Merge pull request #2686 from hathach/add-host-devinfo

42 files changed, 1376 insertions, 195 deletions

diff --git a/.idea/cmake.xml b/.idea/cmake.xml
index 5568609dd..1055e31d3 100644
--- a/.idea/cmake.xml
+++ b/.idea/cmake.xml
@@ -3,6 +3,7 @@
   <component name="CMakeSharedSettings">
     <configurations>
       <configuration PROFILE_NAME="pico" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberry_pi_pico -DLOG=1" />
+      <configuration PROFILE_NAME="pico pio-host" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=raspberry_pi_pico -DLOG=1 -DCFLAGS_CLI=&quot;-DCFG_TUH_RPI_PIO_USB=1&quot;" BUILD_OPTIONS="-v" />
       <configuration PROFILE_NAME="feather_rp2040" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=pico_sdk -DPICO_BOARD=adafruit_feather_rp2040 -DLOG=2" />
       <configuration PROFILE_NAME="feather_rp2040_max3421" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=feather_rp2040_max3421 -DLOG=2" />
       <configuration PROFILE_NAME="metro_rp2040" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=pico_sdk -DPICO_BOARD=adafruit_metro_rp2040 -DLOG=2 -DMAX3421_HOST=1" />
@@ -131,8 +132,9 @@
       <configuration PROFILE_NAME="fomu" ENABLED="false" GENERATION_OPTIONS="-DBOARD=fomu" />
       <configuration PROFILE_NAME="sipeed_longan_nano" ENABLED="false" GENERATION_OPTIONS="-DBOARD=sipeed_longan_nano" />
       <configuration PROFILE_NAME="nanoch32v203" ENABLED="false" GENERATION_OPTIONS="-DBOARD=nanoch32v203" />
-      <configuration PROFILE_NAME="ch32v203_r0_1v0" ENABLED="true" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203_r0_1v0" />
-      <configuration PROFILE_NAME="ch32v203_r0_1v0 USBFS" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203_r0_1v0 -DPORT=1" />
+      <configuration PROFILE_NAME="ch32v203c_r0_1v0" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203c_r0_1v0" />
+      <configuration PROFILE_NAME="ch32v203c_r0_1v0 USBFS" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203c_r0_1v0 -DPORT=1" />
+      <configuration PROFILE_NAME="ch32v203g_r0_1v0" ENABLED="false" CONFIG_NAME="MinSizeRel" GENERATION_OPTIONS="-DBOARD=ch32v203g_r0_1v0" />
       <configuration PROFILE_NAME="ch32v307v_r1_1v0" ENABLED="false" GENERATION_OPTIONS="-DBOARD=ch32v307v_r1_1v0 -DLOG=2" />
       <configuration PROFILE_NAME="ch32v307v_r1_1v0 USBFS" ENABLED="false" GENERATION_OPTIONS="-DBOARD=ch32v307v_r1_1v0 -DSPEED=full" />
     </configurations>
diff --git a/examples/build_system/make/make.mk b/examples/build_system/make/make.mk
index a78f4130d..1500a51e0 100644
--- a/examples/build_system/make/make.mk
+++ b/examples/build_system/make/make.mk
@@ -109,6 +109,10 @@ INC += \
 BOARD_UPPER = $(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,$(subst z,Z,$(subst -,_,$(BOARD))))))))))))))))))))))))))))
 CFLAGS += -DBOARD_$(BOARD_UPPER)
 
+ifdef CFLAGS_CLI
+	CFLAGS += $(CFLAGS_CLI)
+endif
+
 # use max3421 as host controller
 ifeq (${MAX3421_HOST},1)
   SRC_C += src/portable/analog/max3421/hcd_max3421.c
diff --git a/examples/device/cdc_msc/skip.txt b/examples/device/cdc_msc/skip.txt
index 833fd072c..b6252e405 100644
--- a/examples/device/cdc_msc/skip.txt
+++ b/examples/device/cdc_msc/skip.txt
@@ -1,2 +1,3 @@
 mcu:SAMD11
 family:espressif
+board:ch32v203g_r0_1v0
diff --git a/examples/device/dynamic_configuration/skip.txt b/examples/device/dynamic_configuration/skip.txt
index 833fd072c..b6252e405 100644
--- a/examples/device/dynamic_configuration/skip.txt
+++ b/examples/device/dynamic_configuration/skip.txt
@@ -1,2 +1,3 @@
 mcu:SAMD11
 family:espressif
+board:ch32v203g_r0_1v0
diff --git a/examples/dual/CMakeLists.txt b/examples/dual/CMakeLists.txt
index 15081cf26..f11074e93 100644
--- a/examples/dual/CMakeLists.txt
+++ b/examples/dual/CMakeLists.txt
@@ -10,4 +10,5 @@ if (FAMILY STREQUAL "rp2040" AND NOT TARGET tinyusb_pico_pio_usb)
 else ()
   # family_add_subdirectory will filter what to actually add based on selected FAMILY
   family_add_subdirectory(host_hid_to_device_cdc)
+  family_add_subdirectory(host_info_to_device_cdc)
 endif ()
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/dual/host_info_to_device_cdc/CMakeLists.txt b/examples/dual/host_info_to_device_cdc/CMakeLists.txt
new file mode 100644
index 000000000..a6557c2d0
--- /dev/null
+++ b/examples/dual/host_info_to_device_cdc/CMakeLists.txt
@@ -0,0 +1,40 @@
+cmake_minimum_required(VERSION 3.17)
+
+include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
+
+# gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)
+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} ${CMAKE_CURRENT_LIST_DIR})
+
+add_executable(${PROJECT})
+
+# Example source
+target_sources(${PROJECT} PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/usb_descriptors.c
+  )
+
+# Example include
+target_include_directories(${PROJECT} PUBLIC
+  ${CMAKE_CURRENT_SOURCE_DIR}/src
+  )
+
+# Configure compilation flags and libraries for the example without RTOS.
+# See the corresponding function in hw/bsp/FAMILY/family.cmake for details.
+family_configure_dual_usb_example(${PROJECT} noos)
+
+# due to warnings from Pico-PIO-USB
+target_compile_options(${PROJECT} PUBLIC
+  -Wno-error=shadow
+  -Wno-error=cast-align
+  -Wno-error=cast-qual
+  -Wno-error=redundant-decls
+  -Wno-error=sign-conversion
+  -Wno-error=conversion
+  -Wno-error=sign-compare
+  -Wno-error=unused-function
+  )
diff --git a/examples/dual/host_info_to_device_cdc/Makefile b/examples/dual/host_info_to_device_cdc/Makefile
new file mode 100644
index 000000000..0ede79c17
--- /dev/null
+++ b/examples/dual/host_info_to_device_cdc/Makefile
@@ -0,0 +1,17 @@
+include ../../build_system/make/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/host/hub.c \
+	src/host/usbh.c
+
+include ../../build_system/make/rules.mk
diff --git a/examples/dual/host_info_to_device_cdc/only.txt b/examples/dual/host_info_to_device_cdc/only.txt
new file mode 100644
index 000000000..cfc87eb4e
--- /dev/null
+++ b/examples/dual/host_info_to_device_cdc/only.txt
@@ -0,0 +1,6 @@
+board:mimxrt1060_evk
+board:mimxrt1064_evk
+board:mcb1800
+mcu:RP2040
+mcu:ra6m5
+mcu:MAX3421
diff --git a/examples/dual/host_info_to_device_cdc/src/main.c b/examples/dual/host_info_to_device_cdc/src/main.c
new file mode 100644
index 000000000..5be531098
--- /dev/null
+++ b/examples/dual/host_info_to_device_cdc/src/main.c
@@ -0,0 +1,285 @@
+/*
+ * 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 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"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+// Language ID: English
+#define LANGUAGE_ID 0x0409
+
+/* 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;
+
+static bool is_print[CFG_TUH_DEVICE_MAX+1] = { 0 };
+
+static void print_utf16(uint16_t *temp_buf, size_t buf_len);
+void led_blinking_task(void);
+void cdc_task(void);
+
+/*------------- MAIN -------------*/
+int main(void) {
+  board_init();
+
+  printf("TinyUSB Host Information -> Device CDC Example\r\n");
+
+  // init device and host stack on configured roothub port
+  tud_init(BOARD_TUD_RHPORT);
+  tuh_init(BOARD_TUH_RHPORT);
+
+  if (board_init_after_tusb) {
+    board_init_after_tusb();
+  }
+
+  while (1) {
+    tud_task(); // tinyusb device task
+    tuh_task(); // tinyusb host task
+    cdc_task();
+    led_blinking_task();
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------+
+// Device CDC
+//--------------------------------------------------------------------+
+
+// 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 = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
+}
+
+#if 1
+#define cdc_printf(...)                          \
+  do {                                           \
+    char _tempbuf[256];                          \
+    int count = sprintf(_tempbuf, __VA_ARGS__);  \
+    tud_cdc_write(_tempbuf, (uint32_t) count);   \
+    tud_cdc_write_flush();                       \
+    tud_task();                                  \
+  } while(0)
+#endif
+
+//#define cdc_printf printf
+
+void print_device_info(uint8_t daddr) {
+  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) {
+    tud_cdc_write_str("Failed to get device descriptor\r\n");
+    return;
+  }
+
+  cdc_printf("Device %u: ID %04x:%04x\r\n", daddr, desc_device.idVendor, desc_device.idProduct);
+  cdc_printf("Device Descriptor:\r\n");
+  cdc_printf("  bLength             %u\r\n"     , desc_device.bLength);
+  cdc_printf("  bDescriptorType     %u\r\n"     , desc_device.bDescriptorType);
+  cdc_printf("  bcdUSB              %04x\r\n"   , desc_device.bcdUSB);
+  cdc_printf("  bDeviceClass        %u\r\n"     , desc_device.bDeviceClass);
+  cdc_printf("  bDeviceSubClass     %u\r\n"     , desc_device.bDeviceSubClass);
+  cdc_printf("  bDeviceProtocol     %u\r\n"     , desc_device.bDeviceProtocol);
+  cdc_printf("  bMaxPacketSize0     %u\r\n"     , desc_device.bMaxPacketSize0);
+  cdc_printf("  idVendor            0x%04x\r\n" , desc_device.idVendor);
+  cdc_printf("  idProduct           0x%04x\r\n" , desc_device.idProduct);
+  cdc_printf("  bcdDevice           %04x\r\n"   , desc_device.bcdDevice);
+
+  // Get String descriptor using Sync API
+  uint16_t buf[128];
+
+  cdc_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));
+  }
+  tud_cdc_write_str("\r\n");
+
+  cdc_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));
+  }
+  tud_cdc_write_str("\r\n");
+
+  cdc_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));
+  }
+  tud_cdc_write_str("\r\n");
+
+  cdc_printf("  bNumConfigurations  %u\r\n"     , desc_device.bNumConfigurations);
+}
+
+void cdc_task(void) {
+  if (tud_cdc_connected()) {
+    for (uint8_t daddr = 1; daddr <= CFG_TUH_DEVICE_MAX; daddr++) {
+      if (tuh_mounted(daddr)) {
+        if (is_print[daddr]) {
+          is_print[daddr] = false;
+          print_device_info(daddr);
+          tud_cdc_write_flush();
+        }
+      }
+    }
+  }
+}
+
+//--------------------------------------------------------------------+
+// Host Get device information
+//--------------------------------------------------------------------+
+void tuh_mount_cb(uint8_t daddr) {
+  printf("mounted device %u\r\n", daddr);
+  is_print[daddr] = true;
+}
+
+void tuh_umount_cb(uint8_t daddr) {
+  printf("unmounted device %u\r\n", daddr);
+  is_print[daddr] = false;
+}
+
+//--------------------------------------------------------------------+
+// 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
+}
+
+//--------------------------------------------------------------------+
+// 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';
+
+  tud_cdc_write(temp_buf, utf8_len);
+  tud_cdc_write_flush();
+  tud_task();
+}
diff --git a/examples/dual/host_info_to_device_cdc/src/tusb_config.h b/examples/dual/host_info_to_device_cdc/src/tusb_config.h
new file mode 100644
index 000000000..bb47fbf4a
--- /dev/null
+++ b/examples/dual/host_info_to_device_cdc/src/tusb_config.h
@@ -0,0 +1,143 @@
+/*
+ * 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
+//--------------------------------------------------------------------+
+
+// RHPort number used for device can be defined by board.mk, default to port 0
+#ifndef BOARD_TUD_RHPORT
+#define BOARD_TUD_RHPORT      0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+#ifndef BOARD_TUD_MAX_SPEED
+#define BOARD_TUD_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
+#endif
+
+// RHPort number used for host can be defined by board.mk, default to port 1
+#ifndef BOARD_TUH_RHPORT
+#define BOARD_TUH_RHPORT      1
+#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 Device stack, Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUD_ENABLED       1
+#define CFG_TUD_MAX_SPEED     BOARD_TUD_MAX_SPEED
+
+// Enable Host stack, Default is max speed that hardware controller could support with on-chip PHY
+#define CFG_TUH_ENABLED       1
+#define CFG_TUH_MAX_SPEED     BOARD_TUH_MAX_SPEED
+
+#if CFG_TUSB_MCU == OPT_MCU_RP2040
+// Use pico-pio-usb as host controller for raspberry rp2040
+#define CFG_TUH_RPI_PIO_USB   1
+#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_TUD_MEM_SECTION
+#define CFG_TUD_MEM_SECTION
+#endif
+
+#ifndef CFG_TUD_MEM_ALIGN
+#define CFG_TUD_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
+
+// 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
+
+#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
+
+#define CFG_TUH_HUB                 1
+// max device support (excluding hub device)
+#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif
diff --git a/examples/dual/host_info_to_device_cdc/src/usb_descriptors.c b/examples/dual/host_info_to_device_cdc/src/usb_descriptors.c
new file mode 100644
index 000000000..9d57737fb
--- /dev/null
+++ b/examples/dual/host_info_to_device_cdc/src/usb_descriptors.c
@@ -0,0 +1,268 @@
+/*
+ * 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 "bsp/board_api.h"
+#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_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
+//--------------------------------------------------------------------+
+
+// String Descriptor Index
+enum {
+  STRID_LANGID = 0,
+  STRID_MANUFACTURER,
+  STRID_PRODUCT,
+  STRID_SERIAL,
+};
+
+// 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
+};
+
+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) {
+  (void) langid;
+  size_t chr_count;
+
+  switch (index) {
+    case STRID_LANGID:
+      memcpy(&_desc_str[1], string_desc_arr[0], 2);
+      chr_count = 1;
+      break;
+
+    case STRID_SERIAL:
+      chr_count = board_usb_get_serial(_desc_str + 1, 32);
+      break;
+
+    default:
+      // 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 = 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;
+
+      // Convert ASCII string into UTF-16
+      for (size_t i = 0; i < chr_count; i++) {
+        _desc_str[1 + i] = str[i];
+      }
+      break;
+  }
+
+  // first byte is length (including header), second byte is string type
+  _desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
+
+  return _desc_str;
+}
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..18beea663
--- /dev/null
+++ b/examples/host/device_info/src/main.c
@@ -0,0 +1,210 @@
+/*
+ * 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 uart/rtt (logger) 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..2e9731eaf
--- /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
diff --git a/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.mk b/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.mk
index 70e65333c..e594f42a7 100644
--- a/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.mk
+++ b/hw/bsp/ch32v10x/boards/ch32v103r_r1_1v0/board.mk
@@ -1,5 +1,5 @@
 CFLAGS += -DCFG_EXAMPLE_MSC_DUAL_READONLY
 
 LDFLAGS += \
-  -Wl,--defsym=__flash_size=64K \
-  -Wl,--defsym=__ram_size=20K \
+  -Wl,--defsym=__FLASH_SIZE=64K \
+  -Wl,--defsym=__RAM_SIZE=20K \
diff --git a/hw/bsp/ch32v10x/family.cmake b/hw/bsp/ch32v10x/family.cmake
index b0d8241d3..c0af0ef44 100644
--- a/hw/bsp/ch32v10x/family.cmake
+++ b/hw/bsp/ch32v10x/family.cmake
@@ -59,8 +59,8 @@ function(add_board_target BOARD_TARGET)
       )
     target_link_options(${BOARD_TARGET} PUBLIC
       "LINKER:--script=${LD_FILE_GNU}"
-      -Wl,--defsym=__flash_size=${LD_FLASH_SIZE}
-      -Wl,--defsym=__ram_size=${LD_RAM_SIZE}
+      -Wl,--defsym=__FLASH_SIZE=${LD_FLASH_SIZE}
+      -Wl,--defsym=__RAM_SIZE=${LD_RAM_SIZE}
       -nostartfiles
       --specs=nosys.specs --specs=nano.specs
       )
diff --git a/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.mk b/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.mk
deleted file mode 100644
index 7d7462312..000000000
--- a/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.mk
+++ /dev/null
@@ -1,7 +0,0 @@
-MCU_VARIANT = D6
-
-CFLAGS += -DCFG_EXAMPLE_MSC_DUAL_READONLY
-
-LDFLAGS += \
-  -Wl,--defsym=__flash_size=64K \
-  -Wl,--defsym=__ram_size=20K \
diff --git a/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.cmake b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.cmake
index 31b6b716e..3dd87d3de 100644
--- a/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.cmake
+++ b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.cmake
@@ -7,6 +7,7 @@ set(LD_RAM_SIZE 20K)
 
 function(update_board TARGET)
   target_compile_definitions(${TARGET} PUBLIC
+    SYSCLK_FREQ_144MHz_HSE=144000000
     CFG_EXAMPLE_MSC_DUAL_READONLY
     )
 endfunction()
diff --git a/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.h b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.h
index 3ed2aef04..64eaf931e 100644
--- a/hw/bsp/ch32v20x/boards/ch32v203_r0_1v0/board.h
+++ b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.h
@@ -9,6 +9,11 @@ extern "C" {
 #define LED_PIN        GPIO_Pin_15
 #define LED_STATE_ON   0
 
+#define UART_DEV        USART1
+#define UART_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE)
+#define UART_TX_PIN     GPIO_Pin_9
+#define UART_RX_PIN     GPIO_Pin_10
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.mk b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.mk
new file mode 100644
index 000000000..7d5894629
--- /dev/null
+++ b/hw/bsp/ch32v20x/boards/ch32v203c_r0_1v0/board.mk
@@ -0,0 +1,9 @@
+MCU_VARIANT = D6
+
+CFLAGS += \
+  -DSYSCLK_FREQ_144MHz_HSE=144000000 \
+  -DCFG_EXAMPLE_MSC_DUAL_READONLY \
+
+LDFLAGS += \
+  -Wl,--defsym=__FLASH_SIZE=64K \
+  -Wl,--defsym=__RAM_SIZE=20K \
diff --git a/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.cmake b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.cmake
new file mode 100644
index 000000000..6e5305212
--- /dev/null
+++ b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.cmake
@@ -0,0 +1,11 @@
+set(MCU_VARIANT D6)
+
+set(LD_FLASH_SIZE 32K)
+set(LD_RAM_SIZE 10K)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    SYSCLK_FREQ_144MHz_HSI=144000000
+    CFG_EXAMPLE_MSC_DUAL_READONLY
+    )
+endfunction()
diff --git a/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.h b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.h
new file mode 100644
index 000000000..d6c3a64c8
--- /dev/null
+++ b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.h
@@ -0,0 +1,21 @@
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LED_PORT       GPIOA
+#define LED_PIN        GPIO_Pin_0
+#define LED_STATE_ON   1
+
+#define UART_DEV        USART2
+#define UART_CLOCK_EN() RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE)
+#define UART_TX_PIN     GPIO_Pin_2
+#define UART_RX_PIN     GPIO_Pin_3
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.mk b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.mk
new file mode 100644
index 000000000..e5e4d63ba
--- /dev/null
+++ b/hw/bsp/ch32v20x/boards/ch32v203g_r0_1v0/board.mk
@@ -0,0 +1,9 @@
+MCU_VARIANT = D6
+
+CFLAGS += \
+  -DSYSCLK_FREQ_144MHz_HSI=144000000 \
+  -DCFG_EXAMPLE_MSC_DUAL_READONLY \
+
+LDFLAGS += \
+  -Wl,--defsym=__FLASH_SIZE=32K \
+  -Wl,--defsym=__RAM_SIZE=10K \
diff --git a/hw/bsp/ch32v20x/boards/nanoch32v203/board.cmake b/hw/bsp/ch32v20x/boards/nanoch32v203/board.cmake
index 8d3e0326e..f8dc862a7 100644
--- a/hw/bsp/ch32v20x/boards/nanoch32v203/board.cmake
+++ b/hw/bsp/ch32v20x/boards/nanoch32v203/board.cmake
@@ -5,6 +5,7 @@ set(LD_RAM_SIZE 20K)
 
 function(update_board TARGET)
   target_compile_definitions(${TARGET} PUBLIC
+    SYSCLK_FREQ_144MHz_HSE=144000000
     CFG_EXAMPLE_MSC_DUAL_READONLY
     )
 endfunction()
diff --git a/hw/bsp/ch32v20x/boards/nanoch32v203/board.h b/hw/bsp/ch32v20x/boards/nanoch32v203/board.h
index c8d28d90f..64eaf931e 100644
--- a/hw/bsp/ch32v20x/boards/nanoch32v203/board.h
+++ b/hw/bsp/ch32v20x/boards/nanoch32v203/board.h
@@ -8,7 +8,11 @@ extern "C" {
 #define LED_PORT       GPIOA
 #define LED_PIN        GPIO_Pin_15
 #define LED_STATE_ON   0
-#define LED_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE)
+
+#define UART_DEV        USART1
+#define UART_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE)
+#define UART_TX_PIN     GPIO_Pin_9
+#define UART_RX_PIN     GPIO_Pin_10
 
 #ifdef __cplusplus
 }
diff --git a/hw/bsp/ch32v20x/boards/nanoch32v203/board.mk b/hw/bsp/ch32v20x/boards/nanoch32v203/board.mk
index 7d7462312..7d5894629 100644
--- a/hw/bsp/ch32v20x/boards/nanoch32v203/board.mk
+++ b/hw/bsp/ch32v20x/boards/nanoch32v203/board.mk
@@ -1,7 +1,9 @@
 MCU_VARIANT = D6
 
-CFLAGS += -DCFG_EXAMPLE_MSC_DUAL_READONLY
+CFLAGS += \
+  -DSYSCLK_FREQ_144MHz_HSE=144000000 \
+  -DCFG_EXAMPLE_MSC_DUAL_READONLY \
 
 LDFLAGS += \
-  -Wl,--defsym=__flash_size=64K \
-  -Wl,--defsym=__ram_size=20K \
+  -Wl,--defsym=__FLASH_SIZE=64K \
+  -Wl,--defsym=__RAM_SIZE=20K \
diff --git a/hw/bsp/ch32v20x/family.c b/hw/bsp/ch32v20x/family.c
index 8575f5699..ea98a5e19 100644
--- a/hw/bsp/ch32v20x/family.c
+++ b/hw/bsp/ch32v20x/family.c
@@ -96,28 +96,17 @@ void board_init(void) {
 
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
 
-  uint8_t usb_div;
-  switch (SystemCoreClock) {
-    case 48000000: usb_div = RCC_USBCLKSource_PLLCLK_Div1; break;
-    case 96000000: usb_div = RCC_USBCLKSource_PLLCLK_Div2; break;
-    case 144000000: usb_div = RCC_USBCLKSource_PLLCLK_Div3; break;
-    default: TU_ASSERT(0,); break;
-  }
-  RCC_USBCLKConfig(usb_div);
-  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);  // FSDEV
-  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE); // USB FS
-
   GPIO_InitTypeDef GPIO_InitStructure = {
     .GPIO_Pin = LED_PIN,
     .GPIO_Mode = GPIO_Mode_Out_OD,
-    .GPIO_Speed = GPIO_Speed_50MHz,
+    .GPIO_Speed = GPIO_Speed_10MHz,
   };
   GPIO_Init(LED_PORT, &GPIO_InitStructure);
 
-  // UART TX is PA9
-  RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
+#ifdef UART_DEV
+  UART_CLOCK_EN();
   GPIO_InitTypeDef usart_init = {
-    .GPIO_Pin = GPIO_Pin_9,
+    .GPIO_Pin = UART_TX_PIN,
     .GPIO_Speed = GPIO_Speed_50MHz,
     .GPIO_Mode = GPIO_Mode_AF_PP,
   };
@@ -131,11 +120,23 @@ void board_init(void) {
     .USART_Mode = USART_Mode_Tx,
     .USART_HardwareFlowControl = USART_HardwareFlowControl_None,
   };
-  USART_Init(USART1, &usart);
-  USART_Cmd(USART1, ENABLE);
+  USART_Init(UART_DEV, &usart);
+  USART_Cmd(UART_DEV, ENABLE);
+#endif
+
+  // USB init
+  uint8_t usb_div;
+  switch (SystemCoreClock) {
+    case 48000000: usb_div = RCC_USBCLKSource_PLLCLK_Div1; break;
+    case 96000000: usb_div = RCC_USBCLKSource_PLLCLK_Div2; break;
+    case 144000000: usb_div = RCC_USBCLKSource_PLLCLK_Div3; break;
+    default: TU_ASSERT(0,); break;
+  }
+  RCC_USBCLKConfig(usb_div);
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);  // FSDEV
+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE); // USB FS
 
   __enable_irq();
-  board_delay(2);
 }
 
 void board_led_write(bool state) {
@@ -153,11 +154,15 @@ int board_uart_read(uint8_t *buf, int len) {
 }
 
 int board_uart_write(void const *buf, int len) {
+#ifdef UART_DEV
   const char *bufc = (const char *) buf;
   for (int i = 0; i < len; i++) {
-    while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
-    USART_SendData(USART1, *bufc++);
+    while (USART_GetFlagStatus(UART_DEV, USART_FLAG_TC) == RESET);
+    USART_SendData(UART_DEV, *bufc++);
   }
+#else
+  (void) buf; (void) len;
+#endif
 
   return len;
 }
diff --git a/hw/bsp/ch32v20x/family.cmake b/hw/bsp/ch32v20x/family.cmake
index 28fd13697..faa79ed66 100644
--- a/hw/bsp/ch32v20x/family.cmake
+++ b/hw/bsp/ch32v20x/family.cmake
@@ -41,6 +41,7 @@ function(add_board_target BOARD_TARGET)
 
   add_library(${BOARD_TARGET} STATIC
     ${SDK_SRC_DIR}/Core/core_riscv.c
+    ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_flash.c
     ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_gpio.c
     ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_misc.c
     ${SDK_SRC_DIR}/Peripheral/src/${CH32_FAMILY}_rcc.c
@@ -76,14 +77,14 @@ function(add_board_target BOARD_TARGET)
       -mcmodel=medany
       )
     target_link_options(${BOARD_TARGET} PUBLIC
-      "LINKER:--script=${LD_FILE_GNU}"
-      -Wl,--defsym=__flash_size=${LD_FLASH_SIZE}
-      -Wl,--defsym=__ram_size=${LD_RAM_SIZE}
       -nostartfiles
       --specs=nosys.specs --specs=nano.specs
+      -Wl,--defsym=__FLASH_SIZE=${LD_FLASH_SIZE}
+      -Wl,--defsym=__RAM_SIZE=${LD_RAM_SIZE}
+      "LINKER:--script=${LD_FILE_GNU}"
       )
   elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
-    message(FATAL_ERROR "Clang is not supported for MSP432E4")
+    message(FATAL_ERROR "Clang is not supported for CH32v")
   elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
     target_link_options(${BOARD_TARGET} PUBLIC
       "LINKER:--config=${LD_FILE_IAR}"
diff --git a/hw/bsp/ch32v20x/linker/ch32v20x.ld b/hw/bsp/ch32v20x/linker/ch32v20x.ld
index cd5c8dc17..f84808b0d 100644
--- a/hw/bsp/ch32v20x/linker/ch32v20x.ld
+++ b/hw/bsp/ch32v20x/linker/ch32v20x.ld
@@ -1,17 +1,16 @@
 /* Define default values if not already defined */
-__FLASH_SIZE = DEFINED(__flash_size) ? __flash_size : 64K;
-__RAM_SIZE = DEFINED(__ram_size) ? __ram_size : 20K;
+__flash_size = DEFINED(__FLASH_SIZE) ? __FLASH_SIZE : 64K;
+__ram_size = DEFINED(__RAM_SIZE) ? __RAM_SIZE : 20K;
+__stack_size = DEFINED(__STACK_SIZE) ? __STACK_SIZE : 2048;
 
 MEMORY
 {
-	FLASH (rx) : ORIGIN = 0x00000000, LENGTH = __FLASH_SIZE
-	RAM (xrw) : ORIGIN = 0x20000000, LENGTH = __RAM_SIZE
+	FLASH (rx) : ORIGIN = 0x00000000, LENGTH = __flash_size
+	RAM (xrw) : ORIGIN = 0x20000000, LENGTH = __ram_size
 }
 
 ENTRY( _start )
 
-__stack_size = 2048;
-
 PROVIDE( _stack_size = __stack_size );
 
 SECTIONS
diff --git a/hw/bsp/ch32v20x/system_ch32v20x.c b/hw/bsp/ch32v20x/system_ch32v20x.c
index bdc0d498f..435feae1b 100644
--- a/hw/bsp/ch32v20x/system_ch32v20x.c
+++ b/hw/bsp/ch32v20x/system_ch32v20x.c
@@ -24,7 +24,7 @@
 //#define SYSCLK_FREQ_72MHz_HSE  72000000
 // #define SYSCLK_FREQ_96MHz_HSE  96000000
 //#define SYSCLK_FREQ_120MHz_HSE  120000000
-#define SYSCLK_FREQ_144MHz_HSE  144000000
+//#define SYSCLK_FREQ_144MHz_HSE  144000000
 //#define SYSCLK_FREQ_HSI    HSI_VALUE
 //#define SYSCLK_FREQ_48MHz_HSI  48000000
 //#define SYSCLK_FREQ_56MHz_HSI  56000000
diff --git a/hw/bsp/family_support.cmake b/hw/bsp/family_support.cmake
index 94d55f04a..9f2e34691 100644
--- a/hw/bsp/family_support.cmake
+++ b/hw/bsp/family_support.cmake
@@ -140,7 +140,6 @@ function(family_filter RESULT DIR)
   endif()
 endfunction()
 
-
 function(family_add_subdirectory DIR)
   family_filter(SHOULD_ADD "${DIR}")
   if (SHOULD_ADD)
@@ -148,13 +147,11 @@ function(family_add_subdirectory DIR)
   endif()
 endfunction()
 
-
 function(family_get_project_name OUTPUT_NAME DIR)
   get_filename_component(SHORT_NAME ${DIR} NAME)
   set(${OUTPUT_NAME} ${TINYUSB_FAMILY_PROJECT_NAME_PREFIX}${SHORT_NAME} PARENT_SCOPE)
 endfunction()
 
-
 function(family_initialize_project PROJECT DIR)
   # set output suffix to .elf (skip espressif and rp2040)
   if(NOT FAMILY STREQUAL "espressif" AND NOT FAMILY STREQUAL "rp2040")
@@ -168,7 +165,6 @@ function(family_initialize_project PROJECT DIR)
   endif()
 endfunction()
 
-
 #-------------------------------------------------------------
 # Common Target Configure
 # Most families use these settings except rp2040 and espressif
@@ -194,7 +190,6 @@ function(family_add_rtos TARGET RTOS)
   endif ()
 endfunction()
 
-
 # Add common configuration to example
 function(family_configure_common TARGET RTOS)
   family_add_rtos(${TARGET} ${RTOS})
@@ -205,14 +200,11 @@ function(family_configure_common TARGET RTOS)
     BOARD_${BOARD_UPPER}
   )
 
-  # run size after build
-  find_program(SIZE_EXE ${CMAKE_SIZE})
-  if(NOT ${SIZE_EXE} STREQUAL SIZE_EXE-NOTFOUND)
-    add_custom_command(TARGET ${TARGET} POST_BUILD
-      COMMAND ${SIZE_EXE} $<TARGET_FILE:${TARGET}>
-      )
-  endif ()
-  # Add warnings flags
+  # compile define from command line
+  if(DEFINED CFLAGS_CLI)
+    target_compile_options(${TARGET} PUBLIC ${CFLAGS_CLI})
+  endif()
+
   target_compile_options(${TARGET} PUBLIC ${WARNING_FLAGS_${CMAKE_C_COMPILER_ID}})
 
   # Generate linker map file
@@ -235,7 +227,6 @@ function(family_configure_common TARGET RTOS)
   # LOGGER option
   if (DEFINED LOGGER)
     target_compile_definitions(${TARGET} PUBLIC LOGGER_${LOGGER})
-
     # Add segger rtt to example
     if(LOGGER STREQUAL "RTT" OR LOGGER STREQUAL "rtt")
       if (NOT TARGET segger_rtt)
@@ -246,8 +237,15 @@ function(family_configure_common TARGET RTOS)
       target_link_libraries(${TARGET} PUBLIC segger_rtt)
     endif ()
   endif ()
-endfunction()
 
+  # run size after build
+  find_program(SIZE_EXE ${CMAKE_SIZE})
+  if(NOT ${SIZE_EXE} STREQUAL SIZE_EXE-NOTFOUND)
+    add_custom_command(TARGET ${TARGET} POST_BUILD
+      COMMAND ${SIZE_EXE} $<TARGET_FILE:${TARGET}>
+      )
+  endif ()
+endfunction()
 
 # Add tinyusb to example
 function(family_add_tinyusb TARGET OPT_MCU RTOS)
@@ -289,7 +287,6 @@ function(family_add_tinyusb TARGET OPT_MCU RTOS)
 
 endfunction()
 
-
 # Add bin/hex output
 function(family_add_bin_hex TARGET)
   add_custom_command(TARGET ${TARGET} POST_BUILD
diff --git a/hw/bsp/rp2040/family.cmake b/hw/bsp/rp2040/family.cmake
index b41d7fbea..c81390b28 100644
--- a/hw/bsp/rp2040/family.cmake
+++ b/hw/bsp/rp2040/family.cmake
@@ -175,6 +175,11 @@ function(family_configure_target TARGET RTOS)
 	# export RTOS_SUFFIX to parent scope
 	set(RTOS_SUFFIX ${RTOS_SUFFIX} PARENT_SCOPE)
 
+	# compile define from command line
+	if(DEFINED CFLAGS_CLI)
+		target_compile_options(${TARGET} PUBLIC ${CFLAGS_CLI})
+	endif()
+
 	pico_add_extra_outputs(${TARGET})
 	pico_enable_stdio_uart(${TARGET} 1)
 	target_link_libraries(${TARGET} PUBLIC pico_stdlib tinyusb_board${RTOS_SUFFIX} tinyusb_additions)
diff --git a/src/portable/nordic/nrf5x/dcd_nrf5x.c b/src/portable/nordic/nrf5x/dcd_nrf5x.c
index abce35245..1cc5c1836 100644
--- a/src/portable/nordic/nrf5x/dcd_nrf5x.c
+++ b/src/portable/nordic/nrf5x/dcd_nrf5x.c
@@ -907,9 +907,9 @@ void tusb_hal_nrf_power_event(uint32_t event) {
     USB_EVT_READY = 2
   };
 
-#if CFG_TUSB_DEBUG >= 2
+#if CFG_TUSB_DEBUG >= 3
   const char* const power_evt_str[] = {"Detected", "Removed", "Ready"};
-  TU_LOG(2, "Power USB event: %s\r\n", power_evt_str[event]);
+  TU_LOG(3, "Power USB event: %s\r\n", power_evt_str[event]);
 #endif
 
   switch (event) {
diff --git a/src/portable/nxp/khci/dcd_khci.c b/src/portable/nxp/khci/dcd_khci.c
index dc71117b3..ef61146aa 100644
--- a/src/portable/nxp/khci/dcd_khci.c
+++ b/src/portable/nxp/khci/dcd_khci.c
@@ -540,7 +540,7 @@ void dcd_int_handler(uint8_t rhport)
   }
 
   if (is & USB_ISTAT_SLEEP_MASK) {
-    // TU_LOG2("Suspend: "); TU_LOG2_HEX(is);
+    // TU_LOG3("Suspend: "); TU_LOG2_HEX(is);
 
     // Note Host usually has extra delay after bus reset (without SOF), which could falsely
     // detected as Sleep event. Though usbd has debouncing logic so we are good