{ */
+
+/** \defgroup Keyboard_Host Host
+ *  The interface API includes status checking function, data transferring function and callback functions
+ *  @{ */
+
+extern uint8_t const hid_keycode_to_ascii_tbl[2][128]; // TODO used weak attr if build failed without KEYBOARD enabled
+
+/** \brief      Check if device supports Keyboard interface or not
+ * \param[in]   dev_addr    device address
+ * \retval      true if device supports Keyboard interface
+ * \retval      false if device does not support Keyboard interface or is not mounted
+ */
+bool          tuh_hid_keyboard_is_mounted(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
+
+/** \brief      Check if the interface is currently busy or not
+ * \param[in]   dev_addr device address
+ * \retval      true if the interface is busy meaning the stack is still transferring/waiting data from/to device
+ * \retval      false if the interface is not busy meaning the stack successfully transferred data from/to device
+ * \note        This function is primarily used for polling/waiting result after \ref tuh_hid_keyboard_get_report.
+ *              Alternatively, asynchronous event API can be used
+ */
+bool          tuh_hid_keyboard_is_busy(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
+
+/** \brief        Perform a get report from Keyboard interface
+ * \param[in]		  dev_addr device address
+ * \param[in,out] p_report address that is used to store data from device. Must be accessible by usb controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \returns       \ref tusb_error_t type to indicate success or error condition.
+ * \retval        TUSB_ERROR_NONE on success
+ * \retval        TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval        TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval        TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note          This function is non-blocking and returns immediately. The result of usb transfer will be reported by the interface's callback function
+ */
+tusb_error_t  tuh_hid_keyboard_get_report(uint8_t dev_addr, void * p_report) /*ATTR_WARN_UNUSED_RESULT*/;
+
+//------------- Application Callback -------------//
+/** \brief      Callback function that is invoked when an transferring event occurred
+ * \param[in]		dev_addr	Address of device
+ * \param[in]   event an value from \ref xfer_result_t
+ * \note        event can be one of following
+ *              - XFER_RESULT_SUCCESS : previously scheduled transfer completes successfully.
+ *              - XFER_RESULT_FAILED   : previously scheduled transfer encountered a transaction error.
+ *              - XFER_RESULT_STALLED : previously scheduled transfer is stalled by device.
+ * \note        Application should schedule the next report by calling \ref tuh_hid_keyboard_get_report within this callback
+ */
+void tuh_hid_keyboard_isr(uint8_t dev_addr, xfer_result_t event);
+
+/** \brief 			Callback function that will be invoked when a device with Keyboard interface is mounted
+ * \param[in] 	dev_addr Address of newly mounted device
+ * \note        This callback should be used by Application to set-up interface-related data
+ */
+void tuh_hid_keyboard_mounted_cb(uint8_t dev_addr);
+
+/** \brief 			Callback function that will be invoked when a device with Keyboard interface is unmounted
+ * \param[in] 	dev_addr Address of newly unmounted device
+ * \note        This callback should be used by Application to tear-down interface-related data
+ */
+void tuh_hid_keyboard_unmounted_cb(uint8_t dev_addr);
+
+/** @} */ // Keyboard_Host
+/** @} */ // ClassDriver_HID_Keyboard
+
+//--------------------------------------------------------------------+
+// MOUSE Application API
+//--------------------------------------------------------------------+
+/** \addtogroup ClassDriver_HID_Mouse Mouse
+ *  @{ */
+
+/** \defgroup Mouse_Host Host
+ *  The interface API includes status checking function, data transferring function and callback functions
+ *  @{ */
+
+/** \brief      Check if device supports Mouse interface or not
+ * \param[in]   dev_addr    device address
+ * \retval      true if device supports Mouse interface
+ * \retval      false if device does not support Mouse interface or is not mounted
+ */
+bool          tuh_hid_mouse_is_mounted(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
+
+/** \brief      Check if the interface is currently busy or not
+ * \param[in]   dev_addr device address
+ * \retval      true if the interface is busy meaning the stack is still transferring/waiting data from/to device
+ * \retval      false if the interface is not busy meaning the stack successfully transferred data from/to device
+ * \note        This function is primarily used for polling/waiting result after \ref tuh_hid_mouse_get_report.
+ *              Alternatively, asynchronous event API can be used
+ */
+bool          tuh_hid_mouse_is_busy(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
+
+/** \brief        Perform a get report from Mouse interface
+ * \param[in]		  dev_addr device address
+ * \param[in,out] p_report address that is used to store data from device. Must be accessible by usb controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \returns       \ref tusb_error_t type to indicate success or error condition.
+ * \retval        TUSB_ERROR_NONE on success
+ * \retval        TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval        TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval        TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note          This function is non-blocking and returns immediately. The result of usb transfer will be reported by the interface's callback function
+ */
+tusb_error_t  tuh_hid_mouse_get_report(uint8_t dev_addr, void* p_report) /*ATTR_WARN_UNUSED_RESULT*/;
+
+//------------- Application Callback -------------//
+/** \brief      Callback function that is invoked when an transferring event occurred
+ * \param[in]		dev_addr	Address of device
+ * \param[in]   event an value from \ref xfer_result_t
+ * \note        event can be one of following
+ *              - XFER_RESULT_SUCCESS : previously scheduled transfer completes successfully.
+ *              - XFER_RESULT_FAILED   : previously scheduled transfer encountered a transaction error.
+ *              - XFER_RESULT_STALLED : previously scheduled transfer is stalled by device.
+ * \note        Application should schedule the next report by calling \ref tuh_hid_mouse_get_report within this callback
+ */
+void tuh_hid_mouse_isr(uint8_t dev_addr, xfer_result_t event);
+
+/** \brief 			Callback function that will be invoked when a device with Mouse interface is mounted
+ * \param[in]	  dev_addr Address of newly mounted device
+ * \note        This callback should be used by Application to set-up interface-related data
+ */
+void tuh_hid_mouse_mounted_cb(uint8_t dev_addr);
+
+/** \brief 			Callback function that will be invoked when a device with Mouse interface is unmounted
+ * \param[in] 	dev_addr Address of newly unmounted device
+ * \note        This callback should be used by Application to tear-down interface-related data
+ */
+void tuh_hid_mouse_unmounted_cb(uint8_t dev_addr);
+
+/** @} */ // Mouse_Host
+/** @} */ // ClassDriver_HID_Mouse
+
+//--------------------------------------------------------------------+
+// GENERIC Application API
+//--------------------------------------------------------------------+
+/** \addtogroup ClassDriver_HID_Generic Generic (not supported yet)
+ *  @{ */
+
+/** \defgroup Generic_Host Host
+ *  The interface API includes status checking function, data transferring function and callback functions
+ *  @{ */
+
+bool          tuh_hid_generic_is_mounted(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
+tusb_error_t  tuh_hid_generic_get_report(uint8_t dev_addr, void* p_report, bool int_on_complete) ATTR_WARN_UNUSED_RESULT;
+tusb_error_t  tuh_hid_generic_set_report(uint8_t dev_addr, void* p_report, bool int_on_complete) ATTR_WARN_UNUSED_RESULT;
+tusb_interface_status_t tuh_hid_generic_get_status(uint8_t dev_addr) ATTR_WARN_UNUSED_RESULT;
+tusb_interface_status_t tuh_hid_generic_set_status(uint8_t dev_addr) ATTR_WARN_UNUSED_RESULT;
+
+//------------- Application Callback -------------//
+void tuh_hid_generic_isr(uint8_t dev_addr, xfer_result_t event);
+
+/** @} */ // Generic_Host
+/** @} */ // ClassDriver_HID_Generic
+
+//--------------------------------------------------------------------+
+// USBH-CLASS DRIVER API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+typedef struct {
+  pipe_handle_t pipe_hdl;
+  uint16_t report_size;
+  uint8_t interface_number;
+}hidh_interface_info_t;
+
+void hidh_init(void);
+bool hidh_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length) ATTR_WARN_UNUSED_RESULT;
+void hidh_isr(pipe_handle_t pipe_hdl, xfer_result_t event, uint32_t xferred_bytes);
+void hidh_close(uint8_t dev_addr);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _TUSB_HID_HOST_H_ */
+
+/** @} */ // ClassDriver_HID
diff --git a/src/class/msc/msc.h b/src/class/msc/msc.h
new file mode 100644
index 000000000..10a73bb1c
--- /dev/null
+++ b/src/class/msc/msc.h
@@ -0,0 +1,402 @@
+/**************************************************************************/
+/*!
+    @file     msc.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+/** \ingroup group_class
+ *  \defgroup ClassDriver_MSC MassStorage (MSC)
+ *  @{ */
+
+/**  \defgroup ClassDriver_MSC_Common Common Definitions
+ *  @{ */
+
+#ifndef _TUSB_MSC_H_
+#define _TUSB_MSC_H_
+
+#include "common/tusb_common.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// Mass Storage Class Constant
+//--------------------------------------------------------------------+
+/// MassStorage Subclass
+typedef enum
+{
+  MSC_SUBCLASS_RBC = 1 , ///< Reduced Block Commands (RBC) T10 Project 1240-D
+  MSC_SUBCLASS_SFF_MMC , ///< SFF-8020i, MMC-2 (ATAPI). Typically used by a CD/DVD device
+  MSC_SUBCLASS_QIC     , ///< QIC-157. Typically used by a tape device
+  MSC_SUBCLASS_UFI     , ///< UFI. Typically used by Floppy Disk Drive (FDD) device
+  MSC_SUBCLASS_SFF     , ///< SFF-8070i. Can be used by Floppy Disk Drive (FDD) device
+  MSC_SUBCLASS_SCSI      ///< SCSI transparent command set
+}msc_subclass_type_t;
+
+enum {
+  MSC_CBW_SIGNATURE = 0x43425355, ///< Constant value of 43425355h (little endian)
+  MSC_CSW_SIGNATURE = 0x53425355  ///< Constant value of 53425355h (little endian)
+};
+
+/// \brief MassStorage Protocol.
+/// \details CBI only approved to use with full-speed floopy disk & should not used with highspeed or device other than floopy
+typedef enum
+{
+  MSC_PROTOCOL_CBI              = 0 ,  ///< Control/Bulk/Interrupt protocol (with command completion interrupt)
+  MSC_PROTOCOL_CBI_NO_INTERRUPT = 1 ,  ///< Control/Bulk/Interrupt protocol (without command completion interrupt)
+  MSC_PROTOCOL_BOT              = 0x50 ///< Bulk-Only Transport
+}msc_protocol_type_t;
+
+/// MassStorage Class-Specific Control Request
+typedef enum
+{
+  MSC_REQ_GET_MAX_LUN = 254, ///< The Get Max LUN device request is used to determine the number of logical units supported by the device. Logical Unit Numbers on the device shall be numbered contiguously starting from LUN 0 to a maximum LUN of 15
+  MSC_REQ_RESET       = 255  ///< This request is used to reset the mass storage device and its associated interface. This class-specific request shall ready the device for the next CBW from the host.
+}msc_request_type_t;
+
+/// \brief Command Block Status Values
+/// \details Indicates the success or failure of the command. The device shall set this byte to zero if the command completed
+/// successfully. A non-zero value shall indicate a failure during command execution according to the following
+typedef enum
+{
+  MSC_CSW_STATUS_PASSED = 0 , ///< MSC_CSW_STATUS_PASSED
+  MSC_CSW_STATUS_FAILED     , ///< MSC_CSW_STATUS_FAILED
+  MSC_CSW_STATUS_PHASE_ERROR  ///< MSC_CSW_STATUS_PHASE_ERROR
+}msc_csw_status_t;
+
+/// Command Block Wrapper
+typedef struct ATTR_PACKED
+{
+  uint32_t signature;   ///< Signature that helps identify this data packet as a CBW. The signature field shall contain the value 43425355h (little endian), indicating a CBW.
+  uint32_t tag;         ///< Tag sent by the host. The device shall echo the contents of this field back to the host in the dCSWTagfield of the associated CSW. The dCSWTagpositively associates a CSW with the corresponding CBW.
+  uint32_t total_bytes; ///< The number of bytes of data that the host expects to transfer on the Bulk-In or Bulk-Out endpoint (as indicated by the Direction bit) during the execution of this command. If this field is zero, the device and the host shall transfer no data between the CBW and the associated CSW, and the device shall ignore the value of the Direction bit in bmCBWFlags.
+  uint8_t dir;          ///< Bit 7 of this field define transfer direction \n - 0 : Data-Out from host to the device. \n - 1 : Data-In from the device to the host.
+  uint8_t lun;          ///< The device Logical Unit Number (LUN) to which the command block is being sent. For devices that support multiple LUNs, the host shall place into this field the LUN to which this command block is addressed. Otherwise, the host shall set this field to zero.
+  uint8_t cmd_len;      ///< The valid length of the CBWCBin bytes. This defines the valid length of the command block. The only legal values are 1 through 16
+  uint8_t command[16];  ///< The command block to be executed by the device. The device shall interpret the first cmd_len bytes in this field as a command block
+}msc_cbw_t;
+
+TU_VERIFY_STATIC(sizeof(msc_cbw_t) == 31, "size is not correct");
+
+/// Command Status Wrapper
+typedef struct ATTR_PACKED
+{
+  uint32_t signature    ; ///< Signature that helps identify this data packet as a CSW. The signature field shall contain the value 53425355h (little endian), indicating CSW.
+  uint32_t tag          ; ///< The device shall set this field to the value received in the dCBWTag of the associated CBW.
+  uint32_t data_residue ; ///< For Data-Out the device shall report in the dCSWDataResiduethe difference between the amount of data expected as stated in the dCBWDataTransferLength, and the actual amount of data processed by the device. For Data-In the device shall report in the dCSWDataResiduethe difference between the amount of data expected as stated in the dCBWDataTransferLengthand the actual amount of relevant data sent by the device
+  uint8_t  status       ; ///< indicates the success or failure of the command. Values from \ref msc_csw_status_t
+}msc_csw_t;
+
+TU_VERIFY_STATIC(sizeof(msc_csw_t) == 13, "size is not correct");
+
+//--------------------------------------------------------------------+
+// SCSI Constant
+//--------------------------------------------------------------------+
+
+/// SCSI Command Operation Code
+typedef enum
+{
+  SCSI_CMD_TEST_UNIT_READY              = 0x00, ///< The SCSI Test Unit Ready command is used to determine if a device is ready to transfer data (read/write), i.e. if a disk has spun up, if a tape is loaded and ready etc. The device does not perform a self-test operation.
+  SCSI_CMD_INQUIRY                      = 0x12, ///< The SCSI Inquiry command is used to obtain basic information from a target device.
+  SCSI_CMD_MODE_SELECT_6                = 0x15, ///<  provides a means for the application client to specify medium, logical unit, or peripheral device parameters to the device server. Device servers that implement the MODE SELECT(6) command shall also implement the MODE SENSE(6) command. Application clients should issue MODE SENSE(6) prior to each MODE SELECT(6) to determine supported mode pages, page lengths, and other parameters.
+  SCSI_CMD_MODE_SENSE_6                 = 0x1A, ///< provides a means for a device server to report parameters to an application client. It is a complementary command to the MODE SELECT(6) command. Device servers that implement the MODE SENSE(6) command shall also implement the MODE SELECT(6) command.
+  SCSI_CMD_START_STOP_UNIT              = 0x1B,
+  SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL = 0x1E,
+  SCSI_CMD_READ_CAPACITY_10             = 0x25, ///< The SCSI Read Capacity command is used to obtain data capacity information from a target device.
+  SCSI_CMD_REQUEST_SENSE                = 0x03, ///< The SCSI Request Sense command is part of the SCSI computer protocol standard. This command is used to obtain sense data -- status/error information -- from a target device.
+  SCSI_CMD_READ_FORMAT_CAPACITY         = 0x23, ///< The command allows the Host to request a list of the possible format capacities for an installed writable media. This command also has the capability to report the writable capacity for a media when it is installed
+  SCSI_CMD_READ_10                      = 0x28, ///< The READ (10) command requests that the device server read the specified logical block(s) and transfer them to the data-in buffer.
+  SCSI_CMD_WRITE_10                     = 0x2A, ///< The WRITE (10) command requests thatthe device server transfer the specified logical block(s) from the data-out buffer and write them.
+}scsi_cmd_type_t;
+
+/// SCSI Sense Key
+typedef enum
+{
+  SCSI_SENSE_NONE            = 0x00, ///< no specific Sense Key. This would be the case for a successful command
+  SCSI_SENSE_RECOVERED_ERROR = 0x01, ///< ndicates the last command completed successfully with some recovery action performed by the disc drive.
+  SCSI_SENSE_NOT_READY       = 0x02, ///< Indicates the logical unit addressed cannot be accessed.
+  SCSI_SENSE_MEDIUM_ERROR    = 0x03, ///< Indicates the command terminated with a non-recovered error condition.
+  SCSI_SENSE_HARDWARE_ERROR  = 0x04, ///< Indicates the disc drive detected a nonrecoverable hardware failure while performing the command or during a self test.
+  SCSI_SENSE_ILLEGAL_REQUEST = 0x05, ///< Indicates an illegal parameter in the command descriptor block or in the additional parameters
+  SCSI_SENSE_UNIT_ATTENTION  = 0x06, ///< Indicates the disc drive may have been reset.
+  SCSI_SENSE_DATA_PROTECT    = 0x07, ///< Indicates that a command that reads or writes the medium was attempted on a block that is protected from this operation. The read or write operation is not performed.
+  SCSI_SENSE_FIRMWARE_ERROR  = 0x08, ///< Vendor specific sense key.
+  SCSI_SENSE_ABORTED_COMMAND = 0x0b, ///< Indicates the disc drive aborted the command.
+  SCSI_SENSE_EQUAL           = 0x0c, ///< Indicates a SEARCH DATA command has satisfied an equal comparison.
+  SCSI_SENSE_VOLUME_OVERFLOW = 0x0d, ///< Indicates a buffered peripheral device has reached the end of medium partition and data remains in the buffer that has not been written to the medium.
+  SCSI_SENSE_MISCOMPARE      = 0x0e  ///< ndicates that the source data did not match the data read from the medium.
+}scsi_sense_key_type_t;
+
+//--------------------------------------------------------------------+
+// SCSI Primary Command (SPC-4)
+//--------------------------------------------------------------------+
+
+/// SCSI Test Unit Ready Command
+typedef struct ATTR_PACKED
+{
+  uint8_t cmd_code    ; ///< SCSI OpCode for \ref SCSI_CMD_TEST_UNIT_READY
+  uint8_t lun         ; ///< Logical Unit
+  uint8_t reserved[3] ;
+  uint8_t control     ;
+} scsi_test_unit_ready_t;
+
+TU_VERIFY_STATIC(sizeof(scsi_test_unit_ready_t) == 6, "size is not correct");
+
+/// SCSI Inquiry Command
+typedef struct ATTR_PACKED
+{
+  uint8_t cmd_code     ; ///< SCSI OpCode for \ref SCSI_CMD_INQUIRY
+  uint8_t reserved1    ;
+  uint8_t page_code    ;
+  uint8_t reserved2    ;
+  uint8_t alloc_length ; ///< specifies the maximum number of bytes that USB host has allocated in the Data-In Buffer. An allocation length of zero specifies that no data shall be transferred.
+  uint8_t control      ;
+} scsi_inquiry_t, scsi_request_sense_t;
+
+TU_VERIFY_STATIC(sizeof(scsi_inquiry_t) == 6, "size is not correct");
+
+/// SCSI Inquiry Response Data
+typedef struct ATTR_PACKED
+{
+  uint8_t peripheral_device_type     : 5;
+  uint8_t peripheral_qualifier       : 3;
+
+  uint8_t                            : 7;
+  uint8_t is_removable               : 1;
+
+  uint8_t version;
+
+  uint8_t response_data_format       : 4;
+  uint8_t hierarchical_support       : 1;
+  uint8_t normal_aca                 : 1;
+  uint8_t                            : 2;
+
+  uint8_t additional_length;
+
+  uint8_t protect                    : 1;
+  uint8_t                            : 2;
+  uint8_t third_party_copy           : 1;
+  uint8_t target_port_group_support  : 2;
+  uint8_t access_control_coordinator : 1;
+  uint8_t scc_support                : 1;
+
+  uint8_t addr16                     : 1;
+  uint8_t                            : 3;
+  uint8_t multi_port                 : 1;
+  uint8_t                            : 1; // vendor specific
+  uint8_t enclosure_service          : 1;
+  uint8_t                            : 1;
+
+  uint8_t                            : 1; // vendor specific
+  uint8_t cmd_que                    : 1;
+  uint8_t                            : 2;
+  uint8_t sync                       : 1;
+  uint8_t wbus16                     : 1;
+  uint8_t                            : 2;
+
+  uint8_t vendor_id[8]  ; ///< 8 bytes of ASCII data identifying the vendor of the product.
+  uint8_t product_id[16]; ///< 16 bytes of ASCII data defined by the vendor.
+  uint8_t product_rev[4]; ///< 4 bytes of ASCII data defined by the vendor.
+} scsi_inquiry_resp_t;
+
+TU_VERIFY_STATIC(sizeof(scsi_inquiry_resp_t) == 36, "size is not correct");
+
+
+typedef struct ATTR_PACKED
+{
+  uint8_t response_code : 7; ///< 70h - current errors, Fixed Format 71h - deferred errors, Fixed Format
+  uint8_t valid         : 1;
+
+  uint8_t reserved;
+
+  uint8_t sense_key     : 4;
+  uint8_t               : 1;
+  uint8_t ili           : 1; ///< Incorrect length indicator
+  uint8_t end_of_medium : 1;
+  uint8_t filemark      : 1;
+
+  uint32_t information;
+  uint8_t  add_sense_len;
+  uint32_t command_specific_info;
+  uint8_t  add_sense_code;
+  uint8_t  add_sense_qualifier;
+  uint8_t  field_replaceable_unit_code;
+
+  uint8_t  sense_key_specific[3]; ///< sense key specific valid bit is bit 7 of key[0], aka MSB in Big Endian layout
+
+} scsi_sense_fixed_resp_t;
+
+TU_VERIFY_STATIC(sizeof(scsi_sense_fixed_resp_t) == 18, "size is not correct");
+
+typedef struct ATTR_PACKED
+{
+  uint8_t cmd_code     ; ///< SCSI OpCode for \ref SCSI_CMD_MODE_SENSE_6
+
+  uint8_t : 3;
+  uint8_t disable_block_descriptor : 1;
+  uint8_t : 0;
+
+  uint8_t page_code : 6;
+  uint8_t page_control : 2;
+
+  uint8_t subpage_code;
+  uint8_t alloc_length;
+  uint8_t control;
+} scsi_mode_sense6_t;
+
+TU_VERIFY_STATIC( sizeof(scsi_mode_sense6_t) == 6, "size is not correct");
+
+// This is only a Mode parameter header(6).
+typedef struct ATTR_PACKED
+{
+  uint8_t data_len;
+  uint8_t medium_type;
+  bool write_protected : 1;
+  uint8_t reserved : 7;
+  uint8_t block_descriptor_len;
+} scsi_mode_sense6_resp_t;
+
+TU_VERIFY_STATIC( sizeof(scsi_mode_sense6_resp_t) == 4, "size is not correct");
+
+typedef struct ATTR_PACKED
+{
+  uint8_t cmd_code; ///< SCSI OpCode for \ref SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL
+  uint8_t reserved[3];
+  uint8_t prohibit_removal;
+  uint8_t control;
+} scsi_prevent_allow_medium_removal_t;
+
+TU_VERIFY_STATIC( sizeof(scsi_prevent_allow_medium_removal_t) == 6, "size is not correct");
+
+typedef struct ATTR_PACKED
+{
+  uint8_t cmd_code;
+
+  uint8_t immded : 1;
+  uint8_t        : 7;
+
+  uint8_t TU_RESERVED;
+
+  uint8_t power_condition_mod : 4;
+  uint8_t                     : 4;
+
+  uint8_t start           : 1;
+  uint8_t load_eject      : 1;
+  uint8_t no_flush        : 1;
+  uint8_t                 : 1;
+  uint8_t power_condition : 4;
+
+  uint8_t control;
+} scsi_start_stop_unit_t;
+
+TU_VERIFY_STATIC( sizeof(scsi_start_stop_unit_t) == 6, "size is not correct");
+
+//--------------------------------------------------------------------+
+// SCSI MMC
+//--------------------------------------------------------------------+
+/// SCSI Read Format Capacity: Write Capacity
+typedef struct ATTR_PACKED
+{
+  uint8_t cmd_code;
+  uint8_t reserved[6];
+  uint16_t alloc_length;
+  uint8_t control;
+} scsi_read_format_capacity_t;
+
+TU_VERIFY_STATIC( sizeof(scsi_read_format_capacity_t) == 10, "size is not correct");
+
+typedef struct ATTR_PACKED{
+  uint8_t reserved[3];
+  uint8_t list_length; /// must be 8*n, length in bytes of formattable capacity descriptor followed it.
+
+  uint32_t block_num; /// Number of Logical Blocks
+  uint8_t  descriptor_type; // 00: reserved, 01 unformatted media , 10 Formatted media, 11 No media present
+
+  uint8_t  reserved2;
+  uint16_t block_size_u16;
+
+} scsi_read_format_capacity_data_t;
+
+TU_VERIFY_STATIC( sizeof(scsi_read_format_capacity_data_t) == 12, "size is not correct");
+
+//--------------------------------------------------------------------+
+// SCSI Block Command (SBC-3)
+// NOTE: All data in SCSI command are in Big Endian
+//--------------------------------------------------------------------+
+
+/// SCSI Read Capacity 10 Command: Read Capacity
+typedef struct ATTR_PACKED
+{
+  uint8_t  cmd_code                 ; ///< SCSI OpCode for \ref SCSI_CMD_READ_CAPACITY_10
+  uint8_t  reserved1                ;
+  uint32_t lba                      ; ///< The first Logical Block Address (LBA) accessed by this command
+  uint16_t reserved2                ;
+  uint8_t  partial_medium_indicator ;
+  uint8_t  control                  ;
+} scsi_read_capacity10_t;
+
+TU_VERIFY_STATIC(sizeof(scsi_read_capacity10_t) == 10, "size is not correct");
+
+/// SCSI Read Capacity 10 Response Data
+typedef struct {
+  uint32_t last_lba   ; ///< The last Logical Block Address of the device
+  uint32_t block_size ; ///< Block size in bytes
+} scsi_read_capacity10_resp_t;
+
+TU_VERIFY_STATIC(sizeof(scsi_read_capacity10_resp_t) == 8, "size is not correct");
+
+/// SCSI Read 10 Command
+typedef struct ATTR_PACKED
+{
+  uint8_t  cmd_code    ; ///< SCSI OpCode
+  uint8_t  reserved    ; // has LUN according to wiki
+  uint32_t lba         ; ///< The first Logical Block Address (LBA) accessed by this command
+  uint8_t  reserved2   ;
+  uint16_t block_count ; ///< Number of Blocks used by this command
+  uint8_t  control     ;
+} scsi_read10_t, scsi_write10_t;
+
+TU_VERIFY_STATIC(sizeof(scsi_read10_t) == 10, "size is not correct");
+TU_VERIFY_STATIC(sizeof(scsi_write10_t) == 10, "size is not correct");
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_MSC_H_ */
+
+/// @}
+/// @}
diff --git a/src/class/msc/msc_device.c b/src/class/msc/msc_device.c
new file mode 100644
index 000000000..d4d115bce
--- /dev/null
+++ b/src/class/msc/msc_device.c
@@ -0,0 +1,605 @@
+/**************************************************************************/
+/*!
+    @file     msc_device.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_MSC)
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#define _TINY_USB_SOURCE_FILE_
+
+#include "common/tusb_common.h"
+#include "msc_device.h"
+#include "device/usbd_pvt.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+enum
+{
+  MSC_STAGE_CMD  = 0,
+  MSC_STAGE_DATA,
+  MSC_STAGE_STATUS
+};
+
+typedef struct {
+  CFG_TUSB_MEM_ALIGN msc_cbw_t  cbw;
+
+//#if defined (__ICCARM__) && (CFG_TUSB_MCU == OPT_MCU_LPC11UXX || CFG_TUSB_MCU == OPT_MCU_LPC13XX)
+//  uint8_t padding1[64-sizeof(msc_cbw_t)]; // IAR cannot align struct's member
+//#endif
+
+  CFG_TUSB_MEM_ALIGN msc_csw_t csw;
+
+  uint8_t  itf_num;
+  uint8_t  ep_in;
+  uint8_t  ep_out;
+
+  // Bulk Only Transfer (BOT) Protocol
+  uint8_t  stage;
+  uint32_t total_len;
+  uint32_t xferred_len; // numbered of bytes transferred so far in the Data Stage
+
+  // Sense Response Data
+  uint8_t sense_key;
+  uint8_t add_sense_code;
+  uint8_t add_sense_qualifier;
+}mscd_interface_t;
+
+CFG_TUSB_MEM_SECTION CFG_TUSB_MEM_ALIGN static mscd_interface_t _mscd_itf;
+CFG_TUSB_MEM_SECTION CFG_TUSB_MEM_ALIGN static uint8_t _mscd_buf[CFG_TUD_MSC_BUFSIZE];
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+static void proc_read10_cmd(uint8_t rhport, mscd_interface_t* p_msc);
+static void proc_write10_cmd(uint8_t rhport, mscd_interface_t* p_msc);
+
+static inline uint32_t rdwr10_get_lba(uint8_t const command[])
+{
+  // read10 & write10 has the same format
+  scsi_write10_t* p_rdwr10 = (scsi_write10_t*) command;
+
+  // copy first to prevent mis-aligned access
+  uint32_t lba;
+  memcpy(&lba, &p_rdwr10->lba, 4);
+
+  return  __be2n(lba);
+}
+
+static inline uint16_t rdwr10_get_blockcount(uint8_t const command[])
+{
+  // read10 & write10 has the same format
+  scsi_write10_t* p_rdwr10 = (scsi_write10_t*) command;
+
+  // copy first to prevent mis-aligned access
+  uint16_t block_count;
+  memcpy(&block_count, &p_rdwr10->block_count, 2);
+
+  return __be2n_16(block_count);
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION API
+//--------------------------------------------------------------------+
+bool tud_msc_ready(void)
+{
+  return ( _mscd_itf.ep_in != 0 ) && ( _mscd_itf.ep_out != 0 ) ;
+}
+
+bool tud_msc_set_sense(uint8_t lun, uint8_t sense_key, uint8_t add_sense_code, uint8_t add_sense_qualifier)
+{
+  (void) lun;
+
+  _mscd_itf.sense_key           = sense_key;
+  _mscd_itf.add_sense_code      = add_sense_code;
+  _mscd_itf.add_sense_qualifier = add_sense_qualifier;
+
+  return true;
+}
+
+
+//--------------------------------------------------------------------+
+// USBD-CLASS API
+//--------------------------------------------------------------------+
+void mscd_init(void)
+{
+  tu_memclr(&_mscd_itf, sizeof(mscd_interface_t));
+}
+
+void mscd_reset(uint8_t rhport)
+{
+  (void) rhport;
+  tu_memclr(&_mscd_itf, sizeof(mscd_interface_t));
+}
+
+bool mscd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_len)
+{
+  // only support SCSI's BOT protocol
+  TU_ASSERT(MSC_SUBCLASS_SCSI == itf_desc->bInterfaceSubClass &&
+            MSC_PROTOCOL_BOT  == itf_desc->bInterfaceProtocol);
+
+  mscd_interface_t * p_msc = &_mscd_itf;
+
+  // Open endpoint pair with usbd helper
+  tusb_desc_endpoint_t const *p_desc_ep = (tusb_desc_endpoint_t const *) tu_desc_next( itf_desc );
+  TU_ASSERT( usbd_open_edpt_pair(rhport, p_desc_ep, TUSB_XFER_BULK, &p_msc->ep_out, &p_msc->ep_in) );
+
+  p_msc->itf_num = itf_desc->bInterfaceNumber;
+  (*p_len) = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
+
+  // Prepare for Command Block Wrapper
+  TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
+
+  return true;
+}
+
+// Handle class control request
+// return false to stall control endpoint (e.g unsupported request)
+bool mscd_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  TU_ASSERT(p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS);
+
+  switch ( p_request->bRequest )
+  {
+    case MSC_REQ_RESET:
+      // TODO: Actually reset interface.
+      usbd_control_status(rhport, p_request);
+    break;
+
+    case MSC_REQ_GET_MAX_LUN:
+    {
+      // returned MAX LUN is minus 1 by specs
+      uint8_t maxlun = CFG_TUD_MSC_MAXLUN-1;
+      usbd_control_xfer(rhport, p_request, &maxlun, 1);
+    }
+    break;
+
+    default: return false; // stall unsupported request
+  }
+
+  return true;
+}
+
+// Invoked when class request DATA stage is finished.
+// return false to stall control endpoint (e.g Host send non-sense DATA)
+bool mscd_control_request_complete(uint8_t rhport, tusb_control_request_t const * p_request)
+{
+  (void) rhport;
+  (void) p_request;
+
+  // nothing to do
+  return true;
+}
+
+// return length of response (copied to buffer), -1 if it is not an built-in commands
+int32_t proc_builtin_scsi(msc_cbw_t const * p_cbw, uint8_t* buffer, uint32_t bufsize)
+{
+  (void) bufsize; // TODO refractor later
+  int32_t ret;
+
+  switch ( p_cbw->command[0] )
+  {
+    case SCSI_CMD_READ_CAPACITY_10:
+    {
+      scsi_read_capacity10_resp_t read_capa10;
+
+      uint32_t block_count;
+      uint32_t block_size;
+      uint16_t block_size_u16;
+
+      tud_msc_capacity_cb(p_cbw->lun, &block_count, &block_size_u16);
+      block_size = (uint32_t) block_size_u16;
+
+      read_capa10.last_lba = ENDIAN_BE(block_count-1);
+      read_capa10.block_size = ENDIAN_BE(block_size);
+
+      ret = sizeof(read_capa10);
+      memcpy(buffer, &read_capa10, ret);
+    }
+    break;
+
+    case SCSI_CMD_READ_FORMAT_CAPACITY:
+    {
+      scsi_read_format_capacity_data_t read_fmt_capa =
+      {
+          .list_length     = 8,
+          .block_num       = 0,
+          .descriptor_type = 2, // formatted media
+          .block_size_u16  = 0
+      };
+
+      uint32_t block_count;
+      uint16_t block_size;
+
+      tud_msc_capacity_cb(p_cbw->lun, &block_count, &block_size);
+      read_fmt_capa.block_num = ENDIAN_BE(block_count);
+      read_fmt_capa.block_size_u16 = ENDIAN_BE16(block_size);
+
+      ret = sizeof(read_fmt_capa);
+      memcpy(buffer, &read_fmt_capa, ret);
+    }
+    break;
+
+    case SCSI_CMD_INQUIRY:
+    {
+      scsi_inquiry_resp_t inquiry_rsp =
+      {
+          .is_removable         = 1,
+          .version              = 2,
+          .response_data_format = 2,
+          .vendor_id            = "Adafruit",
+          .product_id           = "Feather52840",
+          .product_rev          = "1.0"
+      };
+
+      strncpy((char*) inquiry_rsp.vendor_id  , CFG_TUD_MSC_VENDOR     , sizeof(inquiry_rsp.vendor_id));
+      strncpy((char*) inquiry_rsp.product_id , CFG_TUD_MSC_PRODUCT    , sizeof(inquiry_rsp.product_id));
+      strncpy((char*) inquiry_rsp.product_rev, CFG_TUD_MSC_PRODUCT_REV, sizeof(inquiry_rsp.product_rev));
+
+      ret = sizeof(inquiry_rsp);
+      memcpy(buffer, &inquiry_rsp, ret);
+    }
+    break;
+
+    case SCSI_CMD_MODE_SENSE_6:
+    {
+      scsi_mode_sense6_resp_t mode_resp =
+      {
+          .data_len = 3,
+          .medium_type = 0,
+          .write_protected = false,
+          .reserved = 0,
+          .block_descriptor_len = 0  // no block descriptor are included
+      };
+
+      bool writable = true;
+      if (tud_msc_is_writable_cb) {
+          writable = tud_msc_is_writable_cb(p_cbw->lun);
+      }
+      mode_resp.write_protected = !writable;
+
+      ret = sizeof(mode_resp);
+      memcpy(buffer, &mode_resp, ret);
+    }
+    break;
+
+    case SCSI_CMD_REQUEST_SENSE:
+    {
+      scsi_sense_fixed_resp_t sense_rsp =
+      {
+          .response_code = 0x70,
+          .valid         = 1
+      };
+
+      sense_rsp.add_sense_len = sizeof(scsi_sense_fixed_resp_t) - 8;
+
+      sense_rsp.sense_key           = _mscd_itf.sense_key;
+      sense_rsp.add_sense_code      = _mscd_itf.add_sense_code;
+      sense_rsp.add_sense_qualifier = _mscd_itf.add_sense_qualifier;
+
+      ret = sizeof(sense_rsp);
+      memcpy(buffer, &sense_rsp, ret);
+
+      // Clear sense data after copy
+      tud_msc_set_sense(p_cbw->lun, 0, 0, 0);
+    }
+    break;
+
+    default: ret = -1; break;
+  }
+
+  return ret;
+}
+
+bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
+{
+  mscd_interface_t* p_msc = &_mscd_itf;
+  msc_cbw_t const * p_cbw = &p_msc->cbw;
+  msc_csw_t       * p_csw = &p_msc->csw;
+
+  switch (p_msc->stage)
+  {
+    case MSC_STAGE_CMD:
+      //------------- new CBW received -------------//
+      // Complete IN while waiting for CMD is usually Status of previous SCSI op, ignore it
+      if(ep_addr != p_msc->ep_out) return true;
+
+      TU_ASSERT( event == XFER_RESULT_SUCCESS &&
+                 xferred_bytes == sizeof(msc_cbw_t) && p_cbw->signature == MSC_CBW_SIGNATURE );
+
+      p_csw->signature    = MSC_CSW_SIGNATURE;
+      p_csw->tag          = p_cbw->tag;
+      p_csw->data_residue = 0;
+
+      /*------------- Parse command and prepare DATA -------------*/
+      p_msc->stage = MSC_STAGE_DATA;
+      p_msc->total_len = p_cbw->total_bytes;
+      p_msc->xferred_len = 0;
+
+      if (SCSI_CMD_READ_10 == p_cbw->command[0])
+      {
+        proc_read10_cmd(rhport, p_msc);
+      }
+      else if (SCSI_CMD_WRITE_10 == p_cbw->command[0])
+      {
+        proc_write10_cmd(rhport, p_msc);
+      }
+      else
+      {
+        // For other SCSI commands
+        // 1. Zero : Invoke app callback, skip DATA and move to STATUS stage
+        // 2. OUT  : queue transfer (invoke app callback after done)
+        // 3. IN   : invoke app callback to get response
+        if ( p_cbw->total_bytes == 0)
+        {
+          int32_t const cb_result = tud_msc_scsi_cb(p_cbw->lun, p_cbw->command, NULL, 0);
+
+          p_msc->total_len = 0;
+          p_msc->stage = MSC_STAGE_STATUS;
+
+          if ( cb_result < 0 )
+          {
+            p_csw->status = MSC_CSW_STATUS_FAILED;
+            tud_msc_set_sense(p_cbw->lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00); // Sense = Invalid Command Operation
+          }
+          else
+          {
+            p_csw->status = MSC_CSW_STATUS_PASSED;
+          }
+        }
+        else if ( !BIT_TEST_(p_cbw->dir, 7) )
+        {
+          // OUT transfer
+          TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, _mscd_buf, p_msc->total_len) );
+        }
+        else
+        {
+          // IN Transfer
+          int32_t cb_result;
+
+          // first process if it is a built-in commands
+          cb_result = proc_builtin_scsi(p_cbw, _mscd_buf, sizeof(_mscd_buf));
+
+          // Not an built-in command, invoke user callback
+          if ( cb_result < 0 )
+          {
+            cb_result = tud_msc_scsi_cb(p_cbw->lun, p_cbw->command, _mscd_buf, p_msc->total_len);
+          }
+
+          if ( cb_result > 0 )
+          {
+            p_msc->total_len = (uint32_t) cb_result;
+            p_csw->status = MSC_CSW_STATUS_PASSED;
+
+            TU_ASSERT( p_cbw->total_bytes >= p_msc->total_len ); // cannot return more than host expect
+            TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in, _mscd_buf, p_msc->total_len) );
+          }else
+          {
+            p_msc->total_len = 0;
+            p_csw->status = MSC_CSW_STATUS_FAILED;
+            p_msc->stage = MSC_STAGE_STATUS;
+
+            tud_msc_set_sense(p_cbw->lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00); // Sense = Invalid Command Operation
+            dcd_edpt_stall(rhport, p_msc->ep_in);
+          }
+        }
+      }
+    break;
+
+    case MSC_STAGE_DATA:
+      // OUT transfer, invoke callback if needed
+      if ( !BIT_TEST_(p_cbw->dir, 7) )
+      {
+        if ( SCSI_CMD_WRITE_10 != p_cbw->command[0] )
+        {
+          int32_t cb_result = tud_msc_scsi_cb(p_cbw->lun, p_cbw->command, _mscd_buf, p_msc->total_len);
+
+          if ( cb_result < 0 )
+          {
+            p_csw->status = MSC_CSW_STATUS_FAILED;
+            tud_msc_set_sense(p_cbw->lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00); // Sense = Invalid Command Operation
+          }else
+          {
+            p_csw->status = MSC_CSW_STATUS_PASSED;
+          }
+        }
+        else
+        {
+          uint16_t const block_sz = p_cbw->total_bytes / rdwr10_get_blockcount(p_cbw->command);
+
+          // Adjust lba with transferred bytes
+          uint32_t const lba = rdwr10_get_lba(p_cbw->command) + (p_msc->xferred_len / block_sz);
+
+          // Application can consume smaller bytes
+          int32_t nbytes = tud_msc_write10_cb(p_cbw->lun, lba, p_msc->xferred_len % block_sz, _mscd_buf, xferred_bytes);
+
+          if ( nbytes < 0 )
+          {
+            // negative means error -> skip to status phase, status in CSW set to failed
+            p_csw->data_residue = p_cbw->total_bytes - p_msc->xferred_len;
+            p_csw->status       = MSC_CSW_STATUS_FAILED;
+            p_msc->stage        = MSC_STAGE_STATUS;
+
+            tud_msc_set_sense(p_cbw->lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00); // Sense = Invalid Command Operation
+            break;
+          }else
+          {
+            // Application consume less than what we got (including zero)
+            if ( nbytes < (int32_t) xferred_bytes )
+            {
+              if ( nbytes > 0 )
+              {
+                p_msc->xferred_len += nbytes;
+                memmove(_mscd_buf, _mscd_buf+nbytes, xferred_bytes-nbytes);
+              }
+
+              // simulate an transfer complete with adjusted parameters --> this driver callback will fired again
+              dcd_event_xfer_complete(rhport, p_msc->ep_out, xferred_bytes-nbytes, XFER_RESULT_SUCCESS, false);
+
+              return true; // skip the rest
+            }
+            else
+            {
+              // Application consume all bytes in our buffer. Nothing to do, process with normal flow
+            }
+          }
+        }
+      }
+
+      // Accumulate data so far
+      p_msc->xferred_len += xferred_bytes;
+
+      if ( p_msc->xferred_len >= p_msc->total_len )
+      {
+        // Data Stage is complete
+        p_msc->stage = MSC_STAGE_STATUS;
+      }
+      else
+      {
+        // READ10 & WRITE10 Can be executed with large bulk of data e.g write 8K bytes (several flash write)
+        // We break it into multiple smaller command whose data size is up to CFG_TUD_MSC_BUFSIZE
+        if (SCSI_CMD_READ_10 == p_cbw->command[0])
+        {
+          proc_read10_cmd(rhport, p_msc);
+        }
+        else if (SCSI_CMD_WRITE_10 == p_cbw->command[0])
+        {
+          proc_write10_cmd(rhport, p_msc);
+        }else
+        {
+          // No other command take more than one transfer yet -> unlikely error
+          TU_BREAKPOINT();
+        }
+      }
+    break;
+
+    case MSC_STAGE_STATUS: break; // processed immediately after this switch
+    default : break;
+  }
+
+  if ( p_msc->stage == MSC_STAGE_STATUS )
+  {
+    // Either endpoints is stalled, need to wait until it is cleared by host
+    if ( dcd_edpt_stalled(rhport,  p_msc->ep_in) || dcd_edpt_stalled(rhport,  p_msc->ep_out) )
+    {
+      // simulate an transfer complete with adjusted parameters --> this driver callback will fired again
+      dcd_event_xfer_complete(rhport, p_msc->ep_out, 0, XFER_RESULT_SUCCESS, false);
+    }
+    else
+    {
+      // Invoke complete callback if defined
+      if ( SCSI_CMD_READ_10 == p_cbw->command[0])
+      {
+        if ( tud_msc_read10_complete_cb ) tud_msc_read10_complete_cb(p_cbw->lun);
+      }
+      else if ( SCSI_CMD_WRITE_10 == p_cbw->command[0] )
+      {
+        if ( tud_msc_write10_complete_cb ) tud_msc_write10_complete_cb(p_cbw->lun);
+      }
+      else
+      {
+        if ( tud_msc_scsi_complete_cb ) tud_msc_scsi_complete_cb(p_cbw->lun, p_cbw->command);
+      }
+
+      // Move to default CMD stage after sending status
+      p_msc->stage         = MSC_STAGE_CMD;
+
+      TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)) );
+
+      //------------- Queue the next CBW -------------//
+      TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
+    }
+  }
+
+  return true;
+}
+
+/*------------------------------------------------------------------*/
+/* SCSI Command Process
+ *------------------------------------------------------------------*/
+static void proc_read10_cmd(uint8_t rhport, mscd_interface_t* p_msc)
+{
+  msc_cbw_t const * p_cbw = &p_msc->cbw;
+  msc_csw_t       * p_csw = &p_msc->csw;
+
+  uint16_t const block_sz = p_cbw->total_bytes / rdwr10_get_blockcount(p_cbw->command);
+
+  // Adjust lba with transferred bytes
+  uint32_t const lba = rdwr10_get_lba(p_cbw->command) + (p_msc->xferred_len / block_sz);
+
+  // remaining bytes capped at class buffer
+  int32_t nbytes = (int32_t) tu_min32(sizeof(_mscd_buf), p_cbw->total_bytes-p_msc->xferred_len);
+
+  // Application can consume smaller bytes
+  nbytes = tud_msc_read10_cb(p_cbw->lun, lba, p_msc->xferred_len % block_sz, _mscd_buf, (uint32_t) nbytes);
+
+  if ( nbytes < 0 )
+  {
+    // negative means error -> pipe is stalled & status in CSW set to failed
+    p_csw->data_residue = p_cbw->total_bytes - p_msc->xferred_len;
+    p_csw->status       = MSC_CSW_STATUS_FAILED;
+
+    tud_msc_set_sense(p_cbw->lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00); // Sense = Invalid Command Operation
+    dcd_edpt_stall(rhport, p_msc->ep_in);
+  }
+  else if ( nbytes == 0 )
+  {
+    // zero means not ready -> simulate an transfer complete so that this driver callback will fired again
+    dcd_event_xfer_complete(rhport, p_msc->ep_in, 0, XFER_RESULT_SUCCESS, false);
+  }
+  else
+  {
+    TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in, _mscd_buf, nbytes), );
+  }
+}
+
+static void proc_write10_cmd(uint8_t rhport, mscd_interface_t* p_msc)
+{
+  msc_cbw_t const * p_cbw = &p_msc->cbw;
+
+  // remaining bytes capped at class buffer
+  int32_t nbytes = (int32_t) tu_min32(sizeof(_mscd_buf), p_cbw->total_bytes-p_msc->xferred_len);
+
+  // Write10 callback will be called later when usb transfer complete
+  TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, _mscd_buf, nbytes), );
+}
+
+#endif
diff --git a/src/class/msc/msc_device.h b/src/class/msc/msc_device.h
new file mode 100644
index 000000000..c9e4139e9
--- /dev/null
+++ b/src/class/msc/msc_device.h
@@ -0,0 +1,186 @@
+/**************************************************************************/
+/*!
+    @file     msc_device.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#ifndef _TUSB_MSC_DEVICE_H_
+#define _TUSB_MSC_DEVICE_H_
+
+#include "common/tusb_common.h"
+#include "device/usbd.h"
+#include "msc.h"
+
+
+//--------------------------------------------------------------------+
+// Class Driver Configuration
+//--------------------------------------------------------------------+
+TU_VERIFY_STATIC(CFG_TUD_MSC_BUFSIZE < UINT16_MAX, "Size is not correct");
+
+#ifndef CFG_TUD_MSC_MAXLUN
+  #define CFG_TUD_MSC_MAXLUN 1
+#elif CFG_TUD_MSC_MAXLUN == 0 || CFG_TUD_MSC_MAXLUN > 16
+  #error MSC Device: Incorrect setting of MAX LUN
+#endif
+
+#ifndef CFG_TUD_MSC_BUFSIZE
+  #error CFG_TUD_MSC_BUFSIZE must be defined, value of CFG_TUD_MSC_BLOCK_SZ should work well, the more the better
+#endif
+
+#ifndef CFG_TUD_MSC_VENDOR
+  #error CFG_TUD_MSC_VENDOR 8-byte name must be defined
+#endif
+
+#ifndef CFG_TUD_MSC_PRODUCT
+  #error CFG_TUD_MSC_PRODUCT 16-byte name must be defined
+#endif
+
+#ifndef CFG_TUD_MSC_PRODUCT_REV
+  #error CFG_TUD_MSC_PRODUCT_REV 4-byte string must be defined
+#endif
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/** \addtogroup ClassDriver_MSC
+ *  @{
+ * \defgroup MSC_Device Device
+ *  @{ */
+
+
+// Check if MSC interface is ready to use
+bool tud_msc_ready(void);
+bool tud_msc_set_sense(uint8_t lun, uint8_t sense_key, uint8_t add_sense_code, uint8_t add_sense_qualifier);
+
+//--------------------------------------------------------------------+
+// APPLICATION CALLBACK (WEAK is optional)
+//--------------------------------------------------------------------+
+/**
+ * Callback invoked when received \ref SCSI_CMD_READ_10 command
+ * \param[in]   lun         Logical unit number
+ * \param[in]   lba         Logical Block Address to be read
+ * \param[in]   offset      Byte offset from LBA
+ * \param[out]  buffer      Buffer which application need to update with the response data.
+ * \param[in]   bufsize     Requested bytes
+ *
+ * \return      Number of byte read, if it is less than requested bytes by \a \b bufsize. Tinyusb will transfer
+ *              this amount first and invoked this again for remaining data.
+ *
+ * \retval      zero        Indicate application is not ready yet to response e.g disk I/O is not complete.
+ *                          tinyusb will invoke this callback with the same parameters again some time later.
+ *
+ * \retval      negative    Indicate error e.g reading disk I/O. tinyusb will \b STALL the corresponding
+ *                          endpoint and return failed status in command status wrapper phase.
+ */
+int32_t tud_msc_read10_cb (uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize);
+
+/**
+ * Callback invoked when received \ref SCSI_CMD_WRITE_10 command
+ * \param[in]   lun         Logical unit number
+ * \param[in]   lba         Logical Block Address to be write
+ * \param[in]   offset      Byte offset from LBA
+ * \param[out]  buffer      Buffer which holds written data.
+ * \param[in]   bufsize     Requested bytes
+ *
+ * \return      Number of byte written, if it is less than requested bytes by \a \b bufsize. Tinyusb will proceed with
+ *              other work and invoked this again with adjusted parameters.
+ *
+ * \retval      zero        Indicate application is not ready yet e.g disk I/O is not complete.
+ *                          Tinyusb will invoke this callback with the same parameters again some time later.
+ *
+ * \retval      negative    Indicate error writing disk I/O. Tinyusb will \b STALL the corresponding
+ *                          endpoint and return failed status in command status wrapper phase.
+ */
+int32_t tud_msc_write10_cb (uint8_t lun, uint32_t lba, uint32_t offset, uint8_t* buffer, uint32_t bufsize);
+
+// Invoked to determine the disk size
+void tud_msc_capacity_cb(uint8_t lun, uint32_t* block_count, uint16_t* block_size);
+
+/**
+ * Callback invoked when received an SCSI command not in built-in list below.
+ * \param[in]   lun         Logical unit number
+ * \param[in]   scsi_cmd    SCSI command contents which application must examine to response accordingly
+ * \param[out]  buffer      Buffer for SCSI Data Stage.
+ *                            - For INPUT: application must fill this with response.
+ *                            - For OUTPUT it holds the Data from host
+ * \param[in]   bufsize     Buffer's length.
+ *
+ * \return      Actual bytes processed, can be zero for no-data command.
+ * \retval      negative    Indicate error e.g unsupported command, tinyusb will \b STALL the corresponding
+ *                          endpoint and return failed status in command status wrapper phase.
+ *
+ * \note        Following command is automatically handled by tinyusb stack, callback should not be worried:
+ *              - READ_CAPACITY10, READ_FORMAT_CAPACITY, INQUIRY, MODE_SENSE6, REQUEST_SENSE
+ *              - READ10 and WRITE10 has their own callbacks
+ */
+int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer, uint16_t bufsize);
+
+/*------------- Optional callbacks : Could be used by application to free up resources -------------*/
+
+// Invoked when Read10 command is complete
+ATTR_WEAK void tud_msc_read10_complete_cb(uint8_t lun);
+
+// Invoke when Write10 command is complete
+ATTR_WEAK void tud_msc_write10_complete_cb(uint8_t lun);
+
+// Invoked when command in tud_msc_scsi_cb is complete
+ATTR_WEAK void tud_msc_scsi_complete_cb(uint8_t lun, uint8_t const scsi_cmd[16]);
+
+// Hook to make a mass storage device read-only. TODO remove
+ATTR_WEAK bool tud_msc_is_writable_cb(uint8_t lun);
+
+/** @} */
+/** @} */
+
+//--------------------------------------------------------------------+
+// USBD-CLASS DRIVER API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+void mscd_init(void);
+bool mscd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length);
+bool mscd_control_request(uint8_t rhport, tusb_control_request_t const * p_request);
+bool mscd_control_request_complete (uint8_t rhport, tusb_control_request_t const * p_request);
+bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
+void mscd_reset(uint8_t rhport);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_MSC_DEVICE_H_ */
diff --git a/src/class/msc/msc_host.c b/src/class/msc/msc_host.c
new file mode 100644
index 000000000..86669b279
--- /dev/null
+++ b/src/class/msc/msc_host.c
@@ -0,0 +1,427 @@
+/**************************************************************************/
+/*!
+    @file     msc_host.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "tusb_option.h"
+
+#if TUSB_OPT_HOST_ENABLED & CFG_TUH_MSC
+
+#define _TINY_USB_SOURCE_FILE_
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "common/tusb_common.h"
+#include "msc_host.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+CFG_TUSB_MEM_SECTION static msch_interface_t msch_data[CFG_TUSB_HOST_DEVICE_MAX];
+
+//------------- Initalization Data -------------//
+static osal_semaphore_def_t msch_sem_def;
+static osal_semaphore_t msch_sem_hdl;
+
+// buffer used to read scsi information when mounted, largest response data currently is inquiry
+CFG_TUSB_MEM_SECTION ATTR_ALIGNED(4) static uint8_t msch_buffer[sizeof(scsi_inquiry_resp_t)];
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// PUBLIC API
+//--------------------------------------------------------------------+
+bool tuh_msc_is_mounted(uint8_t dev_addr)
+{
+  return  tuh_device_is_configured(dev_addr) && // is configured can be omitted
+          msch_data[dev_addr-1].is_initialized;
+}
+
+bool tuh_msc_is_busy(uint8_t dev_addr)
+{
+  return  msch_data[dev_addr-1].is_initialized &&
+          hcd_edpt_busy(dev_addr, msch_data[dev_addr-1].ep_in);
+}
+
+uint8_t const* tuh_msc_get_vendor_name(uint8_t dev_addr)
+{
+  return msch_data[dev_addr-1].is_initialized ? msch_data[dev_addr-1].vendor_id : NULL;
+}
+
+uint8_t const* tuh_msc_get_product_name(uint8_t dev_addr)
+{
+  return msch_data[dev_addr-1].is_initialized ? msch_data[dev_addr-1].product_id : NULL;
+}
+
+tusb_error_t tuh_msc_get_capacity(uint8_t dev_addr, uint32_t* p_last_lba, uint32_t* p_block_size)
+{
+  if ( !msch_data[dev_addr-1].is_initialized )   return TUSB_ERROR_MSCH_DEVICE_NOT_MOUNTED;
+  TU_ASSERT(p_last_lba != NULL && p_block_size != NULL, TUSB_ERROR_INVALID_PARA);
+
+  (*p_last_lba)   = msch_data[dev_addr-1].last_lba;
+  (*p_block_size) = (uint32_t) msch_data[dev_addr-1].block_size;
+
+  return TUSB_ERROR_NONE;
+}
+
+//--------------------------------------------------------------------+
+// PUBLIC API: SCSI COMMAND
+//--------------------------------------------------------------------+
+static inline void msc_cbw_add_signature(msc_cbw_t *p_cbw, uint8_t lun)
+{
+  p_cbw->signature  = MSC_CBW_SIGNATURE;
+  p_cbw->tag        = 0xCAFECAFE;
+  p_cbw->lun        = lun;
+}
+
+static tusb_error_t msch_command_xfer(uint8_t dev_addr, msch_interface_t * p_msch, void* p_buffer)
+{
+  if ( NULL != p_buffer)
+  { // there is data phase
+    if (p_msch->cbw.dir & TUSB_DIR_IN_MASK)
+    {
+      TU_ASSERT( hcd_pipe_xfer(dev_addr, p_msch->ep_out, (uint8_t*) &p_msch->cbw, sizeof(msc_cbw_t), false), TUSB_ERROR_FAILED );
+      TU_ASSERT( hcd_pipe_queue_xfer(dev_addr, p_msch->ep_in , p_buffer, p_msch->cbw.total_bytes), TUSB_ERROR_FAILED );
+    }else
+    {
+      TU_ASSERT( hcd_pipe_queue_xfer(dev_addr, p_msch->ep_out, (uint8_t*) &p_msch->cbw, sizeof(msc_cbw_t)), TUSB_ERROR_FAILED );
+      TU_ASSERT( hcd_pipe_xfer(dev_addr, p_msch->ep_out , p_buffer, p_msch->cbw.total_bytes, false), TUSB_ERROR_FAILED );
+    }
+  }
+
+  TU_ASSERT( hcd_pipe_xfer(dev_addr, p_msch->ep_in , (uint8_t*) &p_msch->csw, sizeof(msc_csw_t), true), TUSB_ERROR_FAILED);
+
+  return TUSB_ERROR_NONE;
+}
+
+tusb_error_t tusbh_msc_inquiry(uint8_t dev_addr, uint8_t lun, uint8_t *p_data)
+{
+  msch_interface_t* p_msch = &msch_data[dev_addr-1];
+
+  //------------- Command Block Wrapper -------------//
+  msc_cbw_add_signature(&p_msch->cbw, lun);
+  p_msch->cbw.total_bytes = sizeof(scsi_inquiry_resp_t);
+  p_msch->cbw.dir        = TUSB_DIR_IN_MASK;
+  p_msch->cbw.cmd_len    = sizeof(scsi_inquiry_t);
+
+  //------------- SCSI command -------------//
+  scsi_inquiry_t cmd_inquiry =
+  {
+      .cmd_code     = SCSI_CMD_INQUIRY,
+      .alloc_length = sizeof(scsi_inquiry_resp_t)
+  };
+
+  memcpy(p_msch->cbw.command, &cmd_inquiry, p_msch->cbw.cmd_len);
+
+  TU_ASSERT_ERR ( msch_command_xfer(dev_addr, p_msch, p_data) );
+
+  return TUSB_ERROR_NONE;
+}
+
+tusb_error_t tusbh_msc_read_capacity10(uint8_t dev_addr, uint8_t lun, uint8_t *p_data)
+{
+  msch_interface_t* p_msch = &msch_data[dev_addr-1];
+
+  //------------- Command Block Wrapper -------------//
+  msc_cbw_add_signature(&p_msch->cbw, lun);
+  p_msch->cbw.total_bytes = sizeof(scsi_read_capacity10_resp_t);
+  p_msch->cbw.dir        = TUSB_DIR_IN_MASK;
+  p_msch->cbw.cmd_len    = sizeof(scsi_read_capacity10_t);
+
+  //------------- SCSI command -------------//
+  scsi_read_capacity10_t cmd_read_capacity10 =
+  {
+      .cmd_code                 = SCSI_CMD_READ_CAPACITY_10,
+      .lba                      = 0,
+      .partial_medium_indicator = 0
+  };
+
+  memcpy(p_msch->cbw.command, &cmd_read_capacity10, p_msch->cbw.cmd_len);
+
+  TU_ASSERT_ERR ( msch_command_xfer(dev_addr, p_msch, p_data) );
+
+  return TUSB_ERROR_NONE;
+}
+
+tusb_error_t tuh_msc_request_sense(uint8_t dev_addr, uint8_t lun, uint8_t *p_data)
+{
+  (void) lun; // TODO [MSCH] multiple lun support
+
+  msch_interface_t* p_msch = &msch_data[dev_addr-1];
+
+  //------------- Command Block Wrapper -------------//
+  p_msch->cbw.total_bytes = 18;
+  p_msch->cbw.dir        = TUSB_DIR_IN_MASK;
+  p_msch->cbw.cmd_len    = sizeof(scsi_request_sense_t);
+
+  //------------- SCSI command -------------//
+  scsi_request_sense_t cmd_request_sense =
+  {
+      .cmd_code     = SCSI_CMD_REQUEST_SENSE,
+      .alloc_length = 18
+  };
+
+  memcpy(p_msch->cbw.command, &cmd_request_sense, p_msch->cbw.cmd_len);
+
+  TU_ASSERT_ERR ( msch_command_xfer(dev_addr, p_msch, p_data) );
+
+  return TUSB_ERROR_NONE;
+}
+
+tusb_error_t tuh_msc_test_unit_ready(uint8_t dev_addr, uint8_t lun,  msc_csw_t * p_csw)
+{
+  msch_interface_t* p_msch = &msch_data[dev_addr-1];
+
+  //------------- Command Block Wrapper -------------//
+  msc_cbw_add_signature(&p_msch->cbw, lun);
+
+  p_msch->cbw.total_bytes = 0; // Number of bytes
+  p_msch->cbw.dir        = TUSB_DIR_OUT;
+  p_msch->cbw.cmd_len    = sizeof(scsi_test_unit_ready_t);
+
+  //------------- SCSI command -------------//
+  scsi_test_unit_ready_t cmd_test_unit_ready =
+  {
+      .cmd_code = SCSI_CMD_TEST_UNIT_READY,
+      .lun      = lun // according to wiki
+  };
+
+  memcpy(p_msch->cbw.command, &cmd_test_unit_ready, p_msch->cbw.cmd_len);
+
+  // TODO MSCH refractor test uinit ready
+  TU_ASSERT( hcd_pipe_xfer(dev_addr, p_msch->ep_out, (uint8_t*) &p_msch->cbw, sizeof(msc_cbw_t), false), TUSB_ERROR_FAILED );
+  TU_ASSERT( hcd_pipe_xfer(dev_addr, p_msch->ep_in , (uint8_t*) p_csw, sizeof(msc_csw_t), true), TUSB_ERROR_FAILED );
+
+  return TUSB_ERROR_NONE;
+}
+
+tusb_error_t  tuh_msc_read10(uint8_t dev_addr, uint8_t lun, void * p_buffer, uint32_t lba, uint16_t block_count)
+{
+  msch_interface_t* p_msch = &msch_data[dev_addr-1];
+
+  //------------- Command Block Wrapper -------------//
+  msc_cbw_add_signature(&p_msch->cbw, lun);
+
+  p_msch->cbw.total_bytes = p_msch->block_size*block_count; // Number of bytes
+  p_msch->cbw.dir        = TUSB_DIR_IN_MASK;
+  p_msch->cbw.cmd_len    = sizeof(scsi_read10_t);
+
+  //------------- SCSI command -------------//
+  scsi_read10_t cmd_read10 =
+  {
+      .cmd_code    = SCSI_CMD_READ_10,
+      .lba         = __n2be(lba),
+      .block_count = tu_u16_le2be(block_count)
+  };
+
+  memcpy(p_msch->cbw.command, &cmd_read10, p_msch->cbw.cmd_len);
+
+  TU_ASSERT_ERR ( msch_command_xfer(dev_addr, p_msch, p_buffer));
+
+  return TUSB_ERROR_NONE;
+}
+
+tusb_error_t tuh_msc_write10(uint8_t dev_addr, uint8_t lun, void const * p_buffer, uint32_t lba, uint16_t block_count)
+{
+  msch_interface_t* p_msch = &msch_data[dev_addr-1];
+
+  //------------- Command Block Wrapper -------------//
+  msc_cbw_add_signature(&p_msch->cbw, lun);
+
+  p_msch->cbw.total_bytes = p_msch->block_size*block_count; // Number of bytes
+  p_msch->cbw.dir        = TUSB_DIR_OUT;
+  p_msch->cbw.cmd_len    = sizeof(scsi_write10_t);
+
+  //------------- SCSI command -------------//
+  scsi_write10_t cmd_write10 =
+  {
+      .cmd_code    = SCSI_CMD_WRITE_10,
+      .lba         = __n2be(lba),
+      .block_count = tu_u16_le2be(block_count)
+  };
+
+  memcpy(p_msch->cbw.command, &cmd_write10, p_msch->cbw.cmd_len);
+
+  TU_ASSERT_ERR ( msch_command_xfer(dev_addr, p_msch, (void*) p_buffer));
+
+  return TUSB_ERROR_NONE;
+}
+
+//--------------------------------------------------------------------+
+// CLASS-USBH API (don't require to verify parameters)
+//--------------------------------------------------------------------+
+void msch_init(void)
+{
+  tu_memclr(msch_data, sizeof(msch_interface_t)*CFG_TUSB_HOST_DEVICE_MAX);
+  msch_sem_hdl = osal_semaphore_create(&msch_sem_def);
+}
+
+bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)
+{
+  TU_VERIFY (MSC_SUBCLASS_SCSI == itf_desc->bInterfaceSubClass &&
+             MSC_PROTOCOL_BOT  == itf_desc->bInterfaceProtocol);
+
+  msch_interface_t* p_msc = &msch_data[dev_addr-1];
+
+  //------------- Open Data Pipe -------------//
+  tusb_desc_endpoint_t const * ep_desc = (tusb_desc_endpoint_t const *) tu_desc_next(itf_desc);
+
+  for(uint32_t i=0; i<2; i++)
+  {
+    TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType);
+    TU_ASSERT(TUSB_XFER_BULK == ep_desc->bmAttributes.xfer);
+
+    TU_ASSERT(hcd_edpt_open(rhport, dev_addr, ep_desc));
+
+    if ( tu_edpt_dir(ep_desc->bEndpointAddress) == TUSB_DIR_IN )
+    {
+      p_msc->ep_in = ep_desc->bEndpointAddress;
+    }else
+    {
+      p_msc->ep_out = ep_desc->bEndpointAddress;
+    }
+
+    ep_desc = (tusb_desc_endpoint_t const *) tu_desc_next(ep_desc);
+  }
+
+  p_msc->itf_numr = itf_desc->bInterfaceNumber;
+  (*p_length) += sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
+
+  //------------- Get Max Lun -------------//
+  tusb_control_request_t request = {
+        .bmRequestType_bit = { .recipient = TUSB_REQ_RCPT_INTERFACE, .type = TUSB_REQ_TYPE_CLASS, .direction = TUSB_DIR_IN },
+        .bRequest = MSC_REQ_GET_MAX_LUN,
+        .wValue = 0,
+        .wIndex = p_msc->itf_numr,
+        .wLength = 1
+  };
+  // TODO STALL means zero
+  TU_ASSERT( usbh_control_xfer( dev_addr, &request, msch_buffer ) );
+  p_msc->max_lun = msch_buffer[0];
+
+#if 0
+  //------------- Reset -------------//
+  request = (tusb_control_request_t) {
+        .bmRequestType_bit = { .recipient = TUSB_REQ_RCPT_INTERFACE, .type = TUSB_REQ_TYPE_CLASS, .direction = TUSB_DIR_OUT },
+        .bRequest = MSC_REQ_RESET,
+        .wValue = 0,
+        .wIndex = p_msc->itf_numr,
+        .wLength = 0
+  };
+  TU_ASSERT( usbh_control_xfer( dev_addr, &request, NULL ) );
+#endif
+
+  enum { SCSI_XFER_TIMEOUT = 2000 };
+  //------------- SCSI Inquiry -------------//
+  tusbh_msc_inquiry(dev_addr, 0, msch_buffer);
+  TU_ASSERT( osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT) );
+
+  memcpy(p_msc->vendor_id , ((scsi_inquiry_resp_t*) msch_buffer)->vendor_id , 8);
+  memcpy(p_msc->product_id, ((scsi_inquiry_resp_t*) msch_buffer)->product_id, 16);
+
+  //------------- SCSI Read Capacity 10 -------------//
+  tusbh_msc_read_capacity10(dev_addr, 0, msch_buffer);
+  TU_ASSERT( osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT));
+
+  // NOTE: my toshiba thumb-drive stall the first Read Capacity and require the sequence
+  // Read Capacity --> Stalled --> Clear Stall --> Request Sense --> Read Capacity (2) to work
+  if ( hcd_edpt_stalled(dev_addr, p_msc->ep_in) )
+  {
+    // clear stall TODO abstract clear stall function
+    request = (tusb_control_request_t) {
+      .bmRequestType_bit = { .recipient = TUSB_REQ_RCPT_ENDPOINT, .type = TUSB_REQ_TYPE_STANDARD, .direction = TUSB_DIR_OUT },
+          .bRequest = TUSB_REQ_CLEAR_FEATURE,
+          .wValue = 0,
+          .wIndex = p_msc->ep_in,
+          .wLength = 0
+    };
+
+    TU_ASSERT(usbh_control_xfer( dev_addr, &request, NULL ));
+
+    hcd_edpt_clear_stall(dev_addr, p_msc->ep_in);
+    TU_ASSERT( osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT) ); // wait for SCSI status
+
+    //------------- SCSI Request Sense -------------//
+    (void) tuh_msc_request_sense(dev_addr, 0, msch_buffer);
+    TU_ASSERT(osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT));
+
+    //------------- Re-read SCSI Read Capactity -------------//
+    tusbh_msc_read_capacity10(dev_addr, 0, msch_buffer);
+    TU_ASSERT(osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT));
+  }
+
+  p_msc->last_lba   = __be2n( ((scsi_read_capacity10_resp_t*)msch_buffer)->last_lba );
+  p_msc->block_size = (uint16_t) __be2n( ((scsi_read_capacity10_resp_t*)msch_buffer)->block_size );
+
+  p_msc->is_initialized = true;
+
+  tuh_msc_mounted_cb(dev_addr);
+
+  return true;
+}
+
+void msch_isr(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes)
+{
+  msch_interface_t* p_msc = &msch_data[dev_addr-1];
+  if ( ep_addr == p_msc->ep_in )
+  {
+    if (p_msc->is_initialized)
+    {
+      tuh_msc_isr(dev_addr, event, xferred_bytes);
+    }else
+    { // still initializing under open subtask
+      osal_semaphore_post(msch_sem_hdl, true);
+    }
+  }
+}
+
+void msch_close(uint8_t dev_addr)
+{
+  tu_memclr(&msch_data[dev_addr-1], sizeof(msch_interface_t));
+  osal_semaphore_reset(msch_sem_hdl);
+
+  tuh_msc_unmounted_cb(dev_addr); // invoke Application Callback
+}
+
+//--------------------------------------------------------------------+
+// INTERNAL & HELPER
+//--------------------------------------------------------------------+
+
+
+#endif
diff --git a/src/class/msc/msc_host.h b/src/class/msc/msc_host.h
new file mode 100644
index 000000000..968d221b4
--- /dev/null
+++ b/src/class/msc/msc_host.h
@@ -0,0 +1,222 @@
+/**************************************************************************/
+/*!
+    @file     msc_host.h
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#ifndef _TUSB_MSC_HOST_H_
+#define _TUSB_MSC_HOST_H_
+
+#include "common/tusb_common.h"
+#include "host/usbh.h"
+#include "msc.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/** \addtogroup ClassDriver_MSC
+ *  @{
+ * \defgroup MSC_Host Host
+ *  The interface API includes status checking function, data transferring function and callback functions
+ *  @{ */
+//--------------------------------------------------------------------+
+// MASS STORAGE Application API
+//--------------------------------------------------------------------+
+/** \brief      Check if device supports MassStorage interface or not
+ * \param[in]   dev_addr    device address
+ * \retval      true if device supports
+ * \retval      false if device does not support or is not mounted
+ */
+bool          tuh_msc_is_mounted(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
+
+/** \brief      Check if the interface is currently busy or not
+ * \param[in]   dev_addr device address
+ * \retval      true if the interface is busy meaning the stack is still transferring/waiting data from/to device
+ * \retval      false if the interface is not busy meaning the stack successfully transferred data from/to device
+ * \note        This function is used to check if previous transfer is complete (success or error), so that the next transfer
+ *              can be scheduled. User needs to make sure the corresponding interface is mounted (by \ref tuh_msc_is_mounted)
+ *              before calling this function
+ */
+bool          tuh_msc_is_busy(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
+
+/** \brief      Get SCSI vendor's name of MassStorage device
+ * \param[in]   dev_addr device address
+ * \return      pointer to vendor's name or NULL if specified device does not support MassStorage
+ * \note        SCSI vendor's name is 8-byte length field in \ref scsi_inquiry_data_t. During enumeration, the stack has already
+ *              retrieved (via SCSI INQUIRY) and store this information internally. There is no need for application to re-send SCSI INQUIRY
+ *              command or allocate buffer for this.
+ */
+uint8_t const* tuh_msc_get_vendor_name(uint8_t dev_addr);
+
+/** \brief      Get SCSI product's name of MassStorage device
+ * \param[in]   dev_addr device address
+ * \return      pointer to product's name or NULL if specified device does not support MassStorage
+ * \note        SCSI product's name is 16-byte length field in \ref scsi_inquiry_data_t. During enumeration, the stack has already
+ *              retrieved (via SCSI INQUIRY) and store this information internally. There is no need for application to re-send SCSI INQUIRY
+ *              command or allocate buffer for this.
+ */
+uint8_t const* tuh_msc_get_product_name(uint8_t dev_addr);
+
+/** \brief      Get SCSI Capacity of MassStorage device
+ * \param[in]   dev_addr device address
+ * \param[out]  p_last_lba Last Logical Block Address of device
+ * \param[out]  p_block_size Block Size of device in bytes
+ * \retval      pointer to product's name or NULL if specified device does not support MassStorage
+ * \note        MassStorage's capacity can be computed by last LBA x block size (in bytes). During enumeration, the stack has already
+ *              retrieved (via SCSI READ CAPACITY 10) and store this information internally. There is no need for application
+ *              to re-send SCSI READ CAPACITY 10 command
+ */
+tusb_error_t tuh_msc_get_capacity(uint8_t dev_addr, uint32_t* p_last_lba, uint32_t* p_block_size);
+
+/** \brief 			Perform SCSI READ 10 command to read data from MassStorage device
+ * \param[in]		dev_addr	device address
+ * \param[in]		lun       Targeted Logical Unit
+ * \param[out]	p_buffer  Buffer used to store data read from device. Must be accessible by USB controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \param[in]		lba       Starting Logical Block Address to be read
+ * \param[in]		block_count Number of Block to be read
+ * \retval      TUSB_ERROR_NONE on success
+ * \retval      TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval      TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval      TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note        This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
+ */
+tusb_error_t tuh_msc_read10 (uint8_t dev_addr, uint8_t lun, void * p_buffer, uint32_t lba, uint16_t block_count) ATTR_WARN_UNUSED_RESULT;
+
+/** \brief 			Perform SCSI WRITE 10 command to write data to MassStorage device
+ * \param[in]		dev_addr	device address
+ * \param[in]		lun       Targeted Logical Unit
+ * \param[in]	  p_buffer  Buffer containing data. Must be accessible by USB controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \param[in]		lba       Starting Logical Block Address to be written
+ * \param[in]		block_count Number of Block to be written
+ * \retval      TUSB_ERROR_NONE on success
+ * \retval      TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval      TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval      TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note        This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
+ */
+tusb_error_t tuh_msc_write10(uint8_t dev_addr, uint8_t lun, void const * p_buffer, uint32_t lba, uint16_t block_count) ATTR_WARN_UNUSED_RESULT;
+
+/** \brief 			Perform SCSI REQUEST SENSE command, used to retrieve sense data from MassStorage device
+ * \param[in]		dev_addr	device address
+ * \param[in]		lun       Targeted Logical Unit
+ * \param[in]	  p_data    Buffer to store response's data from device. Must be accessible by USB controller (see \ref CFG_TUSB_MEM_SECTION)
+ * \retval      TUSB_ERROR_NONE on success
+ * \retval      TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval      TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval      TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note        This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
+ */
+tusb_error_t tuh_msc_request_sense(uint8_t dev_addr, uint8_t lun, uint8_t *p_data);
+
+/** \brief 			Perform SCSI TEST UNIT READY command to test if MassStorage device is ready
+ * \param[in]		dev_addr	device address
+ * \param[in]		lun       Targeted Logical Unit
+ * \retval      TUSB_ERROR_NONE on success
+ * \retval      TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
+ * \retval      TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
+ * \retval      TUSB_ERROR_INVALID_PARA if input parameters are not correct
+ * \note        This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
+ */
+tusb_error_t tuh_msc_test_unit_ready(uint8_t dev_addr, uint8_t lun, msc_csw_t * p_csw) ATTR_WARN_UNUSED_RESULT; // TODO to be refractor
+
+//tusb_error_t  tusbh_msc_scsi_send(uint8_t dev_addr, uint8_t lun, bool is_direction_in,
+//                                  uint8_t const * p_command, uint8_t cmd_len,
+//                                  uint8_t * p_response, uint32_t resp_len) ATTR_WARN_UNUSED_RESULT;
+
+//------------- Application Callback -------------//
+/** \brief 			Callback function that will be invoked when a device with MassStorage interface is mounted
+ * \param[in]	  dev_addr Address of newly mounted device
+ * \note        This callback should be used by Application to set-up interface-related data
+ */
+void tuh_msc_mounted_cb(uint8_t dev_addr);
+
+/** \brief 			Callback function that will be invoked when a device with MassStorage interface is unmounted
+ * \param[in] 	dev_addr Address of newly unmounted device
+ * \note        This callback should be used by Application to tear-down interface-related data
+ */
+void tuh_msc_unmounted_cb(uint8_t dev_addr);
+
+/** \brief      Callback function that is invoked when an transferring event occurred
+ * \param[in]		dev_addr	Address of device
+ * \param[in]   event an value from \ref xfer_result_t
+ * \param[in]   xferred_bytes Number of bytes transferred via USB bus
+ * \note        event can be one of following
+ *              - XFER_RESULT_SUCCESS : previously scheduled transfer completes successfully.
+ *              - XFER_RESULT_FAILED   : previously scheduled transfer encountered a transaction error.
+ *              - XFER_RESULT_STALLED : previously scheduled transfer is stalled by device.
+ * \note
+ */
+void tuh_msc_isr(uint8_t dev_addr, xfer_result_t event, uint32_t xferred_bytes);
+
+
+//--------------------------------------------------------------------+
+// USBH-CLASS DRIVER API
+//--------------------------------------------------------------------+
+#ifdef _TINY_USB_SOURCE_FILE_
+
+typedef struct
+{
+  uint8_t itf_numr;
+  uint8_t  ep_in;
+  uint8_t  ep_out;
+
+  uint8_t  max_lun;
+  uint16_t block_size;
+  uint32_t last_lba; // last logical block address
+
+  volatile bool is_initialized;
+  uint8_t vendor_id[8];
+  uint8_t product_id[16];
+
+  msc_cbw_t cbw;
+  msc_csw_t csw;
+}msch_interface_t;
+
+void msch_init(void);
+bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length);
+void msch_isr(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
+void msch_close(uint8_t dev_addr);
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_MSC_HOST_H_ */
+
+/// @}
+/// @}
author	hathach <[email protected]>	2018-12-12 16:49:38 +0700
committer	hathach <[email protected]>	2018-12-12 16:49:38 +0700
commit	aa17ec60d3abdc3179d4d496bc072ed633bb67ce (patch)
tree	cda3b554b289ab50f650aa0e7b30adb79e33be22 /src/class
parent	c4a37237171855c0147699c263673c88f2fa6d5d (diff)
parent	908931320e206e6ae6610cfc56b2a0950f252172 (diff)