Merge branch 'develop'

15 files changed, 1738 insertions, 0 deletions

diff --git a/examples/obsolete/device/src/WinCDCdriver.inf b/examples/obsolete/device/src/WinCDCdriver.inf
new file mode 100644
index 000000000..b2ef6ba90
--- /dev/null
+++ b/examples/obsolete/device/src/WinCDCdriver.inf
@@ -0,0 +1,106 @@
+;************************************************************
+; Windows USB CDC ACM Setup File
+; Copyright (c) 2000 Microsoft Corporation
+
+
+[Version]
+Signature="$Windows NT$"
+Class=Ports
+ClassGuid={4D36E978-E325-11CE-BFC1-08002BE10318}
+Provider=%MFGNAME%
+LayoutFile=layout.inf
+CatalogFile=%MFGFILENAME%.cat
+DriverVer=11/15/2007,5.1.2600.0
+
+[Manufacturer]
+%MFGNAME%=DeviceList, NTamd64
+
+[DestinationDirs]
+DefaultDestDir=12
+
+
+;------------------------------------------------------------------------------
+;  Windows 2000/XP/Vista-32bit Sections
+;------------------------------------------------------------------------------
+
+[DriverInstall.nt]
+include=mdmcpq.inf
+CopyFiles=DriverCopyFiles.nt
+AddReg=DriverInstall.nt.AddReg
+
+[DriverCopyFiles.nt]
+usbser.sys,,,0x20
+
+[DriverInstall.nt.AddReg]
+HKR,,DevLoader,,*ntkern
+HKR,,NTMPDriver,,%DRIVERFILENAME%.sys
+HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"
+
+[DriverInstall.nt.Services]
+AddService=usbser, 0x00000002, DriverService.nt
+
+[DriverService.nt]
+DisplayName=%SERVICE%
+ServiceType=1
+StartType=3
+ErrorControl=1
+ServiceBinary=%12%\%DRIVERFILENAME%.sys
+
+;------------------------------------------------------------------------------
+;  Vista-64bit Sections
+;------------------------------------------------------------------------------
+
+[DriverInstall.NTamd64]
+include=mdmcpq.inf
+CopyFiles=DriverCopyFiles.NTamd64
+AddReg=DriverInstall.NTamd64.AddReg
+
+[DriverCopyFiles.NTamd64]
+%DRIVERFILENAME%.sys,,,0x20
+
+[DriverInstall.NTamd64.AddReg]
+HKR,,DevLoader,,*ntkern
+HKR,,NTMPDriver,,%DRIVERFILENAME%.sys
+HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"
+
+[DriverInstall.NTamd64.Services]
+AddService=usbser, 0x00000002, DriverService.NTamd64
+
+[DriverService.NTamd64]
+DisplayName=%SERVICE%
+ServiceType=1
+StartType=3
+ErrorControl=1
+ServiceBinary=%12%\%DRIVERFILENAME%.sys
+
+
+;------------------------------------------------------------------------------
+;  Vendor and Product ID Definitions
+;------------------------------------------------------------------------------
+; When developing your USB device, the VID and PID used in the PC side
+; application program and the firmware on the microcontroller must match.
+; Modify the below line to use your VID and PID.  Use the format as shown below.
+; Note: One INF file can be used for multiple devices with different VID and PIDs.
+; For each supported device, append ",USB\VID_xxxx&PID_yyyy" to the end of the line.
+;------------------------------------------------------------------------------
+[SourceDisksFiles]
+[SourceDisksNames]
+[DeviceList]
+%DESCRIPTION%=DriverInstall, USB\VID_CAFE&PID_4001&MI_00, USB\VID_CAFE&PID_4003&MI_00, USB\VID_CAFE&PID_4005&MI_00, USB\VID_CAFE&PID_4007&MI_00, USB\VID_CAFE&PID_4009&MI_00, USB\VID_CAFE&PID_400b&MI_00, USB\VID_CAFE&PID_400d&MI_00, USB\VID_CAFE&PID_400f&MI_00, USB\VID_CAFE&PID_4011&MI_00, USB\VID_CAFE&PID_4013&MI_00, USB\VID_CAFE&PID_4015&MI_00, USB\VID_CAFE&PID_4017&MI_00, USB\VID_CAFE&PID_4019&MI_00, USB\VID_CAFE&PID_401b&MI_00, USB\VID_CAFE&PID_401d&MI_00, USB\VID_CAFE&PID_401f&MI_00, USB\VID_CAFE&PID_4021&MI_00, USB\VID_CAFE&PID_4023&MI_00, USB\VID_CAFE&PID_4025&MI_00, USB\VID_CAFE&PID_4027&MI_00, USB\VID_CAFE&PID_4029&MI_00, USB\VID_CAFE&PID_402b&MI_00, USB\VID_CAFE&PID_402d&MI_00, USB\VID_CAFE&PID_402f&MI_00, USB\VID_CAFE&PID_4031&MI_00, USB\VID_CAFE&PID_4033&MI_00, USB\VID_CAFE&PID_4035&MI_00, USB\VID_CAFE&PID_4037&MI_00, USB\VID_CAFE&PID_4039&MI_00, USB\VID_CAFE&PID_403b&MI_00, USB\VID_CAFE&PID_403d&MI_00, USB\VID_CAFE&PID_403f&MI_00
+
+
+[DeviceList.NTamd64]
+%DESCRIPTION%=DriverInstall, USB\VID_CAFE&PID_4001&MI_00, USB\VID_CAFE&PID_4003&MI_00, USB\VID_CAFE&PID_4005&MI_00, USB\VID_CAFE&PID_4007&MI_00, USB\VID_CAFE&PID_4009&MI_00, USB\VID_CAFE&PID_400b&MI_00, USB\VID_CAFE&PID_400d&MI_00, USB\VID_CAFE&PID_400f&MI_00, USB\VID_CAFE&PID_4011&MI_00, USB\VID_CAFE&PID_4013&MI_00, USB\VID_CAFE&PID_4015&MI_00, USB\VID_CAFE&PID_4017&MI_00, USB\VID_CAFE&PID_4019&MI_00, USB\VID_CAFE&PID_401b&MI_00, USB\VID_CAFE&PID_401d&MI_00, USB\VID_CAFE&PID_401f&MI_00, USB\VID_CAFE&PID_4021&MI_00, USB\VID_CAFE&PID_4023&MI_00, USB\VID_CAFE&PID_4025&MI_00, USB\VID_CAFE&PID_4027&MI_00, USB\VID_CAFE&PID_4029&MI_00, USB\VID_CAFE&PID_402b&MI_00, USB\VID_CAFE&PID_402d&MI_00, USB\VID_CAFE&PID_402f&MI_00, USB\VID_CAFE&PID_4031&MI_00, USB\VID_CAFE&PID_4033&MI_00, USB\VID_CAFE&PID_4035&MI_00, USB\VID_CAFE&PID_4037&MI_00, USB\VID_CAFE&PID_4039&MI_00, USB\VID_CAFE&PID_403b&MI_00, USB\VID_CAFE&PID_403d&MI_00, USB\VID_CAFE&PID_403f&MI_00
+
+;------------------------------------------------------------------------------
+;  String Definitions
+;------------------------------------------------------------------------------
+;Modify these strings to customize your device
+;------------------------------------------------------------------------------
+[Strings]
+MFGFILENAME="CDC_vista"
+DRIVERFILENAME ="usbser"
+MFGNAME="tinyusb.org"
+INSTDISK="tinyusb CDC driver"
+DESCRIPTION="tinyusb Serial Port"
+SERVICE="USB RS-232 Emulation Driver"
\ No newline at end of file
diff --git a/examples/obsolete/device/src/app_os_prio.h b/examples/obsolete/device/src/app_os_prio.h
new file mode 100644
index 000000000..4f7fea2ce
--- /dev/null
+++ b/examples/obsolete/device/src/app_os_prio.h
@@ -0,0 +1,71 @@
+/**************************************************************************/
+/*!
+    @file     app_os_prio.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_APP_OS_PRIO_H_
+#define _TUSB_APP_OS_PRIO_H_
+
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#include "tusb.h"
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  #define LOWER_PRIO(x)   0   // does not matter
+#elif CFG_TUSB_OS == OPT_OS_FREERTOS
+  #define LOWER_PRIO(x)   ((x)-1) // freeRTOS lower number --> lower priority
+#else
+  #error Priority is not configured for this RTOS
+#endif
+
+enum {
+  STANDARD_APP_TASK_PRIO     = LOWER_PRIO(CFG_TUD_TASK_PRIO),  // Application Task is lower than usb system task
+  LED_BLINKING_APP_TASK_PRIO = LOWER_PRIO(STANDARD_APP_TASK_PRIO), // Blinking task is lower than normal task
+
+  KEYBOARD_APP_TASK_PRIO     = STANDARD_APP_TASK_PRIO,
+  MOUSE_APP_TASK_PRIO        = STANDARD_APP_TASK_PRIO,
+  CDC_SERIAL_APP_TASK_PRIO   = STANDARD_APP_TASK_PRIO,
+  MSC_APP_TASK_PRIO          = STANDARD_APP_TASK_PRIO
+};
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_APP_OS_PRIO_H_ */
diff --git a/examples/obsolete/device/src/cdc_device_app.c b/examples/obsolete/device/src/cdc_device_app.c
new file mode 100644
index 000000000..7989d86ab
--- /dev/null
+++ b/examples/obsolete/device/src/cdc_device_app.c
@@ -0,0 +1,111 @@
+/**************************************************************************/
+/*!
+    @file     cdc_device_app.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 "cdc_device_app.h"
+
+#if CFG_TUD_CDC
+
+#include "common/tusb_fifo.h" // TODO refractor
+#include "app_os_prio.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+enum { SERIAL_BUFFER_SIZE = 64 };
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+void cdc_serial_app_task(void* param);
+
+OSAL_TASK_DEF(cdc_task_def, "blinky", cdc_serial_app_task, CDC_SERIAL_APP_TASK_PRIO, 128);
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void cdc_serial_app_mount(uint8_t rhport)
+{
+}
+
+void cdc_serial_app_umount(uint8_t rhport)
+{
+
+}
+
+void tud_cdc_rx_cb(uint8_t itf)
+{
+
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION CODE
+//--------------------------------------------------------------------+
+void cdc_serial_app_init(void)
+{
+  osal_task_create(&cdc_task_def);
+}
+
+tusb_error_t cdc_serial_subtask(void);
+
+void cdc_serial_app_task(void* param)
+{
+  (void) param;
+
+  OSAL_TASK_BEGIN
+  cdc_serial_subtask();
+  OSAL_TASK_END
+}
+
+tusb_error_t cdc_serial_subtask(void)
+{
+  OSAL_SUBTASK_BEGIN
+
+  if ( tud_mounted() && tud_cdc_available() )
+  {
+    uint8_t buf[64];
+
+    // read and echo back
+    uint32_t count = tud_cdc_read(buf, sizeof(buf));
+
+    tud_cdc_write(buf, count);
+  }
+
+  OSAL_SUBTASK_END
+}
+
+#endif
diff --git a/examples/obsolete/device/src/cdc_device_app.h b/examples/obsolete/device/src/cdc_device_app.h
new file mode 100644
index 000000000..71b4bdf28
--- /dev/null
+++ b/examples/obsolete/device/src/cdc_device_app.h
@@ -0,0 +1,80 @@
+/**************************************************************************/
+/*!
+    @file     cdc_device_app.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 TBD
+ *  \defgroup TBD
+ *  \brief TBD
+ *
+ *  @{
+ */
+
+#ifndef _TUSB_CDCD_DEVICE_APP_H_
+#define _TUSB_CDCD_DEVICE_APP_H_
+
+#include "bsp/board.h"
+#include "tusb.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#if CFG_TUD_CDC
+
+void cdc_serial_app_init(void);
+void cdc_serial_app_task(void* param);
+
+void cdc_serial_app_mount(uint8_t rhport);
+void cdc_serial_app_umount(uint8_t rhport);
+
+#else
+
+#define cdc_serial_app_init()
+#define cdc_serial_app_task(x)
+#define cdc_serial_app_mount(x)
+#define cdc_serial_app_umount(x)
+
+#endif
+
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CDCD_DEVICE_APP_H_ */
+
+/** @} */
diff --git a/examples/obsolete/device/src/keyboard_device_app.c b/examples/obsolete/device/src/keyboard_device_app.c
new file mode 100644
index 000000000..5e14c56c9
--- /dev/null
+++ b/examples/obsolete/device/src/keyboard_device_app.c
@@ -0,0 +1,153 @@
+/**************************************************************************/
+/*!
+    @file     keyboard_device_app.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 "keyboard_device_app.h"
+
+#if CFG_TUD_HID_KEYBOARD
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "app_os_prio.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+CFG_TUSB_MEM_SECTION hid_keyboard_report_t keyboard_report;
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void keyboard_app_mount(uint8_t rhport)
+{
+
+}
+
+void keyboard_app_umount(uint8_t rhport)
+{
+
+}
+
+void tud_hid_keyboard_cb(uint8_t rhport, xfer_result_t event, uint32_t xferred_bytes)
+{
+  switch(event)
+  {
+    case XFER_RESULT_SUCCESS:
+    case XFER_RESULT_FAILED:
+    case XFER_RESULT_STALLED:
+    default: break;
+  }
+}
+
+uint16_t tud_hid_keyboard_get_report_cb(hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
+{
+  // get other than input report is not supported by this keyboard demo
+  if ( report_type != HID_REPORT_TYPE_INPUT ) return 0;
+
+  memcpy(buffer, &keyboard_report, reqlen);
+  return reqlen;
+}
+
+void tud_hid_keyboard_set_report_cb(hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
+{
+  // set other than output report is not supported by this keyboard demo
+  if ( report_type != HID_REPORT_TYPE_OUTPUT ) return;
+
+  uint8_t kbd_led = buffer[0];
+  uint32_t interval_divider = 1; // each LED will reduce blinking interval by a half
+
+  if (kbd_led & KEYBOARD_LED_NUMLOCK   ) interval_divider *= 2;
+  if (kbd_led & KEYBOARD_LED_CAPSLOCK  ) interval_divider *= 2;
+  if (kbd_led & KEYBOARD_LED_SCROLLLOCK) interval_divider *= 2;
+
+  // TODO remove
+  extern void led_blinking_set_interval(uint32_t ms);
+  led_blinking_set_interval( 1000 / interval_divider);
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION CODE
+//--------------------------------------------------------------------+
+void keyboard_app_init(void)
+{
+  osal_task_create(keyboard_app_task, "kbd", 128, NULL, KEYBOARD_APP_TASK_PRIO);
+}
+
+tusb_error_t keyboard_device_subtask(void);
+
+void keyboard_app_task(void* param)
+{
+  (void) param;
+
+  OSAL_TASK_BEGIN
+  keyboard_device_subtask();
+  OSAL_TASK_END
+}
+
+tusb_error_t keyboard_device_subtask(void)
+{
+  OSAL_SUBTASK_BEGIN
+
+  osal_task_delay(50);
+
+  if ( tud_mounted() && tud_hid_keyboard_ready(0) )
+  {
+    static uint32_t button_mask = 0;
+    uint32_t new_button_mask = board_buttons();
+
+    //------------- button pressed -------------//
+    if (button_mask != new_button_mask)
+    {
+      button_mask = new_button_mask;
+
+      for (uint8_t i=0; i<6; i++)
+      { // demo support up to 6 buttons, button0 = 'a', button1 = 'b', etc ...
+        keyboard_report.keycode[i] =  BIT_TEST_(button_mask, i) ? (0x04+i) : 0;
+      }
+
+      tud_hid_keyboard_send(0, &keyboard_report );
+    }
+  }
+
+  OSAL_SUBTASK_END
+}
+
+#endif
diff --git a/examples/obsolete/device/src/keyboard_device_app.h b/examples/obsolete/device/src/keyboard_device_app.h
new file mode 100644
index 000000000..45c843876
--- /dev/null
+++ b/examples/obsolete/device/src/keyboard_device_app.h
@@ -0,0 +1,79 @@
+/**************************************************************************/
+/*!
+    @file     keyboard_device_app.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 TBD
+ *  \defgroup TBD
+ *  \brief TBD
+ *
+ *  @{
+ */
+
+#ifndef _TUSB_KEYBOARDD_DEVICE_APP_H_
+#define _TUSB_KEYBOARDD_DEVICE_APP_H_
+
+#include "bsp/board.h"
+#include "tusb.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#if CFG_TUD_HID_KEYBOARD
+
+void keyboard_app_init(void);
+void keyboard_app_task(void* param);
+
+void keyboard_app_mount(uint8_t rhport);
+void keyboard_app_umount(uint8_t rhport);
+
+#else
+
+#define keyboard_app_init()
+#define keyboard_app_task(x)
+#define keyboard_app_mount(x)
+#define keyboard_app_umount(x)
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_KEYBOARDD_DEVICE_APP_H_ */
+
+/** @} */
diff --git a/examples/obsolete/device/src/main.c b/examples/obsolete/device/src/main.c
new file mode 100644
index 000000000..7de6fd32b
--- /dev/null
+++ b/examples/obsolete/device/src/main.c
@@ -0,0 +1,205 @@
+/**************************************************************************/
+/*!
+    @file     main.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
+//--------------------------------------------------------------------+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board.h"
+#include "app_os_prio.h"
+#include "tusb.h"
+
+#include "msc_device_app.h"
+#include "keyboard_device_app.h"
+#include "mouse_device_app.h"
+#include "cdc_device_app.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+void print_greeting(void);
+void led_blinking_init(void);
+void led_blinking_task(void* param);
+
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+// like a real RTOS, this function is a main loop invoking each task in application and never return
+void os_none_start_scheduler(void)
+{
+  while (1)
+  {
+    tusb_task();
+    led_blinking_task(NULL);
+
+    msc_app_task(NULL);
+    keyboard_app_task(NULL);
+    mouse_app_task(NULL);
+    cdc_serial_app_task(NULL);
+  }
+}
+#endif
+
+int main(void)
+{
+  board_init();
+  print_greeting();
+
+  tusb_init();
+
+  //------------- application task init -------------//
+  led_blinking_init();
+
+  msc_app_init();
+  keyboard_app_init();
+  mouse_app_init();
+  cdc_serial_app_init();
+
+  //------------- start OS scheduler (never return) -------------//
+#if CFG_TUSB_OS == OPT_OS_FREERTOS
+  vTaskStartScheduler();
+#elif CFG_TUSB_OS == OPT_OS_NONE
+  os_none_start_scheduler();
+#else
+  #error need to start RTOS schduler
+#endif
+
+  return 0;
+}
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void tud_mount_cb(void)
+{
+  uint8_t rhport = 0; // TODO remove
+  cdc_serial_app_mount(rhport);
+  keyboard_app_mount(rhport);
+  msc_app_mount(rhport);
+}
+
+void tud_umount_cb(void)
+{
+  uint8_t rhport = 0; // TODO remove
+  cdc_serial_app_umount(rhport);
+  keyboard_app_umount(rhport);
+  msc_app_umount(rhport);
+}
+
+//--------------------------------------------------------------------+
+// BLINKING TASK
+//--------------------------------------------------------------------+
+OSAL_TASK_DEF(blink_task_def, "blinky", led_blinking_task, LED_BLINKING_APP_TASK_PRIO, 128);
+
+static uint32_t led_blink_interval_ms = 1000; // default is 1 second
+
+void led_blinking_init(void)
+{
+  led_blink_interval_ms = 1000;
+  osal_task_create(&blink_task_def);
+}
+
+void led_blinking_set_interval(uint32_t ms)
+{
+  led_blink_interval_ms = ms;
+}
+
+tusb_error_t led_blinking_subtask(void);
+void led_blinking_task(void* param)
+{
+  (void) param;
+
+  OSAL_TASK_BEGIN
+  led_blinking_subtask();
+  OSAL_TASK_END
+}
+
+tusb_error_t led_blinking_subtask(void)
+{
+  OSAL_SUBTASK_BEGIN
+
+  static bool led_state = false;
+
+  osal_task_delay(led_blink_interval_ms);
+
+  board_led_control(led_state);
+  led_state = 1 - led_state; // toggle
+
+//  uint32_t btn_mask;
+//  btn_mask = board_buttons();
+//
+//  for(uint8_t i=0; i<32; i++)
+//  {
+//    if ( BIT_TEST_(btn_mask, i) ) printf("button %d is pressed\n", i);
+//  }
+
+  OSAL_SUBTASK_END
+}
+
+//--------------------------------------------------------------------+
+// HELPER FUNCTION
+//--------------------------------------------------------------------+
+void print_greeting(void)
+{
+  char const * const rtos_name[] =
+  {
+      [OPT_OS_NONE]      = "None",
+      [OPT_OS_FREERTOS]  = "FreeRTOS",
+  };
+
+  printf("\n\
+--------------------------------------------------------------------\n\
+-                     Device Demo (a tinyusb example)\n\
+- if you find any bugs or get any questions, feel free to file an\n\
+- issue at https://github.com/hathach/tinyusb\n\
+--------------------------------------------------------------------\n\n"
+  );
+
+  puts("This DEVICE demo is configured to support:");
+  printf("  - RTOS = %s\n", rtos_name[CFG_TUSB_OS]);
+  if (CFG_TUD_HID_MOUSE    ) puts("  - HID Mouse");
+  if (CFG_TUD_HID_KEYBOARD ) puts("  - HID Keyboard");
+  if (CFG_TUD_MSC          ) puts("  - Mass Storage");
+  if (CFG_TUD_CDC          ) puts("  - Communication Device Class");
+}
diff --git a/examples/obsolete/device/src/mouse_device_app.c b/examples/obsolete/device/src/mouse_device_app.c
new file mode 100644
index 000000000..6869f1a05
--- /dev/null
+++ b/examples/obsolete/device/src/mouse_device_app.c
@@ -0,0 +1,153 @@
+  /**************************************************************************/
+/*!
+    @file     mouse_device_app.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 "mouse_device_app.h"
+
+#if CFG_TUD_HID_MOUSE
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "app_os_prio.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+CFG_TUSB_MEM_SECTION hid_mouse_report_t mouse_report;
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void mouse_app_mount(uint8_t rhport)
+{
+
+}
+
+void mouse_app_umount(uint8_t rhport)
+{
+
+}
+
+void tud_hid_mouse_cb(uint8_t rhport, xfer_result_t event, uint32_t xferred_bytes)
+{
+  switch(event)
+  {
+    case XFER_RESULT_SUCCESS:
+    case XFER_RESULT_FAILED:
+    case XFER_RESULT_STALLED:
+    default: break;
+  }
+}
+
+uint16_t tud_hid_mouse_get_report_cb(hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
+{
+  if ( report_type != HID_REPORT_TYPE_INPUT ) return 0; // not support other report type for this mouse demo
+
+  memcpy(buffer, &mouse_report, reqlen);
+  return reqlen;
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION CODE
+//--------------------------------------------------------------------+
+void mouse_app_init(void)
+{
+  osal_task_create(mouse_app_task, "mouse", 128, NULL, MOUSE_APP_TASK_PRIO);
+}
+
+void mouse_app_subtask(void);
+
+void mouse_app_task(void * param)
+{
+  (void) param;
+  OSAL_TASK_BEGIN
+  mouse_app_subtask();
+  OSAL_TASK_END
+}
+
+void mouse_app_subtask(void)
+{
+  OSAL_SUBTASK_BEGIN
+
+  osal_task_delay(20);
+
+  if ( tud_mounted() &&  !tud_hid_mouse_is_busy(0) )
+  {
+    static uint8_t prev_mouse_buttons = 0;
+
+    enum {
+      BUTTON_UP           = 0, // map to button mask
+      BUTTON_DOWN         = 1,
+      BUTTON_LEFT         = 2,
+      BUTTON_RIGHT        = 3,
+      BUTTON_CLICK_LEFT   = 4,
+      BUTTON_CLICK_RIGHT  = 5,
+      BUTTON_CLICK_MIDDLE = 6
+    };
+
+    enum { MOUSE_RESOLUTION  = 5 };
+
+    uint32_t button_mask = board_buttons();
+    tu_memclr(&mouse_report, sizeof(hid_mouse_report_t));
+
+    if ( BIT_TEST_(button_mask, BUTTON_UP           ) ) mouse_report.y = -MOUSE_RESOLUTION;
+    if ( BIT_TEST_(button_mask, BUTTON_DOWN         ) ) mouse_report.y = MOUSE_RESOLUTION;
+
+    if ( BIT_TEST_(button_mask, BUTTON_LEFT         ) ) mouse_report.x = -MOUSE_RESOLUTION;
+    if ( BIT_TEST_(button_mask, BUTTON_RIGHT        ) ) mouse_report.x = MOUSE_RESOLUTION;
+
+    if ( BIT_TEST_(button_mask, BUTTON_CLICK_LEFT   ) ) mouse_report.buttons |= MOUSE_BUTTON_LEFT;
+    if ( BIT_TEST_(button_mask, BUTTON_CLICK_RIGHT  ) ) mouse_report.buttons |= MOUSE_BUTTON_RIGHT;
+    if ( BIT_TEST_(button_mask, BUTTON_CLICK_MIDDLE ) ) mouse_report.buttons |= MOUSE_BUTTON_MIDDLE;
+
+    if ( ! (prev_mouse_buttons == mouse_report.buttons && mouse_report.y == 0 && mouse_report.x == 0 && mouse_report.wheel == 0) )
+    { // send report if clicked buttons are changed or there is any movement x, y, wheel
+      prev_mouse_buttons = mouse_report.buttons;
+
+      tud_hid_mouse_send(0, &mouse_report);
+    }
+  }
+
+  OSAL_SUBTASK_END
+}
+
+#endif
+
diff --git a/examples/obsolete/device/src/mouse_device_app.h b/examples/obsolete/device/src/mouse_device_app.h
new file mode 100644
index 000000000..2eeb5794a
--- /dev/null
+++ b/examples/obsolete/device/src/mouse_device_app.h
@@ -0,0 +1,78 @@
+/**************************************************************************/
+/*!
+    @file     mouse_device_app.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 TBD
+ *  \defgroup TBD
+ *  \brief TBD
+ *
+ *  @{
+ */
+
+#ifndef _TUSB_MOUSED_DEVICE_APP_H_
+#define _TUSB_MOUSED_DEVICE_APP_H_
+
+#include "bsp/board.h"
+#include "tusb.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#if CFG_TUD_HID_MOUSE
+
+void mouse_app_init(void);
+void mouse_app_task(void * param);
+void mouse_app_mount(uint8_t rhport);
+void mouse_app_umount(uint8_t rhport);
+
+#else
+
+#define mouse_app_init()
+#define mouse_app_task(x)
+#define mouse_app_mount(x)
+#define mouse_app_umount(x)
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_MOUSED_DEVICE_APP_H_ */
+
+/** @} */
diff --git a/examples/obsolete/device/src/msc_device_app.c b/examples/obsolete/device/src/msc_device_app.c
new file mode 100644
index 000000000..5190e6265
--- /dev/null
+++ b/examples/obsolete/device/src/msc_device_app.c
@@ -0,0 +1,129 @@
+/**************************************************************************/
+/*!
+    @file     msc_device_app.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 "msc_device_app.h"
+
+#if CFG_TUD_MSC
+#include "app_os_prio.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void msc_app_mount(uint8_t rhport)
+{
+
+}
+
+void msc_app_umount(uint8_t rhport)
+{
+
+}
+
+int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer, uint16_t bufsize)
+{
+  // read10 & write10 has their own callback and MUST not be handled here
+
+  void const* ptr = NULL;
+  uint16_t len = 0;
+
+  // most scsi handled is input
+  bool in_xfer = true;
+
+  switch (scsi_cmd[0])
+  {
+    case SCSI_CMD_TEST_UNIT_READY:
+      // Command that host uses to check our readiness before sending other commands
+      len = 0;
+    break;
+
+    case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
+      // Host is about to read/write etc ... better not to disconnect disk
+      len = 0;
+    break;
+
+    case SCSI_CMD_START_STOP_UNIT:
+      // Host try to eject/safe remove/powerof us. We could safely disconnect with disk storage, or go into lower power
+      // scsi_start_stop_unit_t const * cmd_start_stop = (scsi_start_stop_unit_t const *) scsi_cmd
+      len = 0;
+    break;
+
+    default:
+      // negative is error -> Data stage is STALL, status = failed
+      return -1;
+  }
+
+  // return len must not larger than bufsize
+  TU_ASSERT( bufsize >= len );
+
+  if ( ptr && len )
+  {
+    if(in_xfer)
+    {
+      memcpy(buffer, ptr, len);
+    }else
+    {
+      // SCSI output
+    }
+  }
+
+  return len;
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION CODE
+//--------------------------------------------------------------------+
+void msc_app_task(void* param)
+{ // no need to implement the task yet
+  (void) param;
+
+  OSAL_TASK_BEGIN
+
+  OSAL_TASK_END
+}
+
+void msc_app_init (void)
+{
+
+}
+
+
+#endif
diff --git a/examples/obsolete/device/src/msc_device_app.h b/examples/obsolete/device/src/msc_device_app.h
new file mode 100644
index 000000000..6f2e95630
--- /dev/null
+++ b/examples/obsolete/device/src/msc_device_app.h
@@ -0,0 +1,93 @@
+/**************************************************************************/
+/*!
+    @file     msc_device_app.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_demo
+ *  \defgroup Mass Storage Device App
+ *  @{ */
+
+#ifndef _TUSB_MSCD_DEVICE_APP_H_
+#define _TUSB_MSCD_DEVICE_APP_H_
+
+#include "bsp/board.h"
+#include "tusb.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#if CFG_TUD_MSC
+
+enum
+{
+  DISK_BLOCK_NUM  = 16, // 8KB is the smallest size that windows allow to mount
+  DISK_BLOCK_SIZE = 512
+};
+
+#define README_CONTENTS \
+"This is tinyusb's MassStorage Class demo.\r\n\r\n\
+If you find any bugs or get any questions, feel free to file an\r\n\
+issue at github.com/hathach/tinyusb"
+
+#if CFG_TUSB_MCU==OPT_MCU_LPC11UXX || CFG_TUSB_MCU==OPT_MCU_LPC13XX
+  #define MSCD_APP_ROMDISK
+#else // defaults is ram disk
+  #define MSCD_APP_RAMDISK
+#endif
+
+void msc_app_init(void);
+void msc_app_task(void* param);
+
+void msc_app_mount(uint8_t rhport);
+void msc_app_umount(uint8_t rhport);
+
+#else
+
+#define msc_app_init()
+#define msc_app_task(x)
+#define msc_app_mount(x)
+#define msc_app_umount(x)
+
+#endif
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_MSCD_DEVICE_APP_H_ */
+
+/** @} */
diff --git a/examples/obsolete/device/src/msc_device_ramdisk.c b/examples/obsolete/device/src/msc_device_ramdisk.c
new file mode 100644
index 000000000..f28690b73
--- /dev/null
+++ b/examples/obsolete/device/src/msc_device_ramdisk.c
@@ -0,0 +1,114 @@
+/**************************************************************************/
+/*!
+    @file     msc_device_ramdisk.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 "msc_device_app.h"
+
+#if CFG_TUD_MSC && defined (MSCD_APP_RAMDISK)
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+CFG_TUSB_MEM_SECTION
+uint8_t msc_device_ramdisk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
+{
+  //------------- Boot Sector -------------//
+  // byte_per_sector    = DISK_BLOCK_SIZE; fat12_sector_num_16  = DISK_BLOCK_NUM;
+  // sector_per_cluster = 1; reserved_sectors = 1;
+  // fat_num            = 1; fat12_root_entry_num = 16;
+  // sector_per_fat     = 1; sector_per_track = 1; head_num = 1; hidden_sectors = 0;
+  // drive_number       = 0x80; media_type = 0xf8; extended_boot_signature = 0x29;
+  // filesystem_type    = "FAT12   "; volume_serial_number = 0x1234; volume_label = "tinyusb msc";
+  [0] =
+  {
+      0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x01, 0x01, 0x00,
+      0x01, 0x10, 0x00, 0x10, 0x00, 0xF8, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0x34, 0x12, 0x00, 0x00, 0x74, 0x69, 0x6E, 0x79, 0x75,
+      0x73, 0x62, 0x20, 0x6D, 0x73, 0x63, 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, 0x00, 0x00,
+      [510] = 0x55, [511] = 0xAA // FAT magic code
+  },
+
+  //------------- FAT12 Table -------------//
+  [1] =
+  {
+      0xF8, 0xFF, 0xFF, 0xFF, 0x0F // // first 2 entries must be F8FF, third entry is cluster end of readme file
+  },
+
+  //------------- Root Directory -------------//
+  [2] =
+  {
+      // first entry is volume label
+      0x54, 0x49, 0x4E, 0x59, 0x55, 0x53, 0x42, 0x20, 0x4D, 0x53, 0x43, 0x08, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0x6D, 0x65, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      // second entry is readme file
+      'R' , 'E' , 'A' , 'D' , 'M' , 'E' , ' ' , ' ' , 'T' , 'X' , 'T' , 0x20, 0x00, 0xC6, 0x52, 0x6D,
+      0x65, 0x43, 0x65, 0x43, 0x00, 0x00, 0x88, 0x6D, 0x65, 0x43, 0x02, 0x00,
+      sizeof(README_CONTENTS)-1, 0x00, 0x00, 0x00 // readme's filesize (4 Bytes)
+  },
+
+  //------------- Readme Content -------------//
+  [3] = README_CONTENTS
+};
+
+//--------------------------------------------------------------------+
+// IMPLEMENTATION
+//--------------------------------------------------------------------+
+int32_t tud_msc_read10_cb (uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
+{
+  (void) rhport; (void) lun;
+
+  uint8_t* addr = msc_device_ramdisk[lba] + offset;
+  memcpy(buffer, (uint8_t*) addr, bufsize);
+
+  return bufsize;
+}
+
+int32_t tud_msc_write10_cb (uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
+{
+  (void) rhport; (void) lun;
+
+  uint8_t* addr = msc_device_ramdisk[lba] + offset;
+  memcpy(addr, buffer, bufsize);
+
+  return bufsize;
+}
+
+#endif
diff --git a/examples/obsolete/device/src/msc_device_romdisk.c b/examples/obsolete/device/src/msc_device_romdisk.c
new file mode 100644
index 000000000..1e6ca1bc3
--- /dev/null
+++ b/examples/obsolete/device/src/msc_device_romdisk.c
@@ -0,0 +1,119 @@
+/**************************************************************************/
+/*!
+    @file     msc_device_romdisk.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 "msc_device_app.h"
+
+#if CFG_TUD_MSC && defined (MSCD_APP_ROMDISK)
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+const uint8_t msc_device_app_rommdisk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
+{
+  //------------- Boot Sector -------------//
+  // byte_per_sector    = DISK_BLOCK_SIZE; fat12_sector_num_16  = DISK_BLOCK_NUM;
+  // sector_per_cluster = 1; reserved_sectors = 1;
+  // fat_num            = 1; fat12_root_entry_num = 16;
+  // sector_per_fat     = 1; sector_per_track = 1; head_num = 1; hidden_sectors = 0;
+  // drive_number       = 0x80; media_type = 0xf8; extended_boot_signature = 0x29;
+  // filesystem_type    = "FAT12   "; volume_serial_number = 0x1234; volume_label = "tinyusb msc";
+  [0] =
+  {
+      0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x01, 0x01, 0x00,
+      0x01, 0x10, 0x00, 0x10, 0x00, 0xF8, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0x34, 0x12, 0x00, 0x00, 0x74, 0x69, 0x6E, 0x79, 0x75,
+      0x73, 0x62, 0x20, 0x6D, 0x73, 0x63, 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, 0x00, 0x00,
+      [510] = 0x55, [511] = 0xAA // FAT magic code
+  },
+
+  //------------- FAT12 Table -------------//
+  [1] =
+  {
+      0xF8, 0xFF, 0xFF, 0xFF, 0x0F // first 2 entries must be F8FF, third entry is cluster end of readme file
+  },
+
+  //------------- Root Directory -------------//
+  [2] =
+  {
+      // first entry is volume label
+      0x54, 0x49, 0x4E, 0x59, 0x55, 0x53, 0x42, 0x20, 0x4D, 0x53, 0x43, 0x08, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0x6D, 0x65, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      // second entry is readme file
+      0x52, 0x45, 0x41, 0x44, 0x4D, 0x45, 0x20, 0x20, 0x54, 0x58, 0x54, 0x20, 0x00, 0xC6, 0x52, 0x6D,
+      0x65, 0x43, 0x65, 0x43, 0x00, 0x00, 0x88, 0x6D, 0x65, 0x43, 0x02, 0x00,
+      sizeof(README_CONTENTS)-1, 0x00, 0x00, 0x00 // readme's filesize
+  },
+
+  //------------- Readme Content -------------//
+  [3] = README_CONTENTS
+};
+
+//--------------------------------------------------------------------+
+// IMPLEMENTATION
+//--------------------------------------------------------------------+
+int32_t tud_msc_read10_cb (uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
+{
+  (void) rhport; (void) lun;
+
+  uint8_t* addr = msc_device_ramdisk[lba] + offset;
+  memcpy(buffer, (uint8_t*) addr, bufsize);
+
+  return bufsize;
+}
+
+
+// Stall write10 by return 0, as this is readonly disk
+int32_t tud_msc_write10_cb (uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
+{
+  (void) rhport; (void) lun;
+
+  // let host know that this is read-only disk
+  mscd_sense_data.sense_key = SCSI_SENSEKEY_DATA_PROTECT;
+  return 0;
+}
+
+#endif
+
diff --git a/examples/obsolete/device/src/tusb_config.h b/examples/obsolete/device/src/tusb_config.h
new file mode 100644
index 000000000..bc9ff27fe
--- /dev/null
+++ b/examples/obsolete/device/src/tusb_config.h
@@ -0,0 +1,147 @@
+/**************************************************************************/
+/*!
+    @file     tusb_config.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_CONFIG_H_
+#define _TUSB_CONFIG_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// CONTROLLER CONFIGURATION
+//--------------------------------------------------------------------+
+//#define CFG_TUSB_MCU will be passed from IDE/command line for easy board/mcu switching
+
+#define CFG_TUSB_RHPORT0_MODE  (OPT_MODE_DEVICE)
+//#define CFG_TUSB_RHPORT1_MODE  (OPT_MODE_DEVICE)
+
+#define CFG_TUSB_DEBUG            2
+
+/*------------- RTOS -------------*/
+//#define CFG_TUSB_OS               OPT_OS_NONE // be passed from IDE/command line for easy project switching
+//#define CFG_TUD_TASK_PRIO         0
+//#define CFG_TUD_TASK_QUEUE_SZ     16
+//#define CFG_TUD_TASK_STACK_SZ     150
+
+//--------------------------------------------------------------------+
+// DEVICE CONFIGURATION
+//--------------------------------------------------------------------+
+
+/*------------- Core -------------*/
+#define CFG_TUD_DESC_AUTO         1
+
+// #define CFG_TUD_DESC_VID          0xCAFE
+// #define CFG_TUD_DESC_PID          0x0001
+
+#define CFG_TUD_ENDOINT0_SIZE     64
+
+//------------- CLASS -------------//
+#define CFG_TUD_MSC               1
+#define CFG_TUD_CDC               1
+#define CFG_TUD_HID_KEYBOARD      0
+#define CFG_TUD_HID_MOUSE         0
+
+/*------------------------------------------------------------------*/
+/* CLASS DRIVER
+ *------------------------------------------------------------------*/
+
+// FIFO size of CDC TX and RX
+#define CFG_TUD_CDC_RX_BUFSIZE    128
+#define CFG_TUD_CDC_TX_BUFSIZE    128
+
+// Number of supported Logical Unit Number (At least 1)
+#define CFG_TUD_MSC_MAXLUN        1
+
+// Buffer size of Device Mass storage
+#define CFG_TUD_MSC_BUFSIZE       512
+
+//--------------------------------------------------------------------+
+// USB RAM PLACEMENT
+//--------------------------------------------------------------------+
+#ifdef __CODE_RED // compiled with lpcxpresso
+
+  #if (CFG_TUSB_MCU == OPT_MCU_LPC11UXX) || (CFG_TUSB_MCU == OPT_MCU_LPC13XX)
+    #define CFG_TUSB_MEM_SECTION  ATTR_SECTION(.data.$RAM2) ATTR_ALIGNED(64) // lp11u & lp13u requires data to be 64 byte aligned
+  #elif CFG_TUSB_MCU == OPT_MCU_LPC175X_6X
+    #define CFG_TUSB_MEM_SECTION // LPC17xx USB DMA can access all
+  #elif  (CFG_TUSB_MCU == OPT_MCU_LPC43XX)
+    #define CFG_TUSB_MEM_SECTION  ATTR_SECTION(.data.$RAM3)
+  #endif
+
+#elif defined  __CC_ARM // Compiled with Keil armcc, USBRAM_SECTION is defined in scatter files
+
+  #if (CFG_TUSB_MCU == OPT_MCU_LPC11UXX) || (CFG_TUSB_MCU == OPT_MCU_LPC13XX)
+    #define CFG_TUSB_MEM_SECTION  ATTR_SECTION(USBRAM_SECTION) ATTR_ALIGNED(64) // lp11u & lp13u requires data to be 64 byte aligned
+  #elif (CFG_TUSB_MCU == OPT_MCU_LPC175X_6X)
+    #define CFG_TUSB_MEM_SECTION  // LPC17xx USB DMA can access all address
+  #elif  (CFG_TUSB_MCU == OPT_MCU_LPC43XX)
+    #define CFG_TUSB_MEM_SECTION // Use keil tool configure to have AHB SRAM as default memory
+  #endif
+
+#elif defined __ICCARM__ // compiled with IAR
+
+  #if (CFG_TUSB_MCU == OPT_MCU_LPC11UXX) || (CFG_TUSB_MCU == OPT_MCU_LPC13XX)
+    #define CFG_TUSB_MEM_SECTION _Pragma("location=\"USB_PACKET_MEMORY\"") ATTR_ALIGNED(64)
+  #elif (CFG_TUSB_MCU == OPT_MCU_LPC175X_6X)
+    #define CFG_TUSB_MEM_SECTION
+  #elif  (CFG_TUSB_MCU == OPT_MCU_LPC43XX)
+    #define CFG_TUSB_MEM_SECTION _Pragma("location=\".ahb_sram1\"")
+  #endif
+
+#else
+
+  #error compiler not specified
+
+#endif
+
+// LPC11uxx and LPC13uxx requires each buffer has to be 64-byte alignment
+#if CFG_TUSB_MCU == OPT_MCU_LPC11UXX || CFG_TUSB_MCU == OPT_MCU_LPC13XX
+ #define CFG_TUSB_MEM_ALIGN   ATTR_ALIGNED(64)
+#elif CFG_TUSB_MCU == OPT_MCU_NRF5X
+ #define CFG_TUSB_MEM_ALIGN   ATTR_ALIGNED(4)
+#else
+ #define CFG_TUSB_MEM_ALIGN
+#endif
+
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CONFIG_H_ */
diff --git a/examples/obsolete/device/src/tusb_descriptors.c b/examples/obsolete/device/src/tusb_descriptors.c
new file mode 100644
index 000000000..2ba5434cc
--- /dev/null
+++ b/examples/obsolete/device/src/tusb_descriptors.c
@@ -0,0 +1,100 @@
+/**************************************************************************/
+/*!
+    @file     tusb_descriptors.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.h"
+
+//--------------------------------------------------------------------+
+// STRING DESCRIPTORS
+//--------------------------------------------------------------------+
+#define STRING_LEN_UNICODE(n) (2 + (2*(n))) // also includes 2 byte header
+#define ENDIAN_BE16_FROM( high, low) ENDIAN_BE16(high << 8 | low)
+
+// array of pointer to string descriptors
+uint16_t const * const string_desc_arr [] =
+{
+    [0] = (uint16_t []) { // supported language
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(1), TUSB_DESC_STRING ),
+        0x0409 // English
+    },
+
+    [1] = (uint16_t []) { // manufacturer
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(11), TUSB_DESC_STRING),
+        't', 'i', 'n', 'y', 'u', 's', 'b', '.', 'o', 'r', 'g' // len = 11
+    },
+
+    [2] = (uint16_t []) { // product
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(14), TUSB_DESC_STRING),
+        't', 'i', 'n', 'y', 'u', 's', 'b', ' ', 'd', 'e', 'v', 'i', 'c', 'e' // len = 14
+    },
+
+    [3] = (uint16_t []) { // serials
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(4), TUSB_DESC_STRING),
+        '1', '2', '3', '4' // len = 4
+    },
+
+    [4] = (uint16_t []) { // CDC Interface
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(3), TUSB_DESC_STRING),
+        'c', 'd', 'c' // len = 3
+    },
+
+    [5] = (uint16_t []) { // Keyboard Interface
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(5), TUSB_DESC_STRING),
+        'm', 'o', 'u', 's', 'e' // len = 5
+    },
+
+    [6] = (uint16_t []) { // Keyboard Interface
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(8), TUSB_DESC_STRING),
+        'k', 'e', 'y', 'b', 'o', 'a', 'r', 'd' // len = 8
+    },
+
+    [7] = (uint16_t []) { // MSC Interface
+        ENDIAN_BE16_FROM( STRING_LEN_UNICODE(3), TUSB_DESC_STRING),
+        'm', 's', 'c' // len = 3
+    }
+};
+
+
+// tud_desc_set is required by tinyusb stack
+// since CFG_TUD_DESC_AUTO is enabled, we only need to set string_arr
+tud_desc_set_t tud_desc_set =
+{
+    .device     = NULL,
+    .config     = NULL,
+    .string_arr = (uint8_t const **) string_desc_arr,
+    .hid_report = NULL
+};