Merge branch 'hathach:master' into master

31 files changed, 1320 insertions, 940 deletions

diff --git a/examples/host/CMakeLists.txt b/examples/host/CMakeLists.txt
index 5c63ec0c0..758973ab2 100644
--- a/examples/host/CMakeLists.txt
+++ b/examples/host/CMakeLists.txt
@@ -6,5 +6,7 @@ project(tinyusb_host_examples)
 family_initialize_project(tinyusb_host_examples ${CMAKE_CURRENT_LIST_DIR})
 
 # family_add_subdirectory will filter what to actually add based on selected FAMILY
+family_add_subdirectory(bare_api)
 family_add_subdirectory(cdc_msc_hid)
 family_add_subdirectory(hid_controller)
+family_add_subdirectory(msc_file_explorer)
diff --git a/examples/host/bare_api/CMakeLists.txt b/examples/host/bare_api/CMakeLists.txt
index bff281a8c..616edd4ac 100644
--- a/examples/host/bare_api/CMakeLists.txt
+++ b/examples/host/bare_api/CMakeLists.txt
@@ -24,4 +24,9 @@ target_include_directories(${PROJECT} PUBLIC
 
 # Configure compilation flags and libraries for the example... see the corresponding function
 # in hw/bsp/FAMILY/family.cmake for details.
-family_configure_host_example(${PROJECT})
\ No newline at end of file
+family_configure_host_example(${PROJECT})
+
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/bare_api/Makefile b/examples/host/bare_api/Makefile
index 13e14df53..058307c40 100644
--- a/examples/host/bare_api/Makefile
+++ b/examples/host/bare_api/Makefile
@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \
@@ -11,9 +10,6 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-# TODO: suppress warning caused by host stack
-CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference
-
 # TinyUSB Host Stack source
 SRC_C += \
 	src/class/cdc/cdc_host.c \
diff --git a/examples/host/bare_api/only.txt b/examples/host/bare_api/only.txt
index 7fe4e3f5c..fa9c14857 100644
--- a/examples/host/bare_api/only.txt
+++ b/examples/host/bare_api/only.txt
@@ -3,7 +3,9 @@ mcu:LPC177X_8X
 mcu:LPC18XX
 mcu:LPC40XX
 mcu:LPC43XX
+mcu:MIMXRT
 mcu:MIMXRT10XX
+mcu:MIMXRT11XX
 mcu:RP2040
 mcu:MSP432E4
 mcu:RX65X
diff --git a/examples/host/bare_api/src/main.c b/examples/host/bare_api/src/main.c
index eb3f7d8d7..bb7fa850e 100644
--- a/examples/host/bare_api/src/main.c
+++ b/examples/host/bare_api/src/main.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -62,8 +62,10 @@ int main(void)
 {
   board_init();
 
-  printf("TinyUSB Host HID Controller Example\r\n");
-  tusb_init();
+  printf("TinyUSB Bare API Example\r\n");
+
+  // init host stack on configured roothub port
+  tuh_init(BOARD_TUH_RHPORT);
 
   while (1)
   {
@@ -82,8 +84,8 @@ void tuh_mount_cb (uint8_t daddr)
 {
   printf("Device attached, address = %d\r\n", daddr);
 
-  // Get Device Descriptor sync API
-  // TODO: invoking control trannsfer now has issue with mounting hub with multiple devices attached, fix later
+  // Get Device Descriptor
+  // TODO: invoking control transfer now has issue with mounting hub with multiple devices attached, fix later
   tuh_descriptor_get_device(daddr, &desc_device, 18, print_device_descriptor, 0);
 }
 
@@ -187,7 +189,7 @@ void parse_config_descriptor(uint8_t dev_addr, tusb_desc_configuration_t const*
     if( TUSB_DESC_INTERFACE != tu_desc_type(p_desc) ) return;
     tusb_desc_interface_t const* desc_itf = (tusb_desc_interface_t const*) p_desc;
 
-    uint16_t const drv_len = count_interface_total_len(desc_itf, assoc_itf_count, desc_end-p_desc);
+    uint16_t const drv_len = count_interface_total_len(desc_itf, assoc_itf_count, (uint16_t) (desc_end-p_desc));
 
     // probably corrupted descriptor
     if(drv_len < sizeof(tusb_desc_interface_t)) return;
@@ -242,7 +244,8 @@ void hid_report_received(tuh_xfer_t* xfer);
 void open_hid_interface(uint8_t daddr, tusb_desc_interface_t const *desc_itf, uint16_t max_len)
 {
   // len = interface + hid + n*endpoints
-  uint16_t const drv_len = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
+  uint16_t const drv_len = (uint16_t) (sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) +
+                                       desc_itf->bNumEndpoints * sizeof(tusb_desc_endpoint_t));
 
   // corrupted descriptor
   if (max_len < drv_len) return;
@@ -375,7 +378,7 @@ static void _convert_utf16le_to_utf8(const uint16_t *utf16, size_t utf16_len, ui
     for (size_t i = 0; i < utf16_len; i++) {
         uint16_t chr = utf16[i];
         if (chr < 0x80) {
-            *utf8++ = chr & 0xff;
+            *utf8++ = chr & 0xffu;
         } else if (chr < 0x800) {
             *utf8++ = (uint8_t)(0xC0 | (chr >> 6 & 0x1F));
             *utf8++ = (uint8_t)(0x80 | (chr >> 0 & 0x3F));
@@ -403,12 +406,12 @@ static int _count_utf8_bytes(const uint16_t *buf, size_t len) {
         }
         // TODO: Handle UTF-16 code points that take two entries.
     }
-    return total_bytes;
+    return (int) total_bytes;
 }
 
 static void print_utf16(uint16_t *temp_buf, size_t buf_len) {
     size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t);
-    size_t utf8_len = _count_utf8_bytes(temp_buf + 1, utf16_len);
+    size_t utf8_len = (size_t) _count_utf8_bytes(temp_buf + 1, utf16_len);
     _convert_utf16le_to_utf8(temp_buf + 1, utf16_len, (uint8_t *) temp_buf, sizeof(uint16_t) * buf_len);
     ((uint8_t*) temp_buf)[utf8_len] = '\0';
 
diff --git a/examples/host/bare_api/src/tusb_config.h b/examples/host/bare_api/src/tusb_config.h
index 9b789290d..ede9618d3 100644
--- a/examples/host/bare_api/src/tusb_config.h
+++ b/examples/host/bare_api/src/tusb_config.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -30,27 +30,48 @@
  extern "C" {
 #endif
 
+//--------------------------------------------------------------------+
+// Board Specific Configuration
+//--------------------------------------------------------------------+
+
+#if CFG_TUSB_MCU == OPT_MCU_RP2040
+// change to 1 if using pico-pio-usb as host controller for raspberry rp2040
+#define CFG_TUH_RPI_PIO_USB   0
+#define BOARD_TUH_RHPORT      CFG_TUH_RPI_PIO_USB
+#endif
+
+// RHPort number used for host can be defined by board.mk, default to port 0
+#ifndef BOARD_TUH_RHPORT
+#define BOARD_TUH_RHPORT      0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUH_MAX_SPEED
+#define BOARD_TUH_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
+#endif
+
 //--------------------------------------------------------------------
 // COMMON CONFIGURATION
 //--------------------------------------------------------------------
 
 // defined by compiler flags for flexibility
 #ifndef CFG_TUSB_MCU
-  #error CFG_TUSB_MCU must be defined
+#error CFG_TUSB_MCU must be defined
 #endif
 
-#if CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX
-  #define CFG_TUSB_RHPORT0_MODE       (OPT_MODE_HOST | OPT_MODE_HIGH_SPEED)
-#else
-  #define CFG_TUSB_RHPORT0_MODE       OPT_MODE_HOST
+#ifndef CFG_TUSB_OS
+#define CFG_TUSB_OS           OPT_OS_NONE
 #endif
 
-#ifndef CFG_TUSB_OS
-#define CFG_TUSB_OS                 OPT_OS_NONE
+#ifndef CFG_TUSB_DEBUG
+#define CFG_TUSB_DEBUG        0
 #endif
 
-// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
-// #define CFG_TUSB_DEBUG           0
+// Enable Host stack
+#define CFG_TUH_ENABLED       1
+
+// Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
 
 /* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
  * Tinyusb use follows macros to declare transferring memory so that they can be put
@@ -59,12 +80,12 @@
  * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
  * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
  */
-#ifndef CFG_TUSB_MEM_SECTION
-#define CFG_TUSB_MEM_SECTION
+#ifndef CFG_TUH_MEM_SECTION
+#define CFG_TUH_MEM_SECTION
 #endif
 
-#ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
+#ifndef CFG_TUH_MEM_ALIGN
+#define CFG_TUH_MEM_ALIGN        __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
@@ -79,7 +100,7 @@
 
 // max device support (excluding hub device)
 // 1 hub typically has 4 ports
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1)
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
 
 // Max endpoint per device
 #define CFG_TUH_ENDPOINT_MAX        8
diff --git a/examples/host/cdc_msc_hid/CMakeLists.txt b/examples/host/cdc_msc_hid/CMakeLists.txt
index 0a99bc3a9..d7d1a54d7 100644
--- a/examples/host/cdc_msc_hid/CMakeLists.txt
+++ b/examples/host/cdc_msc_hid/CMakeLists.txt
@@ -14,6 +14,7 @@ add_executable(${PROJECT})
 
 # Example source
 target_sources(${PROJECT} PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}/src/cdc_app.c
         ${CMAKE_CURRENT_SOURCE_DIR}/src/hid_app.c
         ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
         ${CMAKE_CURRENT_SOURCE_DIR}/src/msc_app.c
@@ -26,4 +27,9 @@ target_include_directories(${PROJECT} PUBLIC
 
 # Configure compilation flags and libraries for the example... see the corresponding function
 # in hw/bsp/FAMILY/family.cmake for details.
-family_configure_host_example(${PROJECT})
\ No newline at end of file
+family_configure_host_example(${PROJECT})
+
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/cdc_msc_hid/Makefile b/examples/host/cdc_msc_hid/Makefile
index 272acbac8..7c16b39d3 100644
--- a/examples/host/cdc_msc_hid/Makefile
+++ b/examples/host/cdc_msc_hid/Makefile
@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \
@@ -6,11 +5,13 @@ INC += \
 	$(TOP)/hw \
 
 # Example source
-EXAMPLE_SOURCE += $(wildcard src/*.c)
-SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+EXAMPLE_SOURCE = \
+  src/cdc_app.c \
+  src/hid_app.c \
+  src/main.c \
+  src/msc_app.c \
 
-# TODO: suppress warning caused by host stack
-CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
 # TinyUSB Host Stack source
 SRC_C += \
diff --git a/examples/host/cdc_msc_hid/only.txt b/examples/host/cdc_msc_hid/only.txt
index 7fe4e3f5c..fa9c14857 100644
--- a/examples/host/cdc_msc_hid/only.txt
+++ b/examples/host/cdc_msc_hid/only.txt
@@ -3,7 +3,9 @@ mcu:LPC177X_8X
 mcu:LPC18XX
 mcu:LPC40XX
 mcu:LPC43XX
+mcu:MIMXRT
 mcu:MIMXRT10XX
+mcu:MIMXRT11XX
 mcu:RP2040
 mcu:MSP432E4
 mcu:RX65X
diff --git a/examples/host/cdc_msc_hid/src/cdc_app.c b/examples/host/cdc_msc_hid/src/cdc_app.c
new file mode 100644
index 000000000..7769d109e
--- /dev/null
+++ b/examples/host/cdc_msc_hid/src/cdc_app.c
@@ -0,0 +1,113 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2022, Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "tusb.h"
+#include "bsp/board.h"
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
+//--------------------------------------------------------------------+
+
+
+//------------- IMPLEMENTATION -------------//
+
+size_t get_console_inputs(uint8_t* buf, size_t bufsize)
+{
+  size_t count = 0;
+  while (count < bufsize)
+  {
+    int ch = board_getchar();
+    if ( ch <= 0 ) break;
+
+    buf[count] = (uint8_t) ch;
+    count++;
+  }
+
+  return count;
+}
+
+void cdc_app_task(void)
+{
+  uint8_t buf[64+1]; // +1 for extra null character
+  uint32_t const bufsize = sizeof(buf)-1;
+
+  uint32_t count = get_console_inputs(buf, bufsize);
+  buf[count] = 0;
+
+  // loop over all mounted interfaces
+  for(uint8_t idx=0; idx<CFG_TUH_CDC; idx++)
+  {
+    if ( tuh_cdc_mounted(idx) )
+    {
+      // console --> cdc interfaces
+      if (count)
+      {
+        tuh_cdc_write(idx, buf, count);
+        tuh_cdc_write_flush(idx);
+      }
+    }
+  }
+}
+
+// Invoked when received new data
+void tuh_cdc_rx_cb(uint8_t idx)
+{
+  uint8_t buf[64+1]; // +1 for extra null character
+  uint32_t const bufsize = sizeof(buf)-1;
+
+  // forward cdc interfaces -> console
+  uint32_t count = tuh_cdc_read(idx, buf, bufsize);
+  buf[count] = 0;
+
+  printf((char*) buf);
+}
+
+void tuh_cdc_mount_cb(uint8_t idx)
+{
+  tuh_itf_info_t itf_info = { 0 };
+  tuh_cdc_itf_get_info(idx, &itf_info);
+
+  printf("CDC Interface is mounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.desc.bInterfaceNumber);
+
+#ifdef CFG_TUH_CDC_LINE_CODING_ON_ENUM
+  // CFG_TUH_CDC_LINE_CODING_ON_ENUM must be defined for line coding is set by tinyusb in enumeration
+  // otherwise you need to call tuh_cdc_set_line_coding() first
+  cdc_line_coding_t line_coding = { 0 };
+  if ( tuh_cdc_get_local_line_coding(idx, &line_coding) )
+  {
+    printf("  Baudrate: %lu, Stop Bits : %u\r\n", line_coding.bit_rate, line_coding.stop_bits);
+    printf("  Parity  : %u, Data Width: %u\r\n", line_coding.parity  , line_coding.data_bits);
+  }
+#endif
+}
+
+void tuh_cdc_umount_cb(uint8_t idx)
+{
+  tuh_itf_info_t itf_info = { 0 };
+  tuh_cdc_itf_get_info(idx, &itf_info);
+
+  printf("CDC Interface is unmounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.desc.bInterfaceNumber);
+}
diff --git a/examples/host/cdc_msc_hid/src/hid_app.c b/examples/host/cdc_msc_hid/src/hid_app.c
index 11437c2b4..ed53c502d 100644
--- a/examples/host/cdc_msc_hid/src/hid_app.c
+++ b/examples/host/cdc_msc_hid/src/hid_app.c
@@ -247,7 +247,7 @@ static void process_generic_report(uint8_t dev_addr, uint8_t instance, uint8_t c
     // Composite report, 1st byte is report ID, data starts from 2nd byte
     uint8_t const rpt_id = report[0];
 
-    // Find report id in the arrray
+    // Find report id in the array
     for(uint8_t i=0; i<rpt_count; i++)
     {
       if (rpt_id == rpt_info_arr[i].report_id )
diff --git a/examples/host/cdc_msc_hid/src/main.c b/examples/host/cdc_msc_hid/src/main.c
index 0fc7ef146..1f4acb822 100644
--- a/examples/host/cdc_msc_hid/src/main.c
+++ b/examples/host/cdc_msc_hid/src/main.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -35,7 +35,7 @@
 //--------------------------------------------------------------------+
 void led_blinking_task(void);
 
-extern void cdc_task(void);
+extern void cdc_app_task(void);
 extern void hid_app_task(void);
 
 /*------------- MAIN -------------*/
@@ -45,53 +45,21 @@ int main(void)
 
   printf("TinyUSB Host CDC MSC HID Example\r\n");
 
-  tusb_init();
+  // init host stack on configured roothub port
+  tuh_init(BOARD_TUH_RHPORT);
 
   while (1)
   {
     // tinyusb host task
     tuh_task();
-    led_blinking_task();
-
-#if CFG_TUH_CDC
-    cdc_task();
-#endif
 
-#if CFG_TUH_HID
+    led_blinking_task();
+    cdc_app_task();
     hid_app_task();
-#endif
   }
-
-  return 0;
 }
 
 //--------------------------------------------------------------------+
-// USB CDC
-//--------------------------------------------------------------------+
-#if CFG_TUH_CDC
-CFG_TUSB_MEM_SECTION static char serial_in_buffer[64] = { 0 };
-
-// invoked ISR context
-void tuh_cdc_xfer_isr(uint8_t dev_addr, xfer_result_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes)
-{
-  (void) event;
-  (void) pipe_id;
-  (void) xferred_bytes;
-
-  printf(serial_in_buffer);
-  tu_memclr(serial_in_buffer, sizeof(serial_in_buffer));
-
-  tuh_cdc_receive(dev_addr, serial_in_buffer, sizeof(serial_in_buffer), true); // waiting for next data
-}
-
-void cdc_task(void)
-{
-
-}
-
-#endif
-
-//--------------------------------------------------------------------+
 // TinyUSB Callbacks
 //--------------------------------------------------------------------+
 
diff --git a/examples/host/cdc_msc_hid/src/msc_app.c b/examples/host/cdc_msc_hid/src/msc_app.c
index 77a72052d..e9c9676b8 100644
--- a/examples/host/cdc_msc_hid/src/msc_app.c
+++ b/examples/host/cdc_msc_hid/src/msc_app.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -25,15 +25,16 @@
 
 #include "tusb.h"
 
-#if CFG_TUH_MSC
-
 //--------------------------------------------------------------------+
 // MACRO TYPEDEF CONSTANT ENUM DECLARATION
 //--------------------------------------------------------------------+
 static scsi_inquiry_resp_t inquiry_resp;
 
-bool inquiry_complete_cb(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
+bool inquiry_complete_cb(uint8_t dev_addr, tuh_msc_complete_data_t const * cb_data)
 {
+  msc_cbw_t const* cbw = cb_data->cbw;
+  msc_csw_t const* csw = cb_data->csw;
+
   if (csw->status != 0)
   {
     printf("Inquiry failed\r\n");
@@ -59,48 +60,11 @@ void tuh_msc_mount_cb(uint8_t dev_addr)
   printf("A MassStorage device is mounted\r\n");
 
   uint8_t const lun = 0;
-  tuh_msc_inquiry(dev_addr, lun, &inquiry_resp, inquiry_complete_cb);
-//
-//  //------------- file system (only 1 LUN support) -------------//
-//  uint8_t phy_disk = dev_addr-1;
-//  disk_initialize(phy_disk);
-//
-//  if ( disk_is_ready(phy_disk) )
-//  {
-//    if ( f_mount(phy_disk, &fatfs[phy_disk]) != FR_OK )
-//    {
-//      puts("mount failed");
-//      return;
-//    }
-//
-//    f_chdrive(phy_disk); // change to newly mounted drive
-//    f_chdir("/"); // root as current dir
-//
-//    cli_init();
-//  }
+  tuh_msc_inquiry(dev_addr, lun, &inquiry_resp, inquiry_complete_cb, 0);
 }
 
 void tuh_msc_umount_cb(uint8_t dev_addr)
 {
   (void) dev_addr;
   printf("A MassStorage device is unmounted\r\n");
-
-//  uint8_t phy_disk = dev_addr-1;
-//
-//  f_mount(phy_disk, NULL); // unmount disk
-//  disk_deinitialize(phy_disk);
-//
-//  if ( phy_disk == f_get_current_drive() )
-//  { // active drive is unplugged --> change to other drive
-//    for(uint8_t i=0; i<CFG_TUH_DEVICE_MAX; i++)
-//    {
-//      if ( disk_is_ready(i) )
-//      {
-//        f_chdrive(i);
-//        cli_init(); // refractor, rename
-//      }
-//    }
-//  }
 }
-
-#endif
diff --git a/examples/host/cdc_msc_hid/src/tusb_config.h b/examples/host/cdc_msc_hid/src/tusb_config.h
index bc6c68e5b..1152e4910 100644
--- a/examples/host/cdc_msc_hid/src/tusb_config.h
+++ b/examples/host/cdc_msc_hid/src/tusb_config.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -30,27 +30,48 @@
  extern "C" {
 #endif
 
+//--------------------------------------------------------------------+
+// Board Specific Configuration
+//--------------------------------------------------------------------+
+
+#if CFG_TUSB_MCU == OPT_MCU_RP2040
+// change to 1 if using pico-pio-usb as host controller for raspberry rp2040
+#define CFG_TUH_RPI_PIO_USB   0
+#define BOARD_TUH_RHPORT      CFG_TUH_RPI_PIO_USB
+#endif
+
+// RHPort number used for host can be defined by board.mk, default to port 0
+#ifndef BOARD_TUH_RHPORT
+#define BOARD_TUH_RHPORT      0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUH_MAX_SPEED
+#define BOARD_TUH_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
+#endif
+
 //--------------------------------------------------------------------
 // COMMON CONFIGURATION
 //--------------------------------------------------------------------
 
 // defined by compiler flags for flexibility
 #ifndef CFG_TUSB_MCU
-  #error CFG_TUSB_MCU must be defined
+#error CFG_TUSB_MCU must be defined
 #endif
 
-#if CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX
-  #define CFG_TUSB_RHPORT0_MODE       (OPT_MODE_HOST | OPT_MODE_HIGH_SPEED)
-#else
-  #define CFG_TUSB_RHPORT0_MODE       OPT_MODE_HOST
+#ifndef CFG_TUSB_OS
+#define CFG_TUSB_OS           OPT_OS_NONE
 #endif
 
-#ifndef CFG_TUSB_OS
-#define CFG_TUSB_OS                 OPT_OS_NONE
+#ifndef CFG_TUSB_DEBUG
+#define CFG_TUSB_DEBUG        0
 #endif
 
-// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
-// #define CFG_TUSB_DEBUG           0
+// Enable Host stack
+#define CFG_TUH_ENABLED       1
+
+// Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
 
 /* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
  * Tinyusb use follows macros to declare transferring memory so that they can be put
@@ -59,12 +80,12 @@
  * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
  * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
  */
-#ifndef CFG_TUSB_MEM_SECTION
-#define CFG_TUSB_MEM_SECTION
+#ifndef CFG_TUH_MEM_SECTION
+#define CFG_TUH_MEM_SECTION
 #endif
 
-#ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
+#ifndef CFG_TUH_MEM_ALIGN
+#define CFG_TUH_MEM_ALIGN        __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
@@ -74,19 +95,30 @@
 // Size of buffer to hold descriptors and other data used for enumeration
 #define CFG_TUH_ENUMERATION_BUFSIZE 256
 
-#define CFG_TUH_HUB                 1
+#define CFG_TUH_HUB                 1 // number of supported hubs
 #define CFG_TUH_CDC                 1
-#define CFG_TUH_HID                 4 // typical keyboard + mouse device can have 3-4 HID interfaces
+#define CFG_TUH_HID                 (3*CFG_TUH_DEVICE_MAX) // typical keyboard + mouse device can have 3-4 HID interfaces
 #define CFG_TUH_MSC                 1
 #define CFG_TUH_VENDOR              0
 
-// max device support (excluding hub device)
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
+// max device support (excluding hub device): 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
 
 //------------- HID -------------//
 #define CFG_TUH_HID_EPIN_BUFSIZE    64
 #define CFG_TUH_HID_EPOUT_BUFSIZE   64
 
+//------------- CDC -------------//
+
+// Set Line Control state on enumeration/mounted:
+// DTR ( bit 0), RTS (bit 1)
+#define CFG_TUH_CDC_LINE_CONTROL_ON_ENUM    0x03
+
+// Set Line Coding on enumeration/mounted, value for cdc_line_coding_t
+// bit rate = 115200, 1 stop bit, no parity, 8 bit data width
+#define CFG_TUH_CDC_LINE_CODING_ON_ENUM   { 115200, CDC_LINE_CONDING_STOP_BITS_1, CDC_LINE_CODING_PARITY_NONE, 8 }
+
+
 #ifdef __cplusplus
  }
 #endif
diff --git a/examples/host/hid_controller/CMakeLists.txt b/examples/host/hid_controller/CMakeLists.txt
index aaf8bc34f..ac3070b82 100644
--- a/examples/host/hid_controller/CMakeLists.txt
+++ b/examples/host/hid_controller/CMakeLists.txt
@@ -25,4 +25,9 @@ target_include_directories(${PROJECT} PUBLIC
 
 # Configure compilation flags and libraries for the example... see the corresponding function
 # in hw/bsp/FAMILY/family.cmake for details.
-family_configure_host_example(${PROJECT})
\ No newline at end of file
+family_configure_host_example(${PROJECT})
+
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/hid_controller/Makefile b/examples/host/hid_controller/Makefile
index 06dc56914..cda2977bc 100644
--- a/examples/host/hid_controller/Makefile
+++ b/examples/host/hid_controller/Makefile
@@ -1,4 +1,3 @@
-include ../../../tools/top.mk
 include ../../make.mk
 
 INC += \
@@ -12,9 +11,6 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-# TODO: suppress warning caused by host stack
-CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference
-
 # TinyUSB Host Stack source
 SRC_C += \
 	src/class/cdc/cdc_host.c \
diff --git a/examples/host/hid_controller/only.txt b/examples/host/hid_controller/only.txt
index 7fe4e3f5c..fa9c14857 100644
--- a/examples/host/hid_controller/only.txt
+++ b/examples/host/hid_controller/only.txt
@@ -3,7 +3,9 @@ mcu:LPC177X_8X
 mcu:LPC18XX
 mcu:LPC40XX
 mcu:LPC43XX
+mcu:MIMXRT
 mcu:MIMXRT10XX
+mcu:MIMXRT11XX
 mcu:RP2040
 mcu:MSP432E4
 mcu:RX65X
diff --git a/examples/host/hid_controller/src/hid_app.c b/examples/host/hid_controller/src/hid_app.c
index 582e01959..76de97b41 100644
--- a/examples/host/hid_controller/src/hid_app.c
+++ b/examples/host/hid_controller/src/hid_app.c
@@ -91,9 +91,8 @@ typedef struct TU_ATTR_PACKED
     uint8_t counter : 6; // +1 each report
   };
 
-  // comment out since not used by this example
-  // uint8_t l2_trigger; // 0 released, 0xff fully pressed
-  // uint8_t r2_trigger; // as above
+  uint8_t l2_trigger; // 0 released, 0xff fully pressed
+  uint8_t r2_trigger; // as above
 
   //  uint16_t timestamp;
   //  uint8_t  battery;
@@ -105,15 +104,54 @@ typedef struct TU_ATTR_PACKED
 
 } sony_ds4_report_t;
 
+typedef struct TU_ATTR_PACKED {
+  // First 16 bits set what data is pertinent in this structure (1 = set; 0 = not set)
+  uint8_t set_rumble : 1;
+  uint8_t set_led : 1;
+  uint8_t set_led_blink : 1;
+  uint8_t set_ext_write : 1;
+  uint8_t set_left_volume : 1;
+  uint8_t set_right_volume : 1;
+  uint8_t set_mic_volume : 1;
+  uint8_t set_speaker_volume : 1;
+  uint8_t set_flags2;
+
+  uint8_t reserved;
+
+  uint8_t motor_right;
+  uint8_t motor_left;
+
+  uint8_t lightbar_red;
+  uint8_t lightbar_green;
+  uint8_t lightbar_blue;
+  uint8_t lightbar_blink_on;
+  uint8_t lightbar_blink_off;
+
+  uint8_t ext_data[8];
+
+  uint8_t volume_left;
+  uint8_t volume_right;
+  uint8_t volume_mic;
+  uint8_t volume_speaker;
+
+  uint8_t other[9];
+} sony_ds4_output_report_t;
+
+static bool ds4_mounted = false;
+static uint8_t ds4_dev_addr = 0;
+static uint8_t ds4_instance = 0;
+static uint8_t motor_left = 0;
+static uint8_t motor_right = 0;
+
 // check if device is Sony DualShock 4
 static inline bool is_sony_ds4(uint8_t dev_addr)
 {
   uint16_t vid, pid;
   tuh_vid_pid_get(dev_addr, &vid, &pid);
 
-  return ( (vid == 0x054c && (pid == 0x09cc || pid == 0x05c4)) // Sony DualShock4 
-           || (vid == 0x0f0d && pid == 0x005e)                 // Hori FC4 
-           || (vid == 0x0f0d && pid == 0x00ee)                 // Hori PS4 Mini (PS4-099U) 
+  return ( (vid == 0x054c && (pid == 0x09cc || pid == 0x05c4)) // Sony DualShock4
+           || (vid == 0x0f0d && pid == 0x005e)                 // Hori FC4
+           || (vid == 0x0f0d && pid == 0x00ee)                 // Hori PS4 Mini (PS4-099U)
            || (vid == 0x1f4f && pid == 0x1002)                 // ASW GG xrd controller
          );
 }
@@ -124,7 +162,23 @@ static inline bool is_sony_ds4(uint8_t dev_addr)
 
 void hid_app_task(void)
 {
-  // nothing to do
+  if (ds4_mounted)
+  {
+    const uint32_t interval_ms = 200;
+    static uint32_t start_ms = 0;
+
+    uint32_t current_time_ms = board_millis();
+    if ( current_time_ms - start_ms >= interval_ms)
+    {
+      start_ms = current_time_ms;
+
+      sony_ds4_output_report_t output_report = {0};
+      output_report.set_rumble = 1;
+      output_report.motor_left = motor_left;
+      output_report.motor_right = motor_right;
+      tuh_hid_send_report(ds4_dev_addr, ds4_instance, 5, &output_report, sizeof(output_report));
+    }
+  }
 }
 
 //--------------------------------------------------------------------+
@@ -149,6 +203,14 @@ void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_re
   // Sony DualShock 4 [CUH-ZCT2x]
   if ( is_sony_ds4(dev_addr) )
   {
+    if (!ds4_mounted)
+    {
+      ds4_dev_addr = dev_addr;
+      ds4_instance = instance;
+      motor_left = 0;
+      motor_right = 0;
+      ds4_mounted = true;
+    }
     // request to receive report
     // tuh_hid_report_received_cb() will be invoked when report is available
     if ( !tuh_hid_receive_report(dev_addr, instance) )
@@ -162,7 +224,10 @@ void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_re
 void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
 {
   printf("HID device address = %d, instance = %d is unmounted\r\n", dev_addr, instance);
-
+  if (ds4_mounted && ds4_dev_addr == dev_addr && ds4_instance == instance)
+  {
+    ds4_mounted = false;
+  }
 }
 
 // check if different than 2
@@ -180,8 +245,8 @@ bool diff_report(sony_ds4_report_t const* rpt1, sony_ds4_report_t const* rpt2)
   result = diff_than_2(rpt1->x, rpt2->x) || diff_than_2(rpt1->y , rpt2->y ) ||
            diff_than_2(rpt1->z, rpt2->z) || diff_than_2(rpt1->rz, rpt2->rz);
 
-  // check the reset with mem compare
-  result |= memcmp(&rpt1->rz + 1, &rpt2->rz + 1, sizeof(sony_ds4_report_t)-4);
+  // check the rest with mem compare
+  result |= memcmp(&rpt1->rz + 1, &rpt2->rz + 1, sizeof(sony_ds4_report_t)-6);
 
   return result;
 }
@@ -235,6 +300,10 @@ void process_sony_ds4(uint8_t const* report, uint16_t len)
       printf("\r\n");
     }
 
+    // The left and right triggers control the intensity of the left and right rumble motors
+    motor_left = ds4_report.l2_trigger;
+    motor_right = ds4_report.r2_trigger;
+
     prev_report = ds4_report;
   }
 }
diff --git a/examples/host/hid_controller/src/main.c b/examples/host/hid_controller/src/main.c
index b9b37a4d2..4dcc92587 100644
--- a/examples/host/hid_controller/src/main.c
+++ b/examples/host/hid_controller/src/main.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -49,9 +49,10 @@ int main(void)
   board_init();
 
   printf("TinyUSB Host HID Controller Example\r\n");
-  printf("Note: Events only displayed for explictly supported controllers\r\n");
+  printf("Note: Events only displayed for explicit supported controllers\r\n");
 
-  tusb_init();
+  // init host stack on configured roothub port
+  tuh_init(BOARD_TUH_RHPORT);
 
   while (1)
   {
@@ -67,8 +68,6 @@ int main(void)
     hid_app_task();
 #endif
   }
-
-  return 0;
 }
 
 //--------------------------------------------------------------------+
diff --git a/examples/host/hid_controller/src/tusb_config.h b/examples/host/hid_controller/src/tusb_config.h
index 74b471ae4..d37fc02d2 100644
--- a/examples/host/hid_controller/src/tusb_config.h
+++ b/examples/host/hid_controller/src/tusb_config.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -30,27 +30,48 @@
  extern "C" {
 #endif
 
+//--------------------------------------------------------------------+
+// Board Specific Configuration
+//--------------------------------------------------------------------+
+
+ #if CFG_TUSB_MCU == OPT_MCU_RP2040
+// change to 1 if using pico-pio-usb as host controller for raspberry rp2040
+#define CFG_TUH_RPI_PIO_USB   0
+#define BOARD_TUH_RHPORT      CFG_TUH_RPI_PIO_USB
+#endif
+
+// RHPort number used for host can be defined by board.mk, default to port 0
+#ifndef BOARD_TUH_RHPORT
+#define BOARD_TUH_RHPORT      0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUH_MAX_SPEED
+#define BOARD_TUH_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
+#endif
+
 //--------------------------------------------------------------------
 // COMMON CONFIGURATION
 //--------------------------------------------------------------------
 
 // defined by compiler flags for flexibility
 #ifndef CFG_TUSB_MCU
-  #error CFG_TUSB_MCU must be defined
+#error CFG_TUSB_MCU must be defined
 #endif
 
-#if CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX
-  #define CFG_TUSB_RHPORT0_MODE       (OPT_MODE_HOST | OPT_MODE_HIGH_SPEED)
-#else
-  #define CFG_TUSB_RHPORT0_MODE       OPT_MODE_HOST
+#ifndef CFG_TUSB_OS
+#define CFG_TUSB_OS           OPT_OS_NONE
 #endif
 
-#ifndef CFG_TUSB_OS
-#define CFG_TUSB_OS                 OPT_OS_NONE
+#ifndef CFG_TUSB_DEBUG
+#define CFG_TUSB_DEBUG        0
 #endif
 
-// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
-// #define CFG_TUSB_DEBUG           0
+// Enable Host stack
+#define CFG_TUH_ENABLED       1
+
+// Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
 
 /* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
  * Tinyusb use follows macros to declare transferring memory so that they can be put
@@ -59,12 +80,12 @@
  * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
  * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
  */
-#ifndef CFG_TUSB_MEM_SECTION
-#define CFG_TUSB_MEM_SECTION
+#ifndef CFG_TUH_MEM_SECTION
+#define CFG_TUH_MEM_SECTION
 #endif
 
-#ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
+#ifndef CFG_TUH_MEM_ALIGN
+#define CFG_TUH_MEM_ALIGN        __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
@@ -76,13 +97,12 @@
 
 #define CFG_TUH_HUB                 0
 #define CFG_TUH_CDC                 0
-#define CFG_TUH_HID                 4 // typical keyboard + mouse device can have 3-4 HID interfaces
+#define CFG_TUH_HID                 (3*CFG_TUH_DEVICE_MAX) // typical keyboard + mouse device can have 3-4 HID interfaces
 #define CFG_TUH_MSC                 0
 #define CFG_TUH_VENDOR              0
 
-// max device support (excluding hub device)
-// 1 hub typically has 4 ports
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1)
+// max device support (excluding hub device): 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
 
 //------------- HID -------------//
 
diff --git a/examples/host/hid_to_cdc/Makefile b/examples/host/hid_to_cdc/Makefile
deleted file mode 100644
index 3fe9b0888..000000000
--- a/examples/host/hid_to_cdc/Makefile
+++ /dev/null
@@ -1,19 +0,0 @@
-include ../../../tools/top.mk
-include ../../make.mk
-
-INC += \
-	src \
-	$(TOP)/hw \
-
-# Example source
-EXAMPLE_SOURCE += $(wildcard src/*.c)
-SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
-
-CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference
-
-SRC_C += \
-	src/class/hid/hid_host.c \
-	src/host/hub.c \
-	src/host/usbh.c
-
-include ../../rules.mk
diff --git a/examples/host/hid_to_cdc/only.txt b/examples/host/hid_to_cdc/only.txt
deleted file mode 100644
index 78d94e3ce..000000000
--- a/examples/host/hid_to_cdc/only.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-board:mimxrt1060_evk
-board:mimxrt1064_evk
diff --git a/examples/host/hid_to_cdc/src/main.c b/examples/host/hid_to_cdc/src/main.c
deleted file mode 100644
index cdf5d264e..000000000
--- a/examples/host/hid_to_cdc/src/main.c
+++ /dev/null
@@ -1,315 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2019 Ha Thach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- */
-
-// This example runs both host and device concurrently. The USB host looks for
-// any HID device with reports that are 8 bytes long and then assumes they are
-// keyboard reports. It translates the keypresses of the reports to ASCII and
-// transmits it over CDC to the device's host.
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "bsp/board.h"
-#include "tusb.h"
-
-//--------------------------------------------------------------------+
-// MACRO CONSTANT TYPEDEF PROTYPES
-//--------------------------------------------------------------------+
-
-// uncomment if you are using colemak layout
-// #define KEYBOARD_COLEMAK
-
-#ifdef KEYBOARD_COLEMAK
-const uint8_t colemak[128] = {
-  0  ,  0,  0,  0,  0,  0,  0, 22,
-  9  , 23,  7,  0, 24, 17,  8, 12,
-  0  , 14, 28, 51,  0, 19, 21, 10,
-  15 ,  0,  0,  0, 13,  0,  0,  0,
-  0  ,  0,  0,  0,  0,  0,  0,  0,
-  0  ,  0,  0,  0,  0,  0,  0,  0,
-  0  ,  0,  0, 18,  0,  0,  0,  0,
-  0  ,  0,  0,  0,  0,  0,  0,  0,
-  0  ,  0,  0,  0,  0,  0,  0,  0,
-  0  ,  0,  0,  0,  0,  0,  0,  0
-};
-#endif
-
-static uint8_t const keycode2ascii[128][2] =  { HID_KEYCODE_TO_ASCII };
-
-/* Blink pattern
- * - 250 ms  : device not mounted
- * - 1000 ms : device mounted
- * - 2500 ms : device is suspended
- */
-enum  {
-  BLINK_NOT_MOUNTED = 250,
-  BLINK_MOUNTED = 1000,
-  BLINK_SUSPENDED = 2500,
-};
-
-static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
-
-void led_blinking_task(void);
-void cdc_task(void);
-
-/*------------- MAIN -------------*/
-int main(void)
-{
-  board_init();
-  tusb_init();
-
-  while (1)
-  {
-    tud_task(); // tinyusb device task
-    tuh_task(); // tinyusb host task
-    led_blinking_task();
-
-    cdc_task();
-  }
-
-  return 0;
-}
-
-//--------------------------------------------------------------------+
-// Device callbacks
-//--------------------------------------------------------------------+
-
-// Invoked when device is mounted
-void tud_mount_cb(void)
-{
-  blink_interval_ms = BLINK_MOUNTED;
-}
-
-// Invoked when device is unmounted
-void tud_umount_cb(void)
-{
-  blink_interval_ms = BLINK_NOT_MOUNTED;
-}
-
-// Invoked when usb bus is suspended
-// remote_wakeup_en : if host allow us  to perform remote wakeup
-// Within 7ms, device must draw an average of current less than 2.5 mA from bus
-void tud_suspend_cb(bool remote_wakeup_en)
-{
-  (void) remote_wakeup_en;
-  blink_interval_ms = BLINK_SUSPENDED;
-}
-
-// Invoked when usb bus is resumed
-void tud_resume_cb(void)
-{
-  blink_interval_ms = BLINK_MOUNTED;
-}
-
-//--------------------------------------------------------------------+
-// Host callbacks
-//--------------------------------------------------------------------+
-
-// Invoked when device with hid interface is mounted
-// Report descriptor is also available for use. tuh_hid_parse_report_descriptor()
-// can be used to parse common/simple enough descriptor.
-// Note: if report descriptor length > CFG_TUH_ENUMERATION_BUFSIZE, it will be skipped
-// therefore report_desc = NULL, desc_len = 0
-void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_report, uint16_t desc_len)
-{
-  (void)desc_report;
-  (void)desc_len;
-  uint16_t vid, pid;
-  tuh_vid_pid_get(dev_addr, &vid, &pid);
-
-  printf("HID device address = %d, instance = %d is mounted\r\n", dev_addr, instance);
-  printf("VID = %04x, PID = %04x\r\n", vid, pid);
-
-  // Receive any report and treat it like a keyboard.
-  // tuh_hid_report_received_cb() will be invoked when report is available
-  if ( !tuh_hid_receive_report(dev_addr, instance) )
-  {
-    printf("Error: cannot request to receive report\r\n");
-  }
-}
-
-// Invoked when device with hid interface is un-mounted
-void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
-{
-  printf("HID device address = %d, instance = %d is unmounted\r\n", dev_addr, instance);
-}
-
-// keycodes from last report to check if key is holding or newly pressed
-uint8_t last_keycodes[6] = {0};
-
-// look up new key in previous keys
-static inline bool key_in_last_report(const uint8_t key_arr[6], uint8_t keycode)
-{
-  for(uint8_t i=0; i<6; i++)
-  {
-    if (key_arr[i] == keycode) return true;
-  }
-
-  return false;
-}
-
-// Invoked when received report from device via interrupt endpoint
-void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len)
-{
-  if (len != 8)
-  {
-    char ch_num;
-
-    tud_cdc_write_str("incorrect report len: ");
-
-    if ( len > 10 )
-    {
-      ch_num = '0' + (len / 10);
-      tud_cdc_write(&ch_num, 1);
-      len = len % 10;
-    }
-
-    ch_num = '0' + len;
-    tud_cdc_write(&ch_num, 1);
-
-    tud_cdc_write_str("\r\n");
-    tud_cdc_write_flush();
-
-    // Don't request a new report for a wrong sized endpoint.
-    return;
-  }
-
-  uint8_t const modifiers = report[0];
-  bool flush = false;
-
-  for (int i = 2; i < 8; i++)
-  {
-    uint8_t keycode = report[i];
-
-    if (keycode)
-    {
-      if ( key_in_last_report(last_keycodes, keycode) )
-      {
-        // exist in previous report means the current key is holding
-        // do nothing
-      }else
-      {
-        // not existed in previous report means the current key is pressed
-        // Only print keycodes 0 - 128.
-        if (keycode < 128)
-        {
-          // remap the key code for Colemak layout so @tannewt can type.
-          #ifdef KEYBOARD_COLEMAK
-          uint8_t colemak_key_code = colemak[keycode];
-          if (colemak_key_code != 0) keycode = colemak_key_code;
-          #endif
-
-          bool const is_shift = modifiers & (KEYBOARD_MODIFIER_LEFTSHIFT | KEYBOARD_MODIFIER_RIGHTSHIFT);
-          char c = keycode2ascii[keycode][is_shift ? 1 : 0];
-          if (c)
-          {
-            if (c == '\n') tud_cdc_write("\r", 1);
-            tud_cdc_write(&c, 1);
-            flush = true;
-          }
-        }
-      }
-    }
-  }
-
-  if (flush) tud_cdc_write_flush();
-
-  // save current report
-  memcpy(last_keycodes, report+2, 6);
-
-  // continue to request to receive report
-  if ( !tuh_hid_receive_report(dev_addr, instance) )
-  {
-    printf("Error: cannot request to receive report\r\n");
-  }
-}
-
-
-
-//--------------------------------------------------------------------+
-// USB CDC
-//--------------------------------------------------------------------+
-void cdc_task(void)
-{
-  // connected() check for DTR bit
-  // Most but not all terminal client set this when making connection
-  // if ( tud_cdc_connected() )
-  {
-    // connected and there are data available
-    if ( tud_cdc_available() )
-    {
-      // read datas
-      char buf[64];
-      uint32_t count = tud_cdc_read(buf, sizeof(buf));
-      (void) count;
-
-      // Echo back
-      // Note: Skip echo by commenting out write() and write_flush()
-      // for throughput test e.g
-      //    $ dd if=/dev/zero of=/dev/ttyACM0 count=10000
-      tud_cdc_write(buf, count);
-      tud_cdc_write_flush();
-    }
-  }
-}
-
-// Invoked when cdc when line state changed e.g connected/disconnected
-void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts)
-{
-  (void) itf;
-  (void) rts;
-
-  // TODO set some indicator
-  if ( dtr )
-  {
-    // Terminal connected
-  }else
-  {
-    // Terminal disconnected
-  }
-}
-
-// Invoked when CDC interface received data from host
-void tud_cdc_rx_cb(uint8_t itf)
-{
-  (void) itf;
-}
-
-//--------------------------------------------------------------------+
-// BLINKING TASK
-//--------------------------------------------------------------------+
-void led_blinking_task(void)
-{
-  static uint32_t start_ms = 0;
-  static bool led_state = false;
-
-  // Blink every interval ms
-  if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
-  start_ms += blink_interval_ms;
-
-  board_led_write(led_state);
-  led_state = 1 - led_state; // toggle
-}
diff --git a/examples/host/hid_to_cdc/src/tusb_config.h b/examples/host/hid_to_cdc/src/tusb_config.h
deleted file mode 100644
index 9a35ffc30..000000000
--- a/examples/host/hid_to_cdc/src/tusb_config.h
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * The MIT License (MIT)
- *
- * Copyright (c) 2019 Ha Thach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- */
-
-#ifndef _TUSB_CONFIG_H_
-#define _TUSB_CONFIG_H_
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-//--------------------------------------------------------------------
-// COMMON CONFIGURATION
-//--------------------------------------------------------------------
-
-// defined by board.mk
-#ifndef CFG_TUSB_MCU
-  #error CFG_TUSB_MCU must be defined
-#endif
-
-// RHPort number used for device can be defined by board.mk, default to port 0
-#ifndef BOARD_DEVICE_RHPORT_NUM
-  #define BOARD_DEVICE_RHPORT_NUM     0
-#endif
-
-// RHPort number used for device can be defined by board.mk, default to port 1
-#ifndef BOARD_HOST_RHPORT_NUM
-  #define BOARD_HOST_RHPORT_NUM     1
-#endif
-
-// RHPort max operational speed can defined by board.mk
-// Default to Highspeed for MCU with internal HighSpeed PHY (can be port specific), otherwise FullSpeed
-#ifndef BOARD_DEVICE_RHPORT_SPEED
-  #if TU_CHECK_MCU(OPT_MCU_LPC18XX, OPT_MCU_LPC43XX, OPT_MCU_MIMXRT10XX, OPT_MCU_NUC505) ||\
-      TU_CHECK_MCU(OPT_MCU_CXD56, OPT_MCU_SAMX7X, OPT_MCU_BCM2711) ||\
-      TU_CHECK_MCU(OPT_MCU_FT90X, OPT_MCU_FT93X)
-    #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_HIGH_SPEED
-  #else
-    #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_FULL_SPEED
-  #endif
-#endif
-
-// RHPort max operational speed can defined by board.mk
-// Default to Highspeed for MCU with internal HighSpeed PHY (can be port specific), otherwise FullSpeed
-#ifndef BOARD_HOST_RHPORT_SPEED
-  #if TU_CHECK_MCU(OPT_MCU_LPC18XX, OPT_MCU_LPC43XX, OPT_MCU_MIMXRT10XX, OPT_MCU_NUC505) ||\
-      TU_CHECK_MCU(OPT_MCU_CXD56, OPT_MCU_SAMX7X, OPT_MCU_BCM2711) ||\
-      TU_CHECK_MCU(OPT_MCU_FT90X, OPT_MCU_FT93X)
-    #define BOARD_HOST_RHPORT_SPEED   OPT_MODE_HIGH_SPEED
-  #else
-    #define BOARD_HOST_RHPORT_SPEED   OPT_MODE_FULL_SPEED
-  #endif
-#endif
-
-// Device mode with rhport and speed defined by board.mk
-#if   BOARD_DEVICE_RHPORT_NUM == 0
-  #define CFG_TUSB_RHPORT0_MODE     (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
-#elif BOARD_DEVICE_RHPORT_NUM == 1
-  #define CFG_TUSB_RHPORT1_MODE     (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
-#else
-  #error "Incorrect RHPort configuration"
-#endif
-
-// Device mode with rhport and speed defined by board.mk
-#if   BOARD_HOST_RHPORT_NUM == 0
-  #define CFG_TUSB_RHPORT0_MODE     (OPT_MODE_HOST | BOARD_HOST_RHPORT_SPEED)
-#elif BOARD_HOST_RHPORT_NUM == 1
-  #define CFG_TUSB_RHPORT1_MODE     (OPT_MODE_HOST | BOARD_HOST_RHPORT_SPEED)
-#else
-  #error "Incorrect RHPort configuration"
-#endif
-
-// This example doesn't use an RTOS
-#ifndef CFG_TUSB_OS
-#define CFG_TUSB_OS               OPT_OS_NONE
-#endif
-
-// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
-// #define CFG_TUSB_DEBUG           0
-
-/* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
- * Tinyusb use follows macros to declare transferring memory so that they can be put
- * into those specific section.
- * e.g
- * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
- * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
- */
-#ifndef CFG_TUSB_MEM_SECTION
-#define CFG_TUSB_MEM_SECTION
-#endif
-
-#ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
-#endif
-
-//--------------------------------------------------------------------
-// DEVICE CONFIGURATION
-//--------------------------------------------------------------------
-
-#ifndef CFG_TUD_ENDPOINT0_SIZE
-#define CFG_TUD_ENDPOINT0_SIZE    64
-#endif
-
-//------------- CLASS -------------//
-#define CFG_TUD_CDC              1
-#define CFG_TUD_MSC              0
-#define CFG_TUD_HID              0
-#define CFG_TUD_MIDI             0
-#define CFG_TUD_VENDOR           0
-
-// CDC FIFO size of TX and RX
-#define CFG_TUD_CDC_RX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
-#define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
-
-// CDC Endpoint transfer buffer size, more is faster
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
-
-//--------------------------------------------------------------------
-// HOST CONFIGURATION
-//--------------------------------------------------------------------
-
-// Size of buffer to hold descriptors and other data used for enumeration
-#define CFG_TUH_ENUMERATION_BUFSIZE 256
-
-#define CFG_TUH_HUB                 1
-#define CFG_TUH_CDC                 0
-#define CFG_TUH_MSC                 0
-#define CFG_TUH_VENDOR              0
-
-// max device support (excluding hub device)
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
-
-//------------- HID -------------//
-#define CFG_TUH_HID                  4
-#define CFG_TUH_HID_EPIN_BUFSIZE    64
-#define CFG_TUH_HID_EPOUT_BUFSIZE   64
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* _TUSB_CONFIG_H_ */
diff --git a/examples/host/hid_to_cdc/src/usb_descriptors.c b/examples/host/hid_to_cdc/src/usb_descriptors.c
deleted file mode 100644
index 7dd73937c..000000000
--- a/examples/host/hid_to_cdc/src/usb_descriptors.c
+++ /dev/null
@@ -1,266 +0,0 @@
-/* 
- * The MIT License (MIT)
- *
- * Copyright (c) 2019 Ha Thach (tinyusb.org)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- */
-
-#include "tusb.h"
-
-/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
- * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
- *
- * Auto ProductID layout's Bitmap:
- *   [MSB]         HID | MSC | CDC          [LSB]
- */
-#define _PID_MAP(itf, n)  ( (CFG_TUD_##itf) << (n) )
-#define USB_PID           (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
-                           _PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4) )
-
-#define USB_VID   0xCafe
-#define USB_BCD   0x0200
-
-//--------------------------------------------------------------------+
-// Device Descriptors
-//--------------------------------------------------------------------+
-tusb_desc_device_t const desc_device =
-{
-  .bLength            = sizeof(tusb_desc_device_t),
-  .bDescriptorType    = TUSB_DESC_DEVICE,
-  .bcdUSB             = USB_BCD,
-
-  // Use Interface Association Descriptor (IAD) for CDC
-  // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
-  .bDeviceClass       = TUSB_CLASS_MISC,
-  .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
-  .bDeviceProtocol    = MISC_PROTOCOL_IAD,
-
-  .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
-
-  .idVendor           = USB_VID,
-  .idProduct          = USB_PID,
-  .bcdDevice          = 0x0100,
-
-  .iManufacturer      = 0x01,
-  .iProduct           = 0x02,
-  .iSerialNumber      = 0x03,
-
-  .bNumConfigurations = 0x01
-};
-
-// Invoked when received GET DEVICE DESCRIPTOR
-// Application return pointer to descriptor
-uint8_t const * tud_descriptor_device_cb(void)
-{
-  return (uint8_t const *) &desc_device;
-}
-
-//--------------------------------------------------------------------+
-// Configuration Descriptor
-//--------------------------------------------------------------------+
-
-enum
-{
-  ITF_NUM_CDC = 0,
-  ITF_NUM_CDC_DATA,
-  ITF_NUM_MSC,
-  ITF_NUM_TOTAL
-};
-
-#if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || CFG_TUSB_MCU == OPT_MCU_LPC40XX
-  // LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number
-  // 0 control, 1 In, 2 Bulk, 3 Iso, 4 In, 5 Bulk etc ...
-  #define EPNUM_CDC_NOTIF   0x81
-  #define EPNUM_CDC_OUT     0x02
-  #define EPNUM_CDC_IN      0x82
-
-#elif CFG_TUSB_MCU == OPT_MCU_SAMG  || CFG_TUSB_MCU ==  OPT_MCU_SAMX7X
-  // SAMG & SAME70 don't support a same endpoint number with different direction IN and OUT
-  //    e.g EP1 OUT & EP1 IN cannot exist together
-  #define EPNUM_CDC_NOTIF   0x81
-  #define EPNUM_CDC_OUT     0x02
-  #define EPNUM_CDC_IN      0x83
-
-#elif CFG_TUSB_MCU == OPT_MCU_CXD56
-  // CXD56 doesn't support a same endpoint number with different direction IN and OUT
-  //    e.g EP1 OUT & EP1 IN cannot exist together
-  // CXD56 USB driver has fixed endpoint type (bulk/interrupt/iso) and direction (IN/OUT) by its number
-  // 0 control (IN/OUT), 1 Bulk (IN), 2 Bulk (OUT), 3 In (IN), 4 Bulk (IN), 5 Bulk (OUT), 6 In (IN)
-  #define EPNUM_CDC_NOTIF   0x83
-  #define EPNUM_CDC_OUT     0x02
-  #define EPNUM_CDC_IN      0x81
-
-#elif CFG_TUSB_MCU == OPT_MCU_FT90X || CFG_TUSB_MCU == OPT_MCU_FT93X
-  // FT9XX doesn't support a same endpoint number with different direction IN and OUT
-  //    e.g EP1 OUT & EP1 IN cannot exist together
-  #define EPNUM_CDC_NOTIF   0x81
-  #define EPNUM_CDC_OUT     0x02
-  #define EPNUM_CDC_IN      0x83
-
-#else
-  #define EPNUM_CDC_NOTIF   0x81
-  #define EPNUM_CDC_OUT     0x02
-  #define EPNUM_CDC_IN      0x82
-
-#endif
-
-#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
-
-// full speed configuration
-uint8_t const desc_fs_configuration[] =
-{
-  // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
-
-  // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64),
-};
-
-#if TUD_OPT_HIGH_SPEED
-// Per USB specs: high speed capable device must report device_qualifier and other_speed_configuration
-
-// high speed configuration
-uint8_t const desc_hs_configuration[] =
-{
-  // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
-
-  // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 512),
-};
-
-// other speed configuration
-uint8_t desc_other_speed_config[CONFIG_TOTAL_LEN];
-
-// device qualifier is mostly similar to device descriptor since we don't change configuration based on speed
-tusb_desc_device_qualifier_t const desc_device_qualifier =
-{
-  .bLength            = sizeof(tusb_desc_device_qualifier_t),
-  .bDescriptorType    = TUSB_DESC_DEVICE_QUALIFIER,
-  .bcdUSB             = USB_BCD,
-
-  .bDeviceClass       = TUSB_CLASS_MISC,
-  .bDeviceSubClass    = MISC_SUBCLASS_COMMON,
-  .bDeviceProtocol    = MISC_PROTOCOL_IAD,
-
-  .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
-  .bNumConfigurations = 0x01,
-  .bReserved          = 0x00
-};
-
-// Invoked when received GET DEVICE QUALIFIER DESCRIPTOR request
-// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete.
-// device_qualifier descriptor describes information about a high-speed capable device that would
-// change if the device were operating at the other speed. If not highspeed capable stall this request.
-uint8_t const* tud_descriptor_device_qualifier_cb(void)
-{
-  return (uint8_t const*) &desc_device_qualifier;
-}
-
-// Invoked when received GET OTHER SEED CONFIGURATION DESCRIPTOR request
-// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-// Configuration descriptor in the other speed e.g if high speed then this is for full speed and vice versa
-uint8_t const* tud_descriptor_other_speed_configuration_cb(uint8_t index)
-{
-  (void) index; // for multiple configurations
-
-  // if link speed is high return fullspeed config, and vice versa
-  // Note: the descriptor type is OHER_SPEED_CONFIG instead of CONFIG
-  memcpy(desc_other_speed_config,
-         (tud_speed_get() == TUSB_SPEED_HIGH) ? desc_fs_configuration : desc_hs_configuration,
-         CONFIG_TOTAL_LEN);
-
-  desc_other_speed_config[1] = TUSB_DESC_OTHER_SPEED_CONFIG;
-
-  return desc_other_speed_config;
-}
-
-#endif // highspeed
-
-
-// Invoked when received GET CONFIGURATION DESCRIPTOR
-// Application return pointer to descriptor
-// Descriptor contents must exist long enough for transfer to complete
-uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
-{
-  (void) index; // for multiple configurations
-
-#if TUD_OPT_HIGH_SPEED
-  // Although we are highspeed, host may be fullspeed.
-  return (tud_speed_get() == TUSB_SPEED_HIGH) ?  desc_hs_configuration : desc_fs_configuration;
-#else
-  return desc_fs_configuration;
-#endif
-}
-
-//--------------------------------------------------------------------+
-// String Descriptors
-//--------------------------------------------------------------------+
-
-// array of pointer to string descriptors
-char const* string_desc_arr [] =
-{
-  (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
-  "TinyUSB",                     // 1: Manufacturer
-  "TinyUSB Device",              // 2: Product
-  "123456789012",                // 3: Serials, should use chip ID
-  "TinyUSB CDC",                 // 4: CDC Interface
-};
-
-static uint16_t _desc_str[32];
-
-// Invoked when received GET STRING DESCRIPTOR request
-// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
-{
-  (void) langid;
-
-  uint8_t chr_count;
-
-  if ( index == 0)
-  {
-    memcpy(&_desc_str[1], string_desc_arr[0], 2);
-    chr_count = 1;
-  }else
-  {
-    // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
-    // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
-
-    if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
-
-    const char* str = string_desc_arr[index];
-
-    // Cap at max char
-    chr_count = (uint8_t) strlen(str);
-    if ( chr_count > 31 ) chr_count = 31;
-
-    // Convert ASCII string into UTF-16
-    for(uint8_t i=0; i<chr_count; i++)
-    {
-      _desc_str[1+i] = str[i];
-    }
-  }
-
-  // first byte is length (including header), second byte is string type
-  _desc_str[0] = (TUSB_DESC_STRING << 8 ) | (2*chr_count + 2);
-
-  return _desc_str;
-}
diff --git a/examples/host/hid_to_cdc/CMakeLists.txt b/examples/host/msc_file_explorer/CMakeLists.txt
index abc4d91da..7955b3078 100644
--- a/examples/host/hid_to_cdc/CMakeLists.txt
+++ b/examples/host/msc_file_explorer/CMakeLists.txt
@@ -15,14 +15,24 @@ add_executable(${PROJECT})
 # Example source
 target_sources(${PROJECT} PUBLIC
         ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
-        ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
+        ${CMAKE_CURRENT_SOURCE_DIR}/src/msc_app.c
+        ${TOP}/lib/fatfs/source/ff.c
+        ${TOP}/lib/fatfs/source/ffsystem.c
+        ${TOP}/lib/fatfs/source/ffunicode.c
         )
 
 # Example include
 target_include_directories(${PROJECT} PUBLIC
         ${CMAKE_CURRENT_SOURCE_DIR}/src
+        ${TOP}/lib/fatfs/source
+        ${TOP}/lib/embedded-cli
         )
 
 # Configure compilation flags and libraries for the example... see the corresponding function
 # in hw/bsp/FAMILY/family.cmake for details.
-family_configure_device_example(${PROJECT})
\ No newline at end of file
+family_configure_host_example(${PROJECT})
+
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/msc_file_explorer/Makefile b/examples/host/msc_file_explorer/Makefile
new file mode 100644
index 000000000..1fda72b18
--- /dev/null
+++ b/examples/host/msc_file_explorer/Makefile
@@ -0,0 +1,37 @@
+include ../../make.mk
+
+FATFS_PATH = lib/fatfs/source
+
+INC += \
+	src \
+	$(TOP)/hw \
+	$(TOP)/$(FATFS_PATH) \
+	$(TOP)/lib/embedded-cli \
+
+# Example source
+EXAMPLE_SOURCE = \
+  src/main.c \
+  src/msc_app.c \
+
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+
+# FatFS source
+SRC_C += \
+  $(FATFS_PATH)/ff.c \
+  $(FATFS_PATH)/ffsystem.c \
+  $(FATFS_PATH)/ffunicode.c \
+
+# suppress warning caused by fatfs
+CFLAGS += -Wno-error=cast-qual
+
+# TinyUSB Host Stack source
+SRC_C += \
+	src/class/cdc/cdc_host.c \
+	src/class/hid/hid_host.c \
+	src/class/msc/msc_host.c \
+	src/host/hub.c \
+	src/host/usbh.c \
+	src/portable/ohci/ohci.c \
+	src/portable/nxp/lpc17_40/hcd_lpc17_40.c
+
+include ../../rules.mk
diff --git a/examples/host/msc_file_explorer/only.txt b/examples/host/msc_file_explorer/only.txt
new file mode 100644
index 000000000..fa9c14857
--- /dev/null
+++ b/examples/host/msc_file_explorer/only.txt
@@ -0,0 +1,11 @@
+mcu:LPC175X_6X
+mcu:LPC177X_8X
+mcu:LPC18XX
+mcu:LPC40XX
+mcu:LPC43XX
+mcu:MIMXRT
+mcu:MIMXRT10XX
+mcu:MIMXRT11XX
+mcu:RP2040
+mcu:MSP432E4
+mcu:RX65X
diff --git a/examples/host/msc_file_explorer/src/main.c b/examples/host/msc_file_explorer/src/main.c
new file mode 100644
index 000000000..7b1c2ef27
--- /dev/null
+++ b/examples/host/msc_file_explorer/src/main.c
@@ -0,0 +1,127 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+/* Example to show how to navigate mass storage device with built-in command line.
+ * Type help for list of supported commands and syntax (mostly linux commands)
+
+ > help
+ * help
+        Print list of commands
+ * cat
+        Usage: cat [FILE]...
+        Concatenate FILE(s) to standard output..
+ * cd
+        Usage: cd [DIR]...
+        Change the current directory to DIR.
+ * cp
+        Usage: cp SOURCE DEST
+        Copy SOURCE to DEST.
+ * ls
+        Usage: ls [DIR]...
+        List information about the FILEs (the current directory by default).
+ * pwd
+        Usage: pwd
+        Print the name of the current working directory.
+ * mkdir
+        Usage: mkdir DIR...
+        Create the DIRECTORY(ies), if they do not already exist..
+ * mv
+        Usage: mv SOURCE DEST...
+        Rename SOURCE to DEST.
+ * rm
+        Usage: rm [FILE]...
+        Remove (unlink) the FILE(s).
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board.h"
+#include "tusb.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+void led_blinking_task(void);
+
+// from msc_app.c
+extern bool msc_app_init(void);
+extern void msc_app_task(void);
+
+/*------------- MAIN -------------*/
+int main(void)
+{
+  board_init();
+
+  printf("TinyUSB Host MassStorage Explorer Example\r\n");
+
+  // init host stack on configured roothub port
+  tuh_init(BOARD_TUH_RHPORT);
+  msc_app_init();
+
+  while (1)
+  {
+    // tinyusb host task
+    tuh_task();
+
+    msc_app_task();
+    led_blinking_task();
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Callbacks
+//--------------------------------------------------------------------+
+
+void tuh_mount_cb(uint8_t dev_addr)
+{
+  (void) dev_addr;
+}
+
+void tuh_umount_cb(uint8_t dev_addr)
+{
+  (void) dev_addr;
+}
+
+//--------------------------------------------------------------------+
+// Blinking Task
+//--------------------------------------------------------------------+
+void led_blinking_task(void)
+{
+  const uint32_t interval_ms = 1000;
+  static uint32_t start_ms = 0;
+
+  static bool led_state = false;
+
+  // Blink every interval ms
+  if ( board_millis() - start_ms < interval_ms) return; // not enough time
+  start_ms += interval_ms;
+
+  board_led_write(led_state);
+  led_state = 1 - led_state; // toggle
+}
diff --git a/examples/host/msc_file_explorer/src/msc_app.c b/examples/host/msc_file_explorer/src/msc_app.c
new file mode 100644
index 000000000..003e2865b
--- /dev/null
+++ b/examples/host/msc_file_explorer/src/msc_app.c
@@ -0,0 +1,640 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#include <ctype.h>
+#include "tusb.h"
+#include "bsp/board.h"
+
+#include "ff.h"
+#include "diskio.h"
+
+// lib/embedded-cli
+#define EMBEDDED_CLI_IMPL
+#include "embedded_cli.h"
+
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
+//--------------------------------------------------------------------+
+
+//------------- embedded-cli -------------//
+#define CLI_BUFFER_SIZE     512
+#define CLI_RX_BUFFER_SIZE  16
+#define CLI_CMD_BUFFER_SIZE 64
+#define CLI_HISTORY_SIZE    32
+#define CLI_BINDING_COUNT   8
+
+static EmbeddedCli *_cli;
+static CLI_UINT cli_buffer[BYTES_TO_CLI_UINTS(CLI_BUFFER_SIZE)];
+
+//------------- Elm Chan FatFS -------------//
+static FATFS fatfs[CFG_TUH_DEVICE_MAX]; // for simplicity only support 1 LUN per device
+static volatile bool _disk_busy[CFG_TUH_DEVICE_MAX];
+
+static scsi_inquiry_resp_t inquiry_resp;
+
+//--------------------------------------------------------------------+
+//
+//--------------------------------------------------------------------+
+
+bool cli_init(void);
+
+bool msc_app_init(void)
+{
+  for(size_t i=0; i<CFG_TUH_DEVICE_MAX; i++) _disk_busy[i] = false;
+
+  // disable stdout buffered for echoing typing command
+  setbuf(stdout, NULL);
+  cli_init();
+
+  return true;
+}
+
+void msc_app_task(void)
+{
+  if (!_cli) return;
+
+  int ch = board_getchar();
+  if ( ch > 0 )
+  {
+    while( ch > 0 )
+    {
+      embeddedCliReceiveChar(_cli, (char) ch);
+      ch = board_getchar();
+    }
+    embeddedCliProcess(_cli);
+  }
+}
+
+//--------------------------------------------------------------------+
+//
+//--------------------------------------------------------------------+
+
+
+bool inquiry_complete_cb(uint8_t dev_addr, tuh_msc_complete_data_t const * cb_data)
+{
+  msc_cbw_t const* cbw = cb_data->cbw;
+  msc_csw_t const* csw = cb_data->csw;
+
+  if (csw->status != 0)
+  {
+    printf("Inquiry failed\r\n");
+    return false;
+  }
+
+  // Print out Vendor ID, Product ID and Rev
+  printf("%.8s %.16s rev %.4s\r\n", inquiry_resp.vendor_id, inquiry_resp.product_id, inquiry_resp.product_rev);
+
+  // Get capacity of device
+  uint32_t const block_count = tuh_msc_get_block_count(dev_addr, cbw->lun);
+  uint32_t const block_size = tuh_msc_get_block_size(dev_addr, cbw->lun);
+
+  printf("Disk Size: %lu MB\r\n", block_count / ((1024*1024)/block_size));
+  // printf("Block Count = %lu, Block Size: %lu\r\n", block_count, block_size);
+
+  // For simplicity: we only mount 1 LUN per device
+  uint8_t const drive_num = dev_addr-1;
+  char drive_path[3] = "0:";
+  drive_path[0] += drive_num;
+
+  if ( f_mount(&fatfs[drive_num], drive_path, 1) != FR_OK )
+  {
+    puts("mount failed");
+  }
+
+  // change to newly mounted drive
+  f_chdir(drive_path);
+
+  // print the drive label
+//  char label[34];
+//  if ( FR_OK == f_getlabel(drive_path, label, NULL) )
+//  {
+//    puts(label);
+//  }
+
+  return true;
+}
+
+//------------- IMPLEMENTATION -------------//
+void tuh_msc_mount_cb(uint8_t dev_addr)
+{
+  printf("A MassStorage device is mounted\r\n");
+
+  uint8_t const lun = 0;
+  tuh_msc_inquiry(dev_addr, lun, &inquiry_resp, inquiry_complete_cb, 0);
+}
+
+void tuh_msc_umount_cb(uint8_t dev_addr)
+{
+  printf("A MassStorage device is unmounted\r\n");
+
+  uint8_t const drive_num = dev_addr-1;
+  char drive_path[3] = "0:";
+  drive_path[0] += drive_num;
+
+  f_unmount(drive_path);
+
+//  if ( phy_disk == f_get_current_drive() )
+//  { // active drive is unplugged --> change to other drive
+//    for(uint8_t i=0; i<CFG_TUH_DEVICE_MAX; i++)
+//    {
+//      if ( disk_is_ready(i) )
+//      {
+//        f_chdrive(i);
+//        cli_init(); // refractor, rename
+//      }
+//    }
+//  }
+}
+
+//--------------------------------------------------------------------+
+// DiskIO
+//--------------------------------------------------------------------+
+
+static void wait_for_disk_io(BYTE pdrv)
+{
+  while(_disk_busy[pdrv])
+  {
+    tuh_task();
+  }
+}
+
+static bool disk_io_complete(uint8_t dev_addr, tuh_msc_complete_data_t const * cb_data)
+{
+  (void) dev_addr; (void) cb_data;
+  _disk_busy[dev_addr-1] = false;
+  return true;
+}
+
+DSTATUS disk_status (
+	BYTE pdrv		/* Physical drive nmuber to identify the drive */
+)
+{
+  uint8_t dev_addr = pdrv + 1;
+  return tuh_msc_mounted(dev_addr) ? 0 : STA_NODISK;
+}
+
+DSTATUS disk_initialize (
+	BYTE pdrv				/* Physical drive nmuber to identify the drive */
+)
+{
+  (void) pdrv;
+	return 0; // nothing to do
+}
+
+DRESULT disk_read (
+	BYTE pdrv,		/* Physical drive nmuber to identify the drive */
+	BYTE *buff,		/* Data buffer to store read data */
+	LBA_t sector,	/* Start sector in LBA */
+	UINT count		/* Number of sectors to read */
+)
+{
+	uint8_t const dev_addr = pdrv + 1;
+	uint8_t const lun = 0;
+
+	_disk_busy[pdrv] = true;
+	tuh_msc_read10(dev_addr, lun, buff, sector, (uint16_t) count, disk_io_complete, 0);
+	wait_for_disk_io(pdrv);
+
+	return RES_OK;
+}
+
+#if FF_FS_READONLY == 0
+
+DRESULT disk_write (
+	BYTE pdrv,			/* Physical drive nmuber to identify the drive */
+	const BYTE *buff,	/* Data to be written */
+	LBA_t sector,		/* Start sector in LBA */
+	UINT count			/* Number of sectors to write */
+)
+{
+	uint8_t const dev_addr = pdrv + 1;
+	uint8_t const lun = 0;
+
+	_disk_busy[pdrv] = true;
+	tuh_msc_write10(dev_addr, lun, buff, sector, (uint16_t) count, disk_io_complete, 0);
+	wait_for_disk_io(pdrv);
+
+	return RES_OK;
+}
+
+#endif
+
+DRESULT disk_ioctl (
+	BYTE pdrv,		/* Physical drive nmuber (0..) */
+	BYTE cmd,		/* Control code */
+	void *buff		/* Buffer to send/receive control data */
+)
+{
+  uint8_t const dev_addr = pdrv + 1;
+  uint8_t const lun = 0;
+  switch ( cmd )
+  {
+    case CTRL_SYNC:
+      // nothing to do since we do blocking
+      return RES_OK;
+
+    case GET_SECTOR_COUNT:
+      *((DWORD*) buff) = (WORD) tuh_msc_get_block_count(dev_addr, lun);
+      return RES_OK;
+
+    case GET_SECTOR_SIZE:
+      *((WORD*) buff) = (WORD) tuh_msc_get_block_size(dev_addr, lun);
+      return RES_OK;
+
+    case GET_BLOCK_SIZE:
+      *((DWORD*) buff) = 1;    // erase block size in units of sector size
+      return RES_OK;
+
+    default:
+      return RES_PARERR;
+  }
+
+	return RES_OK;
+}
+
+//--------------------------------------------------------------------+
+// CLI Commands
+//--------------------------------------------------------------------+
+
+void cli_cmd_cat(EmbeddedCli *cli, char *args, void *context);
+void cli_cmd_cd(EmbeddedCli *cli, char *args, void *context);
+void cli_cmd_cp(EmbeddedCli *cli, char *args, void *context);
+void cli_cmd_ls(EmbeddedCli *cli, char *args, void *context);
+void cli_cmd_pwd(EmbeddedCli *cli, char *args, void *context);
+void cli_cmd_mkdir(EmbeddedCli *cli, char *args, void *context);
+void cli_cmd_mv(EmbeddedCli *cli, char *args, void *context);
+void cli_cmd_rm(EmbeddedCli *cli, char *args, void *context);
+
+void cli_write_char(EmbeddedCli *cli, char c)
+{
+  (void) cli;
+  putchar((int) c);
+}
+
+void cli_cmd_unknown(EmbeddedCli *cli, CliCommand *command)
+{
+  (void) cli;
+  printf("%s: command not found\r\n", command->name);
+}
+
+bool cli_init(void)
+{
+  EmbeddedCliConfig *config = embeddedCliDefaultConfig();
+  config->cliBuffer         = cli_buffer;
+  config->cliBufferSize     = CLI_BUFFER_SIZE;
+  config->rxBufferSize      = CLI_RX_BUFFER_SIZE;
+  config->cmdBufferSize     = CLI_CMD_BUFFER_SIZE;
+  config->historyBufferSize = CLI_HISTORY_SIZE;
+  config->maxBindingCount   = CLI_BINDING_COUNT;
+
+  TU_ASSERT(embeddedCliRequiredSize(config) <= CLI_BUFFER_SIZE);
+
+  _cli = embeddedCliNew(config);
+  TU_ASSERT(_cli != NULL);
+
+  _cli->writeChar = cli_write_char;
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "cat",
+    "Usage: cat [FILE]...\r\n\tConcatenate FILE(s) to standard output..",
+    true,
+    NULL,
+    cli_cmd_cat
+  });
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "cd",
+    "Usage: cd [DIR]...\r\n\tChange the current directory to DIR.",
+    true,
+    NULL,
+    cli_cmd_cd
+  });
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "cp",
+    "Usage: cp SOURCE DEST\r\n\tCopy SOURCE to DEST.",
+    true,
+    NULL,
+    cli_cmd_cp
+  });
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "ls",
+    "Usage: ls [DIR]...\r\n\tList information about the FILEs (the current directory by default).",
+    true,
+    NULL,
+    cli_cmd_ls
+  });
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "pwd",
+    "Usage: pwd\r\n\tPrint the name of the current working directory.",
+    true,
+    NULL,
+    cli_cmd_pwd
+  });
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "mkdir",
+    "Usage: mkdir DIR...\r\n\tCreate the DIRECTORY(ies), if they do not already exist..",
+    true,
+    NULL,
+    cli_cmd_mkdir
+  });
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "mv",
+    "Usage: mv SOURCE DEST...\r\n\tRename SOURCE to DEST.",
+    true,
+    NULL,
+    cli_cmd_mv
+  });
+
+  embeddedCliAddBinding(_cli, (CliCommandBinding) {
+    "rm",
+    "Usage: rm [FILE]...\r\n\tRemove (unlink) the FILE(s).",
+    true,
+    NULL,
+    cli_cmd_rm
+  });
+
+  return true;
+}
+
+void cli_cmd_cat(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+
+  uint16_t argc = embeddedCliGetTokenCount(args);
+
+  // need at least 1 argument
+  if ( argc == 0 )
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  for(uint16_t i=0; i<argc; i++)
+  {
+    FIL fi;
+    const char* fpath = embeddedCliGetToken(args, i+1); // token count from 1
+
+    if ( FR_OK != f_open(&fi, fpath, FA_READ) )
+    {
+      printf("%s: No such file or directory\r\n", fpath);
+    }else
+    {
+      uint8_t buf[512];
+      UINT count = 0;
+      while ( (FR_OK == f_read(&fi, buf, sizeof(buf), &count)) && (count > 0) )
+      {
+        for(UINT c = 0; c < count; c++)
+        {
+          const uint8_t ch = buf[c];
+          if (isprint(ch) || iscntrl(ch))
+          {
+            putchar(ch);
+          }else
+          {
+            putchar('.');
+          }
+        }
+      }
+    }
+
+    f_close(&fi);
+  }
+}
+
+void cli_cmd_cd(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+
+  uint16_t argc = embeddedCliGetTokenCount(args);
+
+  // only support 1 argument
+  if ( argc != 1 )
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  // default is current directory
+  const char* dpath = args;
+
+  if ( FR_OK != f_chdir(dpath) )
+  {
+    printf("%s: No such file or directory\r\n", dpath);
+    return;
+  }
+}
+
+void cli_cmd_cp(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+
+  uint16_t argc = embeddedCliGetTokenCount(args);
+  if ( argc != 2 )
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  // default is current directory
+  const char* src = embeddedCliGetToken(args, 1);
+  const char* dst = embeddedCliGetToken(args, 2);
+
+  FIL f_src;
+  FIL f_dst;
+
+  if ( FR_OK != f_open(&f_src, src, FA_READ) )
+  {
+    printf("cannot stat '%s': No such file or directory\r\n", src);
+    return;
+  }
+
+  if ( FR_OK != f_open(&f_dst, dst, FA_WRITE | FA_CREATE_ALWAYS) )
+  {
+    printf("cannot create '%s'\r\n", dst);
+    return;
+  }else
+  {
+    uint8_t buf[512];
+    UINT rd_count = 0;
+    while ( (FR_OK == f_read(&f_src, buf, sizeof(buf), &rd_count)) && (rd_count > 0) )
+    {
+      UINT wr_count = 0;
+
+      if ( FR_OK != f_write(&f_dst, buf, rd_count, &wr_count) )
+      {
+        printf("cannot write to '%s'\r\n", dst);
+        break;
+      }
+    }
+  }
+
+  f_close(&f_src);
+  f_close(&f_dst);
+}
+
+void cli_cmd_ls(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+
+  uint16_t argc = embeddedCliGetTokenCount(args);
+
+  // only support 1 argument
+  if ( argc > 1 )
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  // default is current directory
+  const char* dpath = ".";
+  if (argc) dpath = args;
+
+  DIR dir;
+  if ( FR_OK != f_opendir(&dir, dpath) )
+  {
+    printf("cannot access '%s': No such file or directory\r\n", dpath);
+    return;
+  }
+
+  FILINFO fno;
+  while( (f_readdir(&dir, &fno) == FR_OK) && (fno.fname[0] != 0) )
+  {
+    if ( fno.fname[0] != '.' ) // ignore . and .. entry
+    {
+      if ( fno.fattrib & AM_DIR )
+      {
+        // directory
+        printf("/%s\r\n", fno.fname);
+      }else
+      {
+        printf("%-40s", fno.fname);
+        if (fno.fsize < 1024)
+        {
+          printf("%lu B\r\n", fno.fsize);
+        }else
+        {
+          printf("%lu KB\r\n", fno.fsize / 1024);
+        }
+      }
+    }
+  }
+
+  f_closedir(&dir);
+}
+
+void cli_cmd_pwd(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+  uint16_t argc = embeddedCliGetTokenCount(args);
+
+  if (argc != 0)
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  char path[256];
+  if (FR_OK != f_getcwd(path, sizeof(path)))
+  {
+    printf("cannot get current working directory\r\n");
+  }
+
+  puts(path);
+}
+
+void cli_cmd_mkdir(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+
+  uint16_t argc = embeddedCliGetTokenCount(args);
+
+  // only support 1 argument
+  if ( argc != 1 )
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  // default is current directory
+  const char* dpath = args;
+
+  if ( FR_OK != f_mkdir(dpath) )
+  {
+    printf("%s: cannot create this directory\r\n", dpath);
+    return;
+  }
+}
+
+void cli_cmd_mv(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+
+  uint16_t argc = embeddedCliGetTokenCount(args);
+  if ( argc != 2 )
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  // default is current directory
+  const char* src = embeddedCliGetToken(args, 1);
+  const char* dst = embeddedCliGetToken(args, 2);
+
+  if ( FR_OK != f_rename(src, dst) )
+  {
+    printf("cannot mv %s to %s\r\n", src, dst);
+    return;
+  }
+}
+
+void cli_cmd_rm(EmbeddedCli *cli, char *args, void *context)
+{
+  (void) cli; (void) context;
+
+  uint16_t argc = embeddedCliGetTokenCount(args);
+
+  // need at least 1 argument
+  if ( argc == 0 )
+  {
+    printf("invalid arguments\r\n");
+    return;
+  }
+
+  for(uint16_t i=0; i<argc; i++)
+  {
+    const char* fpath = embeddedCliGetToken(args, i+1); // token count from 1
+
+    if ( FR_OK != f_unlink(fpath) )
+    {
+      printf("cannot remove '%s': No such file or directory\r\n", fpath);
+    }
+  }
+}
diff --git a/examples/host/msc_file_explorer/src/tusb_config.h b/examples/host/msc_file_explorer/src/tusb_config.h
new file mode 100644
index 000000000..1e0d067bf
--- /dev/null
+++ b/examples/host/msc_file_explorer/src/tusb_config.h
@@ -0,0 +1,114 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#ifndef _TUSB_CONFIG_H_
+#define _TUSB_CONFIG_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// Board Specific Configuration
+//--------------------------------------------------------------------+
+
+#if CFG_TUSB_MCU == OPT_MCU_RP2040
+// change to 1 if using pico-pio-usb as host controller for raspberry rp2040
+#define CFG_TUH_RPI_PIO_USB   0
+#define BOARD_TUH_RHPORT      CFG_TUH_RPI_PIO_USB
+#endif
+
+// RHPort number used for host can be defined by board.mk, default to port 0
+#ifndef BOARD_TUH_RHPORT
+#define BOARD_TUH_RHPORT      0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUH_MAX_SPEED
+#define BOARD_TUH_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
+#endif
+
+//--------------------------------------------------------------------
+// COMMON CONFIGURATION
+//--------------------------------------------------------------------
+
+// defined by compiler flags for flexibility
+#ifndef CFG_TUSB_MCU
+#error CFG_TUSB_MCU must be defined
+#endif
+
+#ifndef CFG_TUSB_OS
+#define CFG_TUSB_OS           OPT_OS_NONE
+#endif
+
+#ifndef CFG_TUSB_DEBUG
+#define CFG_TUSB_DEBUG        0
+#endif
+
+// Enable Host stack
+#define CFG_TUH_ENABLED       1
+
+// Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
+
+/* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
+ * Tinyusb use follows macros to declare transferring memory so that they can be put
+ * into those specific section.
+ * e.g
+ * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
+ * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
+ */
+#ifndef CFG_TUH_MEM_SECTION
+#define CFG_TUH_MEM_SECTION
+#endif
+
+#ifndef CFG_TUH_MEM_ALIGN
+#define CFG_TUH_MEM_ALIGN        __attribute__ ((aligned(4)))
+#endif
+
+//--------------------------------------------------------------------
+// CONFIGURATION
+//--------------------------------------------------------------------
+
+// Size of buffer to hold descriptors and other data used for enumeration
+#define CFG_TUH_ENUMERATION_BUFSIZE 256
+
+#define CFG_TUH_HUB                 1 // number of supported hubs
+#define CFG_TUH_MSC                 1
+#define CFG_TUH_CDC                 0
+#define CFG_TUH_HID                 0 // typical keyboard + mouse device can have 3-4 HID interfaces
+#define CFG_TUH_VENDOR              0
+
+// max device support (excluding hub device): 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
+
+//------------- MSC -------------//
+#define CFG_TUH_MSC_MAXLUN    4 // typical for most card reader
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CONFIG_H_ */