add host/device_info example

11 files changed, 479 insertions, 128 deletions

diff --git a/examples/dual/host_hid_to_device_cdc/src/main.c b/examples/dual/host_hid_to_device_cdc/src/main.c
index 96a2beff5..0b4165e38 100644
--- a/examples/dual/host_hid_to_device_cdc/src/main.c
+++ b/examples/dual/host_hid_to_device_cdc/src/main.c
@@ -55,14 +55,14 @@ const uint8_t colemak[128] = {
 };
 #endif
 
-static uint8_t const keycode2ascii[128][2] =  { HID_KEYCODE_TO_ASCII };
+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  {
+enum {
   BLINK_NOT_MOUNTED = 250,
   BLINK_MOUNTED = 1000,
   BLINK_SUSPENDED = 2500,
@@ -73,8 +73,7 @@ static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
 void led_blinking_task(void);
 
 /*------------- MAIN -------------*/
-int main(void)
-{
+int main(void) {
   board_init();
 
   printf("TinyUSB Host HID <-> Device CDC Example\r\n");
@@ -87,8 +86,7 @@ int main(void)
     board_init_after_tusb();
   }
 
-  while (1)
-  {
+  while (1) {
     tud_task(); // tinyusb device task
     tuh_task(); // tinyusb host task
     led_blinking_task();
@@ -102,35 +100,30 @@ int main(void)
 //--------------------------------------------------------------------+
 
 // Invoked when device is mounted
-void tud_mount_cb(void)
-{
+void tud_mount_cb(void) {
   blink_interval_ms = BLINK_MOUNTED;
 }
 
 // Invoked when device is unmounted
-void tud_umount_cb(void)
-{
+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 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)
-{
+void tud_resume_cb(void) {
   blink_interval_ms = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
 }
 
 // Invoked when CDC interface received data from host
-void tud_cdc_rx_cb(uint8_t itf)
-{
+void tud_cdc_rx_cb(uint8_t itf) {
   (void) itf;
 
   char buf[64];
@@ -149,38 +142,36 @@ void tud_cdc_rx_cb(uint8_t itf)
 // 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;
+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;
 
   // Interface protocol (hid_interface_protocol_enum_t)
-  const char* protocol_str[] = { "None", "Keyboard", "Mouse" };
+  const char* protocol_str[] = {"None", "Keyboard", "Mouse"};
   uint8_t const itf_protocol = tuh_hid_interface_protocol(dev_addr, instance);
 
   uint16_t vid, pid;
   tuh_vid_pid_get(dev_addr, &vid, &pid);
 
   char tempbuf[256];
-  int count = sprintf(tempbuf, "[%04x:%04x][%u] HID Interface%u, Protocol = %s\r\n", vid, pid, dev_addr, instance, protocol_str[itf_protocol]);
+  int count = sprintf(
+      tempbuf, "[%04x:%04x][%u] HID Interface%u, Protocol = %s\r\n", vid, pid, dev_addr, instance,
+      protocol_str[itf_protocol]);
 
   tud_cdc_write(tempbuf, (uint32_t) count);
   tud_cdc_write_flush();
 
   // Receive report from boot keyboard & mouse only
   // tuh_hid_report_received_cb() will be invoked when report is available
-  if (itf_protocol == HID_ITF_PROTOCOL_KEYBOARD || itf_protocol == HID_ITF_PROTOCOL_MOUSE)
-  {
-    if ( !tuh_hid_receive_report(dev_addr, instance) )
-    {
+  if (itf_protocol == HID_ITF_PROTOCOL_KEYBOARD || itf_protocol == HID_ITF_PROTOCOL_MOUSE) {
+    if (!tuh_hid_receive_report(dev_addr, instance)) {
       tud_cdc_write_str("Error: cannot request report\r\n");
     }
   }
 }
 
 // Invoked when device with hid interface is un-mounted
-void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
-{
+void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance) {
   char tempbuf[256];
   int count = sprintf(tempbuf, "[%u] HID Interface%u is unmounted\r\n", dev_addr, instance);
   tud_cdc_write(tempbuf, (uint32_t) count);
@@ -188,11 +179,9 @@ void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
 }
 
 // look up new key in previous keys
-static inline bool find_key_in_report(hid_keyboard_report_t const *report, uint8_t keycode)
-{
-  for(uint8_t i=0; i<6; i++)
-  {
-    if (report->keycode[i] == keycode)  return true;
+static inline bool find_key_in_report(hid_keyboard_report_t const* report, uint8_t keycode) {
+  for (uint8_t i = 0; i < 6; i++) {
+    if (report->keycode[i] == keycode) return true;
   }
 
   return false;
@@ -200,22 +189,17 @@ static inline bool find_key_in_report(hid_keyboard_report_t const *report, uint8
 
 
 // convert hid keycode to ascii and print via usb device CDC (ignore non-printable)
-static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const *report)
-{
+static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const* report) {
   (void) dev_addr;
-  static hid_keyboard_report_t prev_report = { 0, 0, {0} }; // previous report to check key released
+  static hid_keyboard_report_t prev_report = {0, 0, {0}}; // previous report to check key released
   bool flush = false;
 
-  for(uint8_t i=0; i<6; i++)
-  {
+  for (uint8_t i = 0; i < 6; i++) {
     uint8_t keycode = report->keycode[i];
-    if ( keycode )
-    {
-      if ( find_key_in_report(&prev_report, keycode) )
-      {
+    if (keycode) {
+      if (find_key_in_report(&prev_report, keycode)) {
         // exist in previous report means the current key is holding
-      }else
-      {
+      } else {
         // not existed in previous report means the current key is pressed
 
         // remap the key code for Colemak layout
@@ -227,8 +211,7 @@ static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const *re
         bool const is_shift = report->modifier & (KEYBOARD_MODIFIER_LEFTSHIFT | KEYBOARD_MODIFIER_RIGHTSHIFT);
         uint8_t ch = keycode2ascii[keycode][is_shift ? 1 : 0];
 
-        if (ch)
-        {
+        if (ch) {
           if (ch == '\n') tud_cdc_write("\r", 1);
           tud_cdc_write(&ch, 1);
           flush = true;
@@ -244,13 +227,12 @@ static void process_kbd_report(uint8_t dev_addr, hid_keyboard_report_t const *re
 }
 
 // send mouse report to usb device CDC
-static void process_mouse_report(uint8_t dev_addr, hid_mouse_report_t const * report)
-{
+static void process_mouse_report(uint8_t dev_addr, hid_mouse_report_t const* report) {
   //------------- button state  -------------//
   //uint8_t button_changed_mask = report->buttons ^ prev_report.buttons;
-  char l = report->buttons & MOUSE_BUTTON_LEFT   ? 'L' : '-';
+  char l = report->buttons & MOUSE_BUTTON_LEFT ? 'L' : '-';
   char m = report->buttons & MOUSE_BUTTON_MIDDLE ? 'M' : '-';
-  char r = report->buttons & MOUSE_BUTTON_RIGHT  ? 'R' : '-';
+  char r = report->buttons & MOUSE_BUTTON_RIGHT ? 'R' : '-';
 
   char tempbuf[32];
   int count = sprintf(tempbuf, "[%u] %c%c%c %d %d %d\r\n", dev_addr, l, m, r, report->x, report->y, report->wheel);
@@ -260,27 +242,25 @@ static void process_mouse_report(uint8_t dev_addr, hid_mouse_report_t const * re
 }
 
 // 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)
-{
+void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len) {
   (void) len;
   uint8_t const itf_protocol = tuh_hid_interface_protocol(dev_addr, instance);
 
-  switch(itf_protocol)
-  {
+  switch (itf_protocol) {
     case HID_ITF_PROTOCOL_KEYBOARD:
-      process_kbd_report(dev_addr, (hid_keyboard_report_t const*) report );
-    break;
+      process_kbd_report(dev_addr, (hid_keyboard_report_t const*) report);
+      break;
 
     case HID_ITF_PROTOCOL_MOUSE:
-      process_mouse_report(dev_addr, (hid_mouse_report_t const*) report );
-    break;
+      process_mouse_report(dev_addr, (hid_mouse_report_t const*) report);
+      break;
 
-    default: break;
+    default:
+      break;
   }
 
   // continue to request to receive report
-  if ( !tuh_hid_receive_report(dev_addr, instance) )
-  {
+  if (!tuh_hid_receive_report(dev_addr, instance)) {
     tud_cdc_write_str("Error: cannot request report\r\n");
   }
 }
@@ -288,13 +268,12 @@ void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t cons
 //--------------------------------------------------------------------+
 // Blinking Task
 //--------------------------------------------------------------------+
-void led_blinking_task(void)
-{
+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
+  if (board_millis() - start_ms < blink_interval_ms) return; // not enough time
   start_ms += blink_interval_ms;
 
   board_led_write(led_state);
diff --git a/examples/dual/host_hid_to_device_cdc/src/tusb_config.h b/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
index 8133ed418..2843e0b83 100644
--- a/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
+++ b/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
@@ -23,8 +23,8 @@
  *
  */
 
-#ifndef _TUSB_CONFIG_H_
-#define _TUSB_CONFIG_H_
+#ifndef TUSB_CONFIG_H_
+#define TUSB_CONFIG_H_
 
 #ifdef __cplusplus
  extern "C" {
@@ -144,4 +144,4 @@
  }
 #endif
 
-#endif /* _TUSB_CONFIG_H_ */
+#endif
diff --git a/examples/dual/host_hid_to_device_cdc/src/usb_descriptors.c b/examples/dual/host_hid_to_device_cdc/src/usb_descriptors.c
index 293620042..9d57737fb 100644
--- a/examples/dual/host_hid_to_device_cdc/src/usb_descriptors.c
+++ b/examples/dual/host_hid_to_device_cdc/src/usb_descriptors.c
@@ -42,44 +42,41 @@
 //--------------------------------------------------------------------+
 // Device Descriptors
 //--------------------------------------------------------------------+
-tusb_desc_device_t const desc_device =
-{
-  .bLength            = sizeof(tusb_desc_device_t),
-  .bDescriptorType    = TUSB_DESC_DEVICE,
-  .bcdUSB             = USB_BCD,
+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,
+    // 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,
+    .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-  .idVendor           = USB_VID,
-  .idProduct          = USB_PID,
-  .bcdDevice          = 0x0100,
+    .idVendor           = USB_VID,
+    .idProduct          = USB_PID,
+    .bcdDevice          = 0x0100,
 
-  .iManufacturer      = 0x01,
-  .iProduct           = 0x02,
-  .iSerialNumber      = 0x03,
+    .iManufacturer      = 0x01,
+    .iProduct           = 0x02,
+    .iSerialNumber      = 0x03,
 
-  .bNumConfigurations = 0x01
+    .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;
+uint8_t const* tud_descriptor_device_cb(void) {
+  return (uint8_t const*) &desc_device;
 }
 
 //--------------------------------------------------------------------+
 // Configuration Descriptor
 //--------------------------------------------------------------------+
 
-enum
-{
+enum {
   ITF_NUM_CDC = 0,
   ITF_NUM_CDC_DATA,
   ITF_NUM_TOTAL
@@ -92,7 +89,7 @@ enum
   #define EPNUM_CDC_OUT     0x02
   #define EPNUM_CDC_IN      0x82
 
-#elif CFG_TUSB_MCU == OPT_MCU_SAMG  || CFG_TUSB_MCU ==  OPT_MCU_SAMX7X
+#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
@@ -109,7 +106,7 @@ enum
   #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
+// 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
@@ -125,21 +122,19 @@ enum
 #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),
+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),
+    // 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[] =
-{
+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),
 
@@ -151,8 +146,7 @@ uint8_t const desc_hs_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 =
-{
+tusb_desc_device_qualifier_t const desc_device_qualifier = {
   .bLength            = sizeof(tusb_desc_device_qualifier_t),
   .bDescriptorType    = TUSB_DESC_DEVICE_QUALIFIER,
   .bcdUSB             = USB_BCD,
@@ -170,16 +164,14 @@ tusb_desc_device_qualifier_t const desc_device_qualifier =
 // 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)
-{
+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)
-{
+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
@@ -199,8 +191,7 @@ uint8_t const* tud_descriptor_other_speed_configuration_cb(uint8_t index)
 // 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)
-{
+uint8_t const* tud_descriptor_configuration_cb(uint8_t index) {
   (void) index; // for multiple configurations
 
 #if TUD_OPT_HIGH_SPEED
@@ -224,24 +215,23 @@ enum {
 };
 
 // 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
-  NULL,                          // 3: Serials will use unique ID if possible
-  "TinyUSB CDC",                 // 4: CDC Interface
+char const* string_desc_arr[] = {
+    (const char[]) {0x09, 0x04}, // 0: is supported language is English (0x0409)
+    "TinyUSB",                     // 1: Manufacturer
+    "TinyUSB Device",              // 2: Product
+    NULL,                          // 3: Serials will use unique ID if possible
+    "TinyUSB CDC",                 // 4: CDC Interface
 };
 
 static uint16_t _desc_str[32 + 1];
 
 // 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) {
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
   (void) langid;
   size_t chr_count;
 
-  switch ( index ) {
+  switch (index) {
     case STRID_LANGID:
       memcpy(&_desc_str[1], string_desc_arr[0], 2);
       chr_count = 1;
@@ -255,17 +245,17 @@ uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
       // 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;
+      if (!(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0]))) return NULL;
 
-      const char *str = string_desc_arr[index];
+      const char* str = string_desc_arr[index];
 
       // Cap at max char
       chr_count = strlen(str);
       size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1; // -1 for string type
-      if ( chr_count > max_count ) chr_count = max_count;
+      if (chr_count > max_count) chr_count = max_count;
 
       // Convert ASCII string into UTF-16
-      for ( size_t i = 0; i < chr_count; i++ ) {
+      for (size_t i = 0; i < chr_count; i++) {
         _desc_str[1 + i] = str[i];
       }
       break;
diff --git a/examples/host/CMakeLists.txt b/examples/host/CMakeLists.txt
index e6a2ece14..793f6ab08 100644
--- a/examples/host/CMakeLists.txt
+++ b/examples/host/CMakeLists.txt
@@ -9,5 +9,6 @@ family_initialize_project(tinyusb_host_examples ${CMAKE_CURRENT_LIST_DIR})
 family_add_subdirectory(bare_api)
 family_add_subdirectory(cdc_msc_hid)
 family_add_subdirectory(cdc_msc_hid_freertos)
+family_add_subdirectory(device_info)
 family_add_subdirectory(hid_controller)
 family_add_subdirectory(msc_file_explorer)
diff --git a/examples/host/bare_api/src/main.c b/examples/host/bare_api/src/main.c
index 670e58498..ae574c078 100644
--- a/examples/host/bare_api/src/main.c
+++ b/examples/host/bare_api/src/main.c
@@ -23,10 +23,6 @@
  *
  */
 
-/* This example current worked and tested with following controller
- * - Sony DualShock 4 [CUH-ZCT2x] VID = 0x054c, PID = 0x09cc
- */
-
 
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/examples/host/bare_api/src/tusb_config.h b/examples/host/bare_api/src/tusb_config.h
index 432446e94..fab233be0 100644
--- a/examples/host/bare_api/src/tusb_config.h
+++ b/examples/host/bare_api/src/tusb_config.h
@@ -23,8 +23,8 @@
  *
  */
 
-#ifndef _TUSB_CONFIG_H_
-#define _TUSB_CONFIG_H_
+#ifndef TUSB_CONFIG_H_
+#define TUSB_CONFIG_H_
 
 #ifdef __cplusplus
  extern "C" {
@@ -118,4 +118,4 @@
  }
 #endif
 
-#endif /* _TUSB_CONFIG_H_ */
+#endif
diff --git a/examples/host/device_info/CMakeLists.txt b/examples/host/device_info/CMakeLists.txt
new file mode 100644
index 000000000..76182d6fa
--- /dev/null
+++ b/examples/host/device_info/CMakeLists.txt
@@ -0,0 +1,32 @@
+cmake_minimum_required(VERSION 3.17)
+
+include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
+
+# gets PROJECT name for the example
+family_get_project_name(PROJECT ${CMAKE_CURRENT_LIST_DIR})
+
+project(${PROJECT} C CXX ASM)
+
+# Checks this example is valid for the family and initializes the project
+family_initialize_project(${PROJECT} ${CMAKE_CURRENT_LIST_DIR})
+
+# Espressif has its own cmake build system
+if(FAMILY STREQUAL "espressif")
+  return()
+endif()
+
+add_executable(${PROJECT})
+
+# Example source
+target_sources(${PROJECT} PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
+        )
+
+# Example include
+target_include_directories(${PROJECT} PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}/src
+        )
+
+# Configure compilation flags and libraries for the example without RTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_host_example(${PROJECT} noos)
diff --git a/examples/host/device_info/Makefile b/examples/host/device_info/Makefile
new file mode 100644
index 000000000..0235e08c3
--- /dev/null
+++ b/examples/host/device_info/Makefile
@@ -0,0 +1,13 @@
+include ../../build_system/make/make.mk
+
+INC += \
+	src \
+	$(TOP)/hw \
+
+# Example source
+EXAMPLE_SOURCE += \
+	src/main.c
+
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+
+include ../../build_system/make/rules.mk
diff --git a/examples/host/device_info/only.txt b/examples/host/device_info/only.txt
new file mode 100644
index 000000000..fee10f9e2
--- /dev/null
+++ b/examples/host/device_info/only.txt
@@ -0,0 +1,14 @@
+mcu:KINETIS_KL
+mcu:LPC175X_6X
+mcu:LPC177X_8X
+mcu:LPC18XX
+mcu:LPC40XX
+mcu:LPC43XX
+mcu:MIMXRT1XXX
+mcu:MIMXRT10XX
+mcu:MIMXRT11XX
+mcu:RP2040
+mcu:MSP432E4
+mcu:RX65X
+mcu:RAXXX
+mcu:MAX3421
diff --git a/examples/host/device_info/src/main.c b/examples/host/device_info/src/main.c
new file mode 100644
index 000000000..60d7e9c80
--- /dev/null
+++ b/examples/host/device_info/src/main.c
@@ -0,0 +1,211 @@
+/*
+ * 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.
+ *
+ */
+
+/* Host example will get device descriptors of attached devices and print it out via
+ * device cdc (Serial) as follows:
+ *    Device 1: ID 046d:c52f
+      Device Descriptor:
+        bLength             18
+        bDescriptorType     1
+        bcdUSB              0200
+        bDeviceClass        0
+        bDeviceSubClass     0
+        bDeviceProtocol     0
+        bMaxPacketSize0     8
+        idVendor            0x046d
+        idProduct           0xc52f
+        bcdDevice           2200
+        iManufacturer       1     Logitech
+        iProduct            2     USB Receiver
+        iSerialNumber       0
+        bNumConfigurations  1
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board_api.h"
+#include "tusb.h"
+
+// English
+#define LANGUAGE_ID 0x0409
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+void led_blinking_task(void);
+static void print_utf16(uint16_t* temp_buf, size_t buf_len);
+
+/*------------- MAIN -------------*/
+int main(void) {
+  board_init();
+
+  printf("TinyUSB Device Info Example\r\n");
+
+  // init host stack on configured roothub port
+  tuh_init(BOARD_TUH_RHPORT);
+
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
+  while (1) {
+    // tinyusb host task
+    tuh_task();
+    led_blinking_task();
+  }
+
+  return 0;
+}
+
+/*------------- TinyUSB Callbacks -------------*/
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb(uint8_t daddr) {
+  // Get Device Descriptor
+  tusb_desc_device_t desc_device;
+  uint8_t xfer_result = tuh_descriptor_get_device_sync(daddr, &desc_device, 18);
+  if (XFER_RESULT_SUCCESS != xfer_result) {
+    printf("Failed to get device descriptor\r\n");
+    return;
+  }
+
+  uint16_t buf[256];
+
+  printf("Device %u: ID %04x:%04x\r\n", daddr, desc_device.idVendor, desc_device.idProduct);
+  printf("Device Descriptor:\r\n");
+  printf("  bLength             %u\r\n", desc_device.bLength);
+  printf("  bDescriptorType     %u\r\n", desc_device.bDescriptorType);
+  printf("  bcdUSB              %04x\r\n", desc_device.bcdUSB);
+  printf("  bDeviceClass        %u\r\n", desc_device.bDeviceClass);
+  printf("  bDeviceSubClass     %u\r\n", desc_device.bDeviceSubClass);
+  printf("  bDeviceProtocol     %u\r\n", desc_device.bDeviceProtocol);
+  printf("  bMaxPacketSize0     %u\r\n", desc_device.bMaxPacketSize0);
+  printf("  idVendor            0x%04x\r\n", desc_device.idVendor);
+  printf("  idProduct           0x%04x\r\n", desc_device.idProduct);
+  printf("  bcdDevice           %04x\r\n", desc_device.bcdDevice);
+
+  // Get String descriptor using Sync API
+
+  printf("  iManufacturer       %u     ", desc_device.iManufacturer);
+  xfer_result = tuh_descriptor_get_manufacturer_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  printf("\r\n");
+
+  printf("  iProduct            %u     ", desc_device.iProduct);
+  xfer_result = tuh_descriptor_get_product_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  printf("\r\n");
+
+  printf("  iSerialNumber       %u     ", desc_device.iSerialNumber);
+  xfer_result = tuh_descriptor_get_serial_string_sync(daddr, LANGUAGE_ID, buf, sizeof(buf));
+  if (XFER_RESULT_SUCCESS == xfer_result) {
+    print_utf16(buf, TU_ARRAY_SIZE(buf));
+  }
+  printf("\r\n");
+
+  printf("  bNumConfigurations  %u\r\n", desc_device.bNumConfigurations);
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t daddr) {
+  printf("Device removed, address = %d\r\n", daddr);
+}
+
+//--------------------------------------------------------------------+
+// 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
+}
+
+//--------------------------------------------------------------------+
+// String Descriptor Helper
+//--------------------------------------------------------------------+
+
+static void _convert_utf16le_to_utf8(const uint16_t* utf16, size_t utf16_len, uint8_t* utf8, size_t utf8_len) {
+  // TODO: Check for runover.
+  (void) utf8_len;
+  // Get the UTF-16 length out of the data itself.
+
+  for (size_t i = 0; i < utf16_len; i++) {
+    uint16_t chr = utf16[i];
+    if (chr < 0x80) {
+      *utf8++ = chr & 0xffu;
+    } else if (chr < 0x800) {
+      *utf8++ = (uint8_t) (0xC0 | (chr >> 6 & 0x1F));
+      *utf8++ = (uint8_t) (0x80 | (chr >> 0 & 0x3F));
+    } else {
+      // TODO: Verify surrogate.
+      *utf8++ = (uint8_t) (0xE0 | (chr >> 12 & 0x0F));
+      *utf8++ = (uint8_t) (0x80 | (chr >> 6 & 0x3F));
+      *utf8++ = (uint8_t) (0x80 | (chr >> 0 & 0x3F));
+    }
+    // TODO: Handle UTF-16 code points that take two entries.
+  }
+}
+
+// Count how many bytes a utf-16-le encoded string will take in utf-8.
+static int _count_utf8_bytes(const uint16_t* buf, size_t len) {
+  size_t total_bytes = 0;
+  for (size_t i = 0; i < len; i++) {
+    uint16_t chr = buf[i];
+    if (chr < 0x80) {
+      total_bytes += 1;
+    } else if (chr < 0x800) {
+      total_bytes += 2;
+    } else {
+      total_bytes += 3;
+    }
+    // TODO: Handle UTF-16 code points that take two entries.
+  }
+  return (int) total_bytes;
+}
+
+static void print_utf16(uint16_t* temp_buf, size_t buf_len) {
+  if ((temp_buf[0] & 0xff) == 0) return;  // empty
+  size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t);
+  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';
+
+  printf("%s", (char*) temp_buf);
+}
diff --git a/examples/host/device_info/src/tusb_config.h b/examples/host/device_info/src/tusb_config.h
new file mode 100644
index 000000000..484f651b1
--- /dev/null
+++ b/examples/host/device_info/src/tusb_config.h
@@ -0,0 +1,115 @@
+/*
+ * 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 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
+
+/* 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
+
+//--------------------------------------------------------------------
+// Host Configuration
+//--------------------------------------------------------------------
+
+// Enable Host stack
+#define CFG_TUH_ENABLED       1
+
+#if CFG_TUSB_MCU == OPT_MCU_RP2040
+   #define CFG_TUH_RPI_PIO_USB   1 // use pio-usb as host controller
+  // #define CFG_TUH_MAX3421       1 // use max3421 as host controller
+
+  // host roothub port is 1 if using either pio-usb or max3421
+  #if (defined(CFG_TUH_RPI_PIO_USB) && CFG_TUH_RPI_PIO_USB) || (defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421)
+    #define BOARD_TUH_RHPORT      1
+  #endif
+#endif
+
+// Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
+
+//------------------------- Board Specific --------------------------
+
+// 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
+
+//--------------------------------------------------------------------
+// Driver Configuration
+//--------------------------------------------------------------------
+
+// Size of buffer to hold descriptors and other data used for enumeration
+#define CFG_TUH_ENUMERATION_BUFSIZE 256
+
+// only hub class is enabled
+#define CFG_TUH_HUB                 1
+
+// max device support (excluding hub device)
+// 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif