Merge branch 'master' into zhangslice-master

56 files changed, 1426 insertions, 280 deletions

diff --git a/examples/device/audio_4_channel_mic/src/usb_descriptors.c b/examples/device/audio_4_channel_mic/src/usb_descriptors.c
index 93ec6e9f7..018919bf3 100644
--- a/examples/device/audio_4_channel_mic/src/usb_descriptors.c
+++ b/examples/device/audio_4_channel_mic/src/usb_descriptors.c
@@ -92,7 +92,7 @@ enum
 uint8_t const desc_configuration[] =
 {
     // Interface count, string index, total length, attribute, power in mA
-    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
     // Interface number, string index, EP Out & EP In address, EP size
     TUD_AUDIO_MIC_FOUR_CH_DESCRIPTOR(/*_itfnum*/ ITF_NUM_AUDIO_CONTROL, /*_stridx*/ 0, /*_nBytesPerSample*/ CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX, /*_nBitsUsedPerSample*/ CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX*8, /*_epin*/ 0x80 | EPNUM_AUDIO, /*_epsize*/ CFG_TUD_AUDIO_EP_SZ_IN)
diff --git a/examples/device/audio_test/src/usb_descriptors.c b/examples/device/audio_test/src/usb_descriptors.c
index 67dd34d2a..a4e9dc8e1 100644
--- a/examples/device/audio_test/src/usb_descriptors.c
+++ b/examples/device/audio_test/src/usb_descriptors.c
@@ -92,7 +92,7 @@ enum
 uint8_t const desc_configuration[] =
 {
     // Interface count, string index, total length, attribute, power in mA
-    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
     // Interface number, string index, EP Out & EP In address, EP size
     TUD_AUDIO_MIC_ONE_CH_DESCRIPTOR(/*_itfnum*/ ITF_NUM_AUDIO_CONTROL, /*_stridx*/ 0, /*_nBytesPerSample*/ CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX, /*_nBitsUsedPerSample*/ CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX*8, /*_epin*/ 0x80 | EPNUM_AUDIO, /*_epsize*/ CFG_TUD_AUDIO_EP_SZ_IN)
diff --git a/examples/device/cdc_dual_ports/src/tusb_config.h b/examples/device/cdc_dual_ports/src/tusb_config.h
index c7e87bf67..ff8535d1a 100644
--- a/examples/device/cdc_dual_ports/src/tusb_config.h
+++ b/examples/device/cdc_dual_ports/src/tusb_config.h
@@ -48,7 +48,7 @@
 // Default to Highspeed for MCU with internal HighSpeed PHY (can be port specific), otherwise FullSpeed
 #ifndef BOARD_DEVICE_RHPORT_SPEED
   #if (CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX || \
-       CFG_TUSB_MCU == OPT_MCU_NUC505  || CFG_TUSB_MCU == OPT_MCU_CXD56)
+       CFG_TUSB_MCU == OPT_MCU_NUC505  || CFG_TUSB_MCU == OPT_MCU_CXD56 || CFG_TUSB_MCU == OPT_MCU_SAMX7X)
     #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_HIGH_SPEED
   #else
     #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_FULL_SPEED
diff --git a/examples/device/cdc_dual_ports/src/usb_descriptors.c b/examples/device/cdc_dual_ports/src/usb_descriptors.c
index 8e19678e5..aa400d486 100644
--- a/examples/device/cdc_dual_ports/src/usb_descriptors.c
+++ b/examples/device/cdc_dual_ports/src/usb_descriptors.c
@@ -35,6 +35,9 @@
 #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
 //--------------------------------------------------------------------+
@@ -42,7 +45,7 @@ tusb_desc_device_t const desc_device =
 {
     .bLength            = sizeof(tusb_desc_device_t),
     .bDescriptorType    = TUSB_DESC_DEVICE,
-    .bcdUSB             = 0x0200,
+    .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)
@@ -51,7 +54,7 @@ tusb_desc_device_t const desc_device =
     .bDeviceProtocol    = MISC_PROTOCOL_IAD,
     .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-    .idVendor           = 0xCafe,
+    .idVendor           = USB_VID,
     .idProduct          = USB_PID,
     .bcdDevice          = 0x0100,
 
@@ -87,43 +90,98 @@ enum
   // LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number
   // 0 control, 1 In, 2 Bulk, 3 Iso, 4 In etc ...
   #define EPNUM_CDC_0_NOTIF   0x81
-  #define EPNUM_CDC_0_DATA    0x02
+  #define EPNUM_CDC_0_OUT     0x02
+  #define EPNUM_CDC_0_IN      0x82
+
+  #define EPNUM_CDC_1_NOTIF   0x84
+  #define EPNUM_CDC_1_OUT     0x05
+  #define EPNUM_CDC_1_IN      0x85
+
+#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_0_NOTIF   0x81
+  #define EPNUM_CDC_0_OUT     0x02
+  #define EPNUM_CDC_0_IN      0x83
 
   #define EPNUM_CDC_1_NOTIF   0x84
-  #define EPNUM_CDC_1_DATA    0x05
+  #define EPNUM_CDC_1_OUT     0x05
+  #define EPNUM_CDC_1_IN      0x86
+
 #else
   #define EPNUM_CDC_0_NOTIF   0x81
-  #define EPNUM_CDC_0_DATA    0x02
+  #define EPNUM_CDC_0_OUT     0x02
+  #define EPNUM_CDC_0_IN      0x82
 
   #define EPNUM_CDC_1_NOTIF   0x83
-  #define EPNUM_CDC_1_DATA    0x04
+  #define EPNUM_CDC_1_OUT     0x04
+  #define EPNUM_CDC_1_IN      0x84
 #endif
 
 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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // 1st CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_0, 4, EPNUM_CDC_0_NOTIF, 8, EPNUM_CDC_0_DATA, 0x80 | EPNUM_CDC_0_DATA, 64),
+  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_0, 4, EPNUM_CDC_0_NOTIF, 8, EPNUM_CDC_0_OUT, EPNUM_CDC_0_IN, 64),
 
   // 2nd CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_1, 4, EPNUM_CDC_1_NOTIF, 8, EPNUM_CDC_1_DATA, 0x80 | EPNUM_CDC_1_DATA, 64),
+  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_1, 4, EPNUM_CDC_1_NOTIF, 8, EPNUM_CDC_1_OUT, EPNUM_CDC_1_IN, 64),
 };
 
 #if TUD_OPT_HIGH_SPEED
+// Per USB specs: high speed capable device must report device_qualifier and other_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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // 1st CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_0, 4, EPNUM_CDC_0_NOTIF, 8, EPNUM_CDC_0_DATA, 0x80 | EPNUM_CDC_0_DATA, 512),
+  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_0, 4, EPNUM_CDC_0_NOTIF, 8, EPNUM_CDC_0_OUT, EPNUM_CDC_0_IN, 512),
 
   // 2nd CDC: Interface number, string index, EP notification address and size, EP data address (out, in) and size.
-  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_1, 4, EPNUM_CDC_1_NOTIF, 8, EPNUM_CDC_1_DATA, 0x80 | EPNUM_CDC_1_DATA, 512),
+  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_1, 4, EPNUM_CDC_1_NOTIF, 8, EPNUM_CDC_1_OUT, EPNUM_CDC_1_IN, 512),
 };
-#endif
+
+// 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_t),
+  .bDescriptorType    = TUSB_DESC_DEVICE,
+  .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
+  return (tud_speed_get() == TUSB_SPEED_HIGH) ?  desc_fs_configuration : desc_hs_configuration;
+}
+
+#endif // highspeed
 
 // Invoked when received GET CONFIGURATION DESCRIPTOR
 // Application return pointer to descriptor
diff --git a/examples/device/cdc_msc/src/msc_disk.c b/examples/device/cdc_msc/src/msc_disk.c
index 503baace9..cad2602a2 100644
--- a/examples/device/cdc_msc/src/msc_disk.c
+++ b/examples/device/cdc_msc/src/msc_disk.c
@@ -188,18 +188,35 @@ int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buff
 {
   (void) lun;
 
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
   uint8_t const* addr = msc_disk[lba] + offset;
   memcpy(buffer, addr, bufsize);
 
   return bufsize;
 }
 
+bool tud_msc_is_writable_cb (uint8_t lun)
+{
+  (void) lun;
+
+#ifdef CFG_EXAMPLE_MSC_READONLY
+  return false;
+#else
+  return true;
+#endif
+}
+
 // Callback invoked when received WRITE10 command.
 // Process data in buffer to disk's storage and return number of written bytes
 int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t* buffer, uint32_t bufsize)
 {
   (void) lun;
 
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
 #ifndef CFG_EXAMPLE_MSC_READONLY
   uint8_t* addr = msc_disk[lba] + offset;
   memcpy(addr, buffer, bufsize);
@@ -218,7 +235,7 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
   // read10 & write10 has their own callback and MUST not be handled here
 
   void const* response = NULL;
-  uint16_t resplen = 0;
+  int32_t resplen = 0;
 
   // most scsi handled is input
   bool in_xfer = true;
diff --git a/examples/device/cdc_msc/src/tusb_config.h b/examples/device/cdc_msc/src/tusb_config.h
index 9a0262d30..bf6af06bc 100644
--- a/examples/device/cdc_msc/src/tusb_config.h
+++ b/examples/device/cdc_msc/src/tusb_config.h
@@ -48,7 +48,7 @@
 // Default to Highspeed for MCU with internal HighSpeed PHY (can be port specific), otherwise FullSpeed
 #ifndef BOARD_DEVICE_RHPORT_SPEED
   #if (CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX || \
-       CFG_TUSB_MCU == OPT_MCU_NUC505  || CFG_TUSB_MCU == OPT_MCU_CXD56)
+       CFG_TUSB_MCU == OPT_MCU_NUC505  || CFG_TUSB_MCU == OPT_MCU_CXD56 || CFG_TUSB_MCU == OPT_MCU_SAMX7X)
     #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_HIGH_SPEED
   #else
     #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_FULL_SPEED
diff --git a/examples/device/cdc_msc/src/usb_descriptors.c b/examples/device/cdc_msc/src/usb_descriptors.c
index fa4342165..34537b8f0 100644
--- a/examples/device/cdc_msc/src/usb_descriptors.c
+++ b/examples/device/cdc_msc/src/usb_descriptors.c
@@ -35,32 +35,35 @@
 #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             = 0x0200,
+  .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           = 0xCafe,
-    .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
@@ -82,8 +85,6 @@ enum
   ITF_NUM_TOTAL
 };
 
-#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MSC_DESC_LEN)
-
 #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 ...
@@ -94,8 +95,8 @@ enum
   #define EPNUM_MSC_OUT     0x05
   #define EPNUM_MSC_IN      0x85
 
-#elif CFG_TUSB_MCU == OPT_MCU_SAMG
-  // SAMG doesn't support a same endpoint number with different direction IN and OUT
+#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
@@ -126,10 +127,13 @@ enum
 
 #endif
 
+#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MSC_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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  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),
@@ -139,10 +143,13 @@ uint8_t const desc_fs_configuration[] =
 };
 
 #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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  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),
@@ -150,7 +157,54 @@ uint8_t const desc_hs_configuration[] =
   // Interface number, string index, EP Out & EP In address, EP size
   TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC_OUT, EPNUM_MSC_IN, 512),
 };
-#endif
+
+// 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
diff --git a/examples/device/dfu/.skip.MCU_SAMD11 b/examples/device/cdc_msc_freertos/.skip.MCU_GD32VF103
index e69de29bb..e69de29bb 100644
--- a/examples/device/dfu/.skip.MCU_SAMD11
+++ b/examples/device/cdc_msc_freertos/.skip.MCU_GD32VF103
diff --git a/examples/device/cdc_msc_freertos/.skip.MCU_SAMX7X b/examples/device/cdc_msc_freertos/.skip.MCU_SAMX7X
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/examples/device/cdc_msc_freertos/.skip.MCU_SAMX7X
diff --git a/examples/device/cdc_msc_freertos/src/FreeRTOSConfig.h b/examples/device/cdc_msc_freertos/src/FreeRTOSConfig.h
index c9f553f64..4cff6e4c7 100644
--- a/examples/device/cdc_msc_freertos/src/FreeRTOSConfig.h
+++ b/examples/device/cdc_msc_freertos/src/FreeRTOSConfig.h
@@ -155,11 +155,14 @@ extern uint32_t SystemCoreClock;
 //--------------------------------------------------------------------+
 // Interrupt nesting behavior configuration.
 //--------------------------------------------------------------------+
-/* Cortex-M specific definitions. __NVIC_PRIO_BITS is defined in core_cmx.h */
-#ifdef __NVIC_PRIO_BITS
+#if defined(__NVIC_PRIO_BITS)
+  // For Cortex-M specific: __NVIC_PRIO_BITS is defined in core_cmx.h
 	#define configPRIO_BITS       __NVIC_PRIO_BITS
+#elif defined(__ECLIC_INTCTLBITS)
+  // RISC-V Bumblebee core from nuclei
+  #define configPRIO_BITS       __ECLIC_INTCTLBITS
 #else
-  #error "This port requires __NVIC_PRIO_BITS to be defined"
+  #error "FreeRTOS configPRIO_BITS to be defined"
 #endif
 
 /* The lowest interrupt priority that can be used in a call to a "set priority" function. */
diff --git a/examples/device/cdc_msc_freertos/src/freertos_hook.c b/examples/device/cdc_msc_freertos/src/freertos_hook.c
index 273ad46e6..ab885947c 100644
--- a/examples/device/cdc_msc_freertos/src/freertos_hook.c
+++ b/examples/device/cdc_msc_freertos/src/freertos_hook.c
@@ -94,7 +94,7 @@ void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, Stack
   *pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
 }
 
-#if CFG_TUSB_MCU == OPT_MCU_RX63X
+#if CFG_TUSB_MCU == OPT_MCU_RX63X | CFG_TUSB_MCU == OPT_MCU_RX65X
 #include "iodefine.h"
 void vApplicationSetupTimerInterrupt(void)
 {
diff --git a/examples/device/cdc_msc_freertos/src/msc_disk.c b/examples/device/cdc_msc_freertos/src/msc_disk.c
index 5aa7befc9..b9205f0c2 100644
--- a/examples/device/cdc_msc_freertos/src/msc_disk.c
+++ b/examples/device/cdc_msc_freertos/src/msc_disk.c
@@ -178,6 +178,9 @@ int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buff
 {
   (void) lun;
 
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
   uint8_t const* addr = msc_disk[lba] + offset;
   memcpy(buffer, addr, bufsize);
 
@@ -190,6 +193,9 @@ int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t*
 {
   (void) lun;
 
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
 #ifndef CFG_EXAMPLE_MSC_READONLY
   uint8_t* addr = msc_disk[lba] + offset;
   memcpy(addr, buffer, bufsize);
@@ -208,7 +214,7 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
   // read10 & write10 has their own callback and MUST not be handled here
 
   void const* response = NULL;
-  uint16_t resplen = 0;
+  int32_t resplen = 0;
 
   // most scsi handled is input
   bool in_xfer = true;
diff --git a/examples/device/cdc_msc_freertos/src/usb_descriptors.c b/examples/device/cdc_msc_freertos/src/usb_descriptors.c
index 75b5ce7bb..f3ff305f8 100644
--- a/examples/device/cdc_msc_freertos/src/usb_descriptors.c
+++ b/examples/device/cdc_msc_freertos/src/usb_descriptors.c
@@ -35,6 +35,9 @@
 #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
 //--------------------------------------------------------------------+
@@ -42,7 +45,7 @@ tusb_desc_device_t const desc_device =
 {
     .bLength            = sizeof(tusb_desc_device_t),
     .bDescriptorType    = TUSB_DESC_DEVICE,
-    .bcdUSB             = 0x0200,
+    .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)
@@ -52,7 +55,7 @@ tusb_desc_device_t const desc_device =
 
     .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-    .idVendor           = 0xCafe,
+    .idVendor           = USB_VID,
     .idProduct          = USB_PID,
     .bcdDevice          = 0x0100,
 
@@ -82,8 +85,6 @@ enum
   ITF_NUM_TOTAL
 };
 
-#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MSC_DESC_LEN)
-
 #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 ...
@@ -114,10 +115,12 @@ enum
 
 #endif
 
+#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MSC_DESC_LEN)
+
 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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  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),
@@ -127,10 +130,13 @@ uint8_t const desc_fs_configuration[] =
 };
 
 #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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  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),
@@ -138,7 +144,54 @@ uint8_t const desc_hs_configuration[] =
   // Interface number, string index, EP Out & EP In address, EP size
   TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC_OUT, EPNUM_MSC_IN, 512),
 };
-#endif
+
+// 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
diff --git a/examples/device/dfu/src/main.c b/examples/device/dfu/src/main.c
index 1c09066a8..5c8464526 100644
--- a/examples/device/dfu/src/main.c
+++ b/examples/device/dfu/src/main.c
@@ -26,13 +26,15 @@
  /*
   * After device is enumerated in dfu mode run the following commands
   *
-  * To transfer firmware from host to device:
+  * To transfer firmware from host to device (best to test with text file)
   *
-  * $ dfu-util -D [filename]
+  * $ dfu-util -d cafe -a 0 -D [filename]
+  * $ dfu-util -d cafe -a 1 -D [filename]
   *
   * To transfer firmware from device to host:
   *
-  * $ dfu-util -U [filename]
+  * $ dfu-util -d cafe -a 0 -U [filename]
+  * $ dfu-util -d cafe -a 1 -U [filename]
   *
   */
 
@@ -43,22 +45,21 @@
 #include "bsp/board.h"
 #include "tusb.h"
 
-
 //--------------------------------------------------------------------+
 // MACRO CONSTANT TYPEDEF PROTYPES
 //--------------------------------------------------------------------+
-#ifndef DFU_VERBOSE
-#define DFU_VERBOSE 0
-#endif
+const char* upload_image[2]=
+{
+  "Hello world from TinyUSB DFU! - Partition 0",
+  "Hello world from TinyUSB DFU! - Partition 1"
+};
 
 /* Blink pattern
- * - 1000 ms : device should reboot
  * - 250 ms  : device not mounted
  * - 1000 ms : device mounted
  * - 2500 ms : device is suspended
  */
 enum  {
-  BLINK_DFU_MODE = 100,
   BLINK_NOT_MOUNTED = 250,
   BLINK_MOUNTED = 1000,
   BLINK_SUSPENDED = 2500,
@@ -115,58 +116,89 @@ void tud_resume_cb(void)
   blink_interval_ms = BLINK_MOUNTED;
 }
 
-// Invoked on DFU_DETACH request to reboot to the bootloader
-void tud_dfu_runtime_reboot_to_dfu_cb(void)
-{
-  blink_interval_ms = BLINK_DFU_MODE;
-}
-
 //--------------------------------------------------------------------+
-// Class callbacks
+// DFU callbacks
+// Note: alt is used as the partition number, in order to support multiple partitions like FLASH, EEPROM, etc.
 //--------------------------------------------------------------------+
-bool tud_dfu_firmware_valid_check_cb(void)
+
+// Invoked right before tud_dfu_download_cb() (state=DFU_DNBUSY) or tud_dfu_manifest_cb() (state=DFU_MANIFEST)
+// Application return timeout in milliseconds (bwPollTimeout) for the next download/manifest operation.
+// During this period, USB host won't try to communicate with us.
+uint32_t tud_dfu_get_timeout_cb(uint8_t alt, uint8_t state)
 {
-  printf("    Firmware check\r\n");
-  return true;
+  if ( state == DFU_DNBUSY )
+  {
+    // For this example
+    // - Atl0 Flash is fast : 1   ms
+    // - Alt1 EEPROM is slow: 100 ms
+    return (alt == 0) ? 1 : 100;
+  }
+  else if (state == DFU_MANIFEST)
+  {
+    // since we don't buffer entire image and do any flashing in manifest stage
+    return 0;
+  }
+
+  return 0;
 }
 
-void tud_dfu_req_dnload_data_cb(uint16_t wBlockNum, uint8_t* data, uint16_t length)
+// Invoked when received DFU_DNLOAD (wLength>0) following by DFU_GETSTATUS (state=DFU_DNBUSY) requests
+// This callback could be returned before flashing op is complete (async).
+// Once finished flashing, application must call tud_dfu_finish_flashing()
+void tud_dfu_download_cb(uint8_t alt, uint16_t block_num, uint8_t const* data, uint16_t length)
 {
-  (void) data;
-  printf("    Received BlockNum %u of length %u\r\n", wBlockNum, length);
+  (void) alt;
+  (void) block_num;
+
+  //printf("\r\nReceived Alt %u BlockNum %u of length %u\r\n", alt, wBlockNum, length);
 
-#if DFU_VERBOSE
   for(uint16_t i=0; i<length; i++)
   {
-    printf("    [%u][%u]: %x\r\n", wBlockNum, i, (uint8_t)data[i]);
+    printf("%c", data[i]);
   }
-#endif
 
-  tud_dfu_dnload_complete();
+  // flashing op for download complete without error
+  tud_dfu_finish_flashing(DFU_STATUS_OK);
 }
 
-bool tud_dfu_device_data_done_check_cb(void)
+// Invoked when download process is complete, received DFU_DNLOAD (wLength=0) following by DFU_GETSTATUS (state=Manifest)
+// Application can do checksum, or actual flashing if buffered entire image previously.
+// Once finished flashing, application must call tud_dfu_finish_flashing()
+void tud_dfu_manifest_cb(uint8_t alt)
 {
-  printf("    Host said no more data... Returning true\r\n");
-  return true;
-}
+  (void) alt;
+  printf("Download completed, enter manifestation\r\n");
 
-void tud_dfu_abort_cb(void)
-{
-  printf("    Host aborted transfer\r\n");
+  // flashing op for manifest is complete without error
+  // Application can perform checksum, should it fail, use appropriate status such as errVERIFY.
+  tud_dfu_finish_flashing(DFU_STATUS_OK);
 }
 
-#define UPLOAD_SIZE (29)
-const uint8_t upload_test[UPLOAD_SIZE] = "Hello world from TinyUSB DFU!";
-
-uint16_t tud_dfu_req_upload_data_cb(uint16_t block_num, uint8_t* data, uint16_t length)
+// Invoked when received DFU_UPLOAD request
+// Application must populate data with up to length bytes and
+// Return the number of written bytes
+uint16_t tud_dfu_upload_cb(uint8_t alt, uint16_t block_num, uint8_t* data, uint16_t length)
 {
   (void) block_num;
   (void) length;
 
-  memcpy(data, upload_test, UPLOAD_SIZE);
+  uint16_t const xfer_len = (uint16_t) strlen(upload_image[alt]);
+  memcpy(data, upload_image[alt], xfer_len);
 
-  return UPLOAD_SIZE;
+  return xfer_len;
+}
+
+// Invoked when the Host has terminated a download or upload transfer
+void tud_dfu_abort_cb(uint8_t alt)
+{
+  (void) alt;
+  printf("Host aborted transfer\r\n");
+}
+
+// Invoked when a DFU_DETACH request is received
+void tud_dfu_detach_cb(void)
+{
+  printf("Host detach, we should probably reboot\r\n");
 }
 
 //--------------------------------------------------------------------+
diff --git a/examples/device/dfu/src/tusb_config.h b/examples/device/dfu/src/tusb_config.h
index 90e90b2e4..66e357021 100644
--- a/examples/device/dfu/src/tusb_config.h
+++ b/examples/device/dfu/src/tusb_config.h
@@ -76,12 +76,11 @@
 #define CFG_TUD_ENDPOINT0_SIZE    64
 #endif
 
-#define CFG_TUD_DFU_TRANSFER_BUFFER_SIZE    4096
-
 //------------- CLASS -------------//
+#define CFG_TUD_DFU    1
 
-#define CFG_TUD_DFU_RUNTIME 0
-#define CFG_TUD_DFU_MODE    1
+// DFU buffer size, it has to be set to the buffer size used in TUD_DFU_DESCRIPTOR
+#define CFG_TUD_DFU_XFER_BUFSIZE    512
 
 #ifdef __cplusplus
  }
diff --git a/examples/device/dfu/src/usb_descriptors.c b/examples/device/dfu/src/usb_descriptors.c
index 8ad64354b..350334aa5 100644
--- a/examples/device/dfu/src/usb_descriptors.c
+++ b/examples/device/dfu/src/usb_descriptors.c
@@ -81,23 +81,26 @@ uint8_t const * tud_descriptor_device_cb(void)
 // Configuration Descriptor
 //--------------------------------------------------------------------+
 
+// Number of Alternate Interface (each for 1 flash partition)
+#define ALT_COUNT   2
+
 enum
 {
   ITF_NUM_DFU_MODE,
   ITF_NUM_TOTAL
 };
 
-#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_DFU_MODE_DESC_LEN)
+#define CONFIG_TOTAL_LEN    (TUD_CONFIG_DESC_LEN + TUD_DFU_DESC_LEN(ALT_COUNT))
 
-#define FUNC_ATTRS (DFU_FUNC_ATTR_CAN_UPLOAD_BITMASK | DFU_FUNC_ATTR_CAN_DOWNLOAD_BITMASK)
+#define FUNC_ATTRS (DFU_ATTR_CAN_UPLOAD | DFU_ATTR_CAN_DOWNLOAD | DFU_ATTR_MANIFESTATION_TOLERANT)
 
 uint8_t const desc_configuration[] =
 {
   // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
-  // Interface number, string index, attributes, detach timeout, transfer size */
-  TUD_DFU_MODE_DESCRIPTOR(ITF_NUM_DFU_MODE, 0, FUNC_ATTRS, 1000, CFG_TUD_DFU_TRANSFER_BUFFER_SIZE),
+  // Interface number, Alternate count, starting string index, attributes, detach timeout, transfer size
+  TUD_DFU_DESCRIPTOR(ITF_NUM_DFU_MODE, ALT_COUNT, 4, FUNC_ATTRS, 1000, CFG_TUD_DFU_XFER_BUFSIZE),
 };
 
 // Invoked when received GET CONFIGURATION DESCRIPTOR
@@ -120,7 +123,8 @@ char const* string_desc_arr [] =
   "TinyUSB",                     // 1: Manufacturer
   "TinyUSB Device",              // 2: Product
   "123456",                      // 3: Serials, should use chip ID
-  "TinyUSB DFU",                 // 4: DFU
+  "FLASH",                       // 4: DFU Partition 1
+  "EEPROM",                      // 5: DFU Partition 2
 };
 
 static uint16_t _desc_str[32];
diff --git a/examples/device/dfu_runtime/src/usb_descriptors.c b/examples/device/dfu_runtime/src/usb_descriptors.c
index 8b2bd265d..060943289 100644
--- a/examples/device/dfu_runtime/src/usb_descriptors.c
+++ b/examples/device/dfu_runtime/src/usb_descriptors.c
@@ -92,7 +92,7 @@ enum
 uint8_t const desc_configuration[] =
 {
   // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, attributes, detach timeout, transfer size */
   TUD_DFU_RT_DESCRIPTOR(ITF_NUM_DFU_RT, 4, 0x0d, 1000, 4096),
diff --git a/examples/device/dynamic_configuration/src/msc_disk.c b/examples/device/dynamic_configuration/src/msc_disk.c
index 5aa7befc9..b9205f0c2 100644
--- a/examples/device/dynamic_configuration/src/msc_disk.c
+++ b/examples/device/dynamic_configuration/src/msc_disk.c
@@ -178,6 +178,9 @@ int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buff
 {
   (void) lun;
 
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
   uint8_t const* addr = msc_disk[lba] + offset;
   memcpy(buffer, addr, bufsize);
 
@@ -190,6 +193,9 @@ int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t*
 {
   (void) lun;
 
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
 #ifndef CFG_EXAMPLE_MSC_READONLY
   uint8_t* addr = msc_disk[lba] + offset;
   memcpy(addr, buffer, bufsize);
@@ -208,7 +214,7 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
   // read10 & write10 has their own callback and MUST not be handled here
 
   void const* response = NULL;
-  uint16_t resplen = 0;
+  int32_t resplen = 0;
 
   // most scsi handled is input
   bool in_xfer = true;
diff --git a/examples/device/dynamic_configuration/src/usb_descriptors.c b/examples/device/dynamic_configuration/src/usb_descriptors.c
index 9ccb37654..3352972a5 100644
--- a/examples/device/dynamic_configuration/src/usb_descriptors.c
+++ b/examples/device/dynamic_configuration/src/usb_descriptors.c
@@ -160,7 +160,7 @@ enum
 uint8_t const desc_configuration_0[] =
 {
   // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_0_NUM_TOTAL, 0, CONFIG_0_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_0_NUM_TOTAL, 0, CONFIG_0_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, EP notification address and size, EP data address (out, in) and size.
   TUD_CDC_DESCRIPTOR(ITF_0_NUM_CDC, 0, EPNUM_0_CDC_NOTIF, 8, EPNUM_0_CDC_OUT, EPNUM_0_CDC_IN, 64),
@@ -173,7 +173,7 @@ uint8_t const desc_configuration_0[] =
 uint8_t const desc_configuraiton_1[] =
 {
   // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_1_NUM_TOTAL, 0, CONFIG_1_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_1_NUM_TOTAL, 0, CONFIG_1_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, EP Out & EP In address, EP size
   TUD_MSC_DESCRIPTOR(ITF_1_NUM_MSC, 0, EPNUM_1_MSC_OUT, EPNUM_1_MSC_IN, TUD_OPT_HIGH_SPEED ? 512 : 64),
diff --git a/examples/device/hid_boot_interface/CMakeLists.txt b/examples/device/hid_boot_interface/CMakeLists.txt
new file mode 100644
index 000000000..abc4d91da
--- /dev/null
+++ b/examples/device/hid_boot_interface/CMakeLists.txt
@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.5)
+
+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})
+
+# 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
+        ${CMAKE_CURRENT_SOURCE_DIR}/src
+        )
+
+# Configure compilation flags and libraries for the example... see the corresponding function
+# in hw/bsp/FAMILY/family.cmake for details.
+family_configure_device_example(${PROJECT})
\ No newline at end of file
diff --git a/examples/device/hid_boot_interface/Makefile b/examples/device/hid_boot_interface/Makefile
new file mode 100644
index 000000000..138c27846
--- /dev/null
+++ b/examples/device/hid_boot_interface/Makefile
@@ -0,0 +1,15 @@
+include ../../../tools/top.mk
+include ../../make.mk
+
+INC += \
+	src \
+	$(TOP)/hw \
+
+# Example source
+EXAMPLE_SOURCE += \
+	src/main.c \
+	src/usb_descriptors.c
+	
+SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
+
+include ../../rules.mk
diff --git a/examples/device/hid_boot_interface/src/main.c b/examples/device/hid_boot_interface/src/main.c
new file mode 100644
index 000000000..e5e2f6856
--- /dev/null
+++ b/examples/device/hid_boot_interface/src/main.c
@@ -0,0 +1,255 @@
+/* 
+ * 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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bsp/board.h"
+#include "tusb.h"
+#include "usb_descriptors.h"
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF PROTYPES
+//--------------------------------------------------------------------+
+
+/* Blink pattern
+ * - 250 ms  : device not mounted
+ * - 1000 ms : device mounted
+ * - 2500 ms : device is suspended
+ */
+enum  {
+  BLINK_NOT_MOUNTED = 250,
+  BLINK_MOUNTED = 1000,
+  BLINK_SUSPENDED = 2500,
+};
+
+static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
+
+void led_blinking_task(void);
+void hid_task(void);
+
+/*------------- MAIN -------------*/
+int main(void)
+{
+  board_init();
+  tusb_init();
+
+  while (1)
+  {
+    tud_task(); // tinyusb device task
+    led_blinking_task();
+
+    hid_task();
+  }
+
+  return 0;
+}
+
+//--------------------------------------------------------------------+
+// Device callbacks
+//--------------------------------------------------------------------+
+
+// Invoked when device is mounted
+void tud_mount_cb(void)
+{
+  blink_interval_ms = BLINK_MOUNTED;
+}
+
+// Invoked when device is unmounted
+void tud_umount_cb(void)
+{
+  blink_interval_ms = BLINK_NOT_MOUNTED;
+}
+
+// Invoked when usb bus is suspended
+// remote_wakeup_en : if host allow us  to perform remote wakeup
+// Within 7ms, device must draw an average of current less than 2.5 mA from bus
+void tud_suspend_cb(bool remote_wakeup_en)
+{
+  (void) remote_wakeup_en;
+  blink_interval_ms = BLINK_SUSPENDED;
+}
+
+// Invoked when usb bus is resumed
+void tud_resume_cb(void)
+{
+  blink_interval_ms = BLINK_MOUNTED;
+}
+
+//--------------------------------------------------------------------+
+// USB HID
+//--------------------------------------------------------------------+
+
+// Every 10ms, we will sent 1 report for each HID profile (keyboard, mouse etc ..)
+// tud_hid_report_complete_cb() is used to send the next report after previous one is complete
+void hid_task(void)
+{
+  // Poll every 10ms
+  const uint32_t interval_ms = 10;
+  static uint32_t start_ms = 0;
+
+  if ( board_millis() - start_ms < interval_ms) return; // not enough time
+  start_ms += interval_ms;
+
+  uint32_t const btn = board_button_read();
+
+  if ( tud_suspended() && btn )
+  {
+    // Wake up host if we are in suspend mode
+    // and REMOTE_WAKEUP feature is enabled by host
+    tud_remote_wakeup();
+  }
+  else
+  {
+    // keyboard interface
+    if ( tud_hid_n_ready(ITF_NUM_KEYBOARD) )
+    {
+      // used to avoid send multiple consecutive zero report for keyboard
+      static bool has_keyboard_key = false;
+
+      uint8_t const report_id = 0;
+      uint8_t const modifier  = 0;
+
+      if ( btn )
+      {
+        uint8_t keycode[6] = { 0 };
+        keycode[0] = HID_KEY_ARROW_RIGHT;
+
+        tud_hid_n_keyboard_report(ITF_NUM_KEYBOARD, report_id, modifier, keycode);
+        has_keyboard_key = true;
+      }else
+      {
+        // send empty key report if previously has key pressed
+        if (has_keyboard_key) tud_hid_n_keyboard_report(ITF_NUM_KEYBOARD, report_id, modifier, NULL);
+        has_keyboard_key = false;
+      }
+    }
+
+    // mouse interface
+    if ( tud_hid_n_ready(ITF_NUM_MOUSE) )
+    {
+      if ( btn )
+      {
+        uint8_t const report_id   = 0;
+        uint8_t const button_mask = 0;
+        uint8_t const veritical   = 0;
+        uint8_t const horizontal  = 0;
+        int8_t  const delta       = 5;
+
+        tud_hid_n_mouse_report(ITF_NUM_MOUSE, report_id, button_mask, delta, delta, veritical, horizontal);
+      }
+    }
+  }
+}
+
+// Invoked when received SET_PROTOCOL request
+// protocol is either HID_PROTOCOL_BOOT (0) or HID_PROTOCOL_REPORT (1)
+void tud_hid_set_protocol_cb(uint8_t instance, uint8_t protocol)
+{
+  (void) instance;
+  (void) protocol;
+
+  // nothing to do since we use the same compatible boot report for both Boot and Report mode.
+  // TOOD set a indicator for user
+}
+
+// Invoked when sent REPORT successfully to host
+// Application can use this to send the next report
+// Note: For composite reports, report[0] is report ID
+void tud_hid_report_complete_cb(uint8_t instance, uint8_t const* report, uint8_t len)
+{
+  (void) instance;
+  (void) report;
+  (void) len;
+
+  // nothing to do
+}
+
+// Invoked when received GET_REPORT control request
+// Application must fill buffer report's content and return its length.
+// Return zero will cause the stack to STALL request
+uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
+{
+  // TODO not Implemented
+  (void) instance;
+  (void) report_id;
+  (void) report_type;
+  (void) buffer;
+  (void) reqlen;
+
+  return 0;
+}
+
+// Invoked when received SET_REPORT control request or
+// received data on OUT endpoint ( Report ID = 0, Type = 0 )
+void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
+{
+  (void) report_id;
+
+  // keyboard interface
+  if (instance == ITF_NUM_KEYBOARD)
+  {
+    // Set keyboard LED e.g Capslock, Numlock etc...
+    if (report_type == HID_REPORT_TYPE_OUTPUT)
+    {
+      // bufsize should be (at least) 1
+      if ( bufsize < 1 ) return;
+
+      uint8_t const kbd_leds = buffer[0];
+
+      if (kbd_leds & KEYBOARD_LED_CAPSLOCK)
+      {
+        // Capslock On: disable blink, turn led on
+        blink_interval_ms = 0;
+        board_led_write(true);
+      }else
+      {
+        // Caplocks Off: back to normal blink
+        board_led_write(false);
+        blink_interval_ms = BLINK_MOUNTED;
+      }
+    }
+  }
+}
+
+//--------------------------------------------------------------------+
+// BLINKING TASK
+//--------------------------------------------------------------------+
+void led_blinking_task(void)
+{
+  static uint32_t start_ms = 0;
+  static bool led_state = false;
+
+  // blink is disabled
+  if (!blink_interval_ms) return;
+
+  // Blink every interval ms
+  if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
+  start_ms += blink_interval_ms;
+
+  board_led_write(led_state);
+  led_state = 1 - led_state; // toggle
+}
diff --git a/examples/device/hid_boot_interface/src/tusb_config.h b/examples/device/hid_boot_interface/src/tusb_config.h
new file mode 100644
index 000000000..59fb9962c
--- /dev/null
+++ b/examples/device/hid_boot_interface/src/tusb_config.h
@@ -0,0 +1,111 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#ifndef _TUSB_CONFIG_H_
+#define _TUSB_CONFIG_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------
+// COMMON CONFIGURATION
+//--------------------------------------------------------------------
+
+// defined by board.mk
+#ifndef CFG_TUSB_MCU
+  #error CFG_TUSB_MCU must be defined
+#endif
+
+// RHPort number used for device can be defined by board.mk, default to port 0
+#ifndef BOARD_DEVICE_RHPORT_NUM
+  #define BOARD_DEVICE_RHPORT_NUM     0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+// Default to Highspeed for MCU with internal HighSpeed PHY (can be port specific), otherwise FullSpeed
+#ifndef BOARD_DEVICE_RHPORT_SPEED
+  #if (CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX || \
+       CFG_TUSB_MCU == OPT_MCU_NUC505  || CFG_TUSB_MCU == OPT_MCU_CXD56 || CFG_TUSB_MCU == OPT_MCU_SAMX7X)
+    #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_HIGH_SPEED
+  #else
+    #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_FULL_SPEED
+  #endif
+#endif
+
+// Device mode with rhport and speed defined by board.mk
+#if   BOARD_DEVICE_RHPORT_NUM == 0
+  #define CFG_TUSB_RHPORT0_MODE     (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
+#elif BOARD_DEVICE_RHPORT_NUM == 1
+  #define CFG_TUSB_RHPORT1_MODE     (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
+#else
+  #error "Incorrect RHPort configuration"
+#endif
+
+#ifndef CFG_TUSB_OS
+#define CFG_TUSB_OS               OPT_OS_NONE
+#endif
+
+// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
+// #define CFG_TUSB_DEBUG           0
+
+/* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
+ * Tinyusb use follows macros to declare transferring memory so that they can be put
+ * into those specific section.
+ * e.g
+ * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
+ * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
+ */
+#ifndef CFG_TUSB_MEM_SECTION
+#define CFG_TUSB_MEM_SECTION
+#endif
+
+#ifndef CFG_TUSB_MEM_ALIGN
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
+#endif
+
+//--------------------------------------------------------------------
+// DEVICE CONFIGURATION
+//--------------------------------------------------------------------
+
+#ifndef CFG_TUD_ENDPOINT0_SIZE
+#define CFG_TUD_ENDPOINT0_SIZE    64
+#endif
+
+//------------- CLASS -------------//
+#define CFG_TUD_HID               2 // 1 for boot keyboard, 1 for boot mouse
+#define CFG_TUD_CDC               0
+#define CFG_TUD_MSC               0
+#define CFG_TUD_MIDI              0
+#define CFG_TUD_VENDOR            0
+
+// HID buffer size Should be sufficient to hold ID (if any) + Data
+#define CFG_TUD_HID_EP_BUFSIZE    8
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_CONFIG_H_ */
diff --git a/examples/device/hid_boot_interface/src/usb_descriptors.c b/examples/device/hid_boot_interface/src/usb_descriptors.c
new file mode 100644
index 000000000..3fa48d98d
--- /dev/null
+++ b/examples/device/hid_boot_interface/src/usb_descriptors.c
@@ -0,0 +1,180 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#include "tusb.h"
+#include "usb_descriptors.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) )
+
+//--------------------------------------------------------------------+
+// Device Descriptors
+//--------------------------------------------------------------------+
+tusb_desc_device_t const desc_device =
+{
+    .bLength            = sizeof(tusb_desc_device_t),
+    .bDescriptorType    = TUSB_DESC_DEVICE,
+    .bcdUSB             = 0x0200,
+    .bDeviceClass       = 0x00,
+    .bDeviceSubClass    = 0x00,
+    .bDeviceProtocol    = 0x00,
+    .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
+
+    .idVendor           = 0xCafe,
+    .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;
+}
+
+//--------------------------------------------------------------------+
+// HID Report Descriptor
+//--------------------------------------------------------------------+
+
+uint8_t const desc_hid_keyboard_report[] =
+{
+  TUD_HID_REPORT_DESC_KEYBOARD()
+};
+
+uint8_t const desc_hid_mouse_report[] =
+{
+  TUD_HID_REPORT_DESC_MOUSE()
+};
+
+// Invoked when received GET HID REPORT DESCRIPTOR
+// Application return pointer to descriptor
+// Descriptor contents must exist long enough for transfer to complete
+uint8_t const * tud_hid_descriptor_report_cb(uint8_t instance)
+{
+  return (instance == 0) ? desc_hid_keyboard_report : desc_hid_mouse_report;
+}
+
+//--------------------------------------------------------------------+
+// Configuration Descriptor
+//--------------------------------------------------------------------+
+
+#define CONFIG_TOTAL_LEN  (TUD_CONFIG_DESC_LEN + 2*TUD_HID_DESC_LEN)
+
+#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
+  // 1 Interrupt, 2 Bulk, 3 Iso, 4 Interrupt, 5 Bulk etc ...
+  #define EPNUM_KEYBOARD   0x81
+  #define EPNUM_MOUSE      0x84
+#else
+  #define EPNUM_KEYBOARD   0x81
+  #define EPNUM_MOUSE      0x82
+#endif
+
+uint8_t const desc_configuration[] =
+{
+  // Config number, interface count, string index, total length, attribute, power in mA
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+
+  // Interface number, string index, protocol, report descriptor len, EP In address, size & polling interval
+  TUD_HID_DESCRIPTOR(ITF_NUM_KEYBOARD, 0, HID_ITF_PROTOCOL_KEYBOARD, sizeof(desc_hid_keyboard_report), EPNUM_KEYBOARD, CFG_TUD_HID_EP_BUFSIZE, 10),
+
+  // Interface number, string index, protocol, report descriptor len, EP In address, size & polling interval
+  TUD_HID_DESCRIPTOR(ITF_NUM_MOUSE, 0, HID_ITF_PROTOCOL_MOUSE, sizeof(desc_hid_mouse_report), EPNUM_MOUSE, CFG_TUD_HID_EP_BUFSIZE, 10)
+};
+
+// 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
+  return desc_configuration;
+}
+
+//--------------------------------------------------------------------+
+// String Descriptors
+//--------------------------------------------------------------------+
+
+// array of pointer to string descriptors
+char const* string_desc_arr [] =
+{
+  (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
+  "TinyUSB",                     // 1: Manufacturer
+  "TinyUSB Device",              // 2: Product
+  "123456",                      // 3: Serials, should use chip ID
+};
+
+static uint16_t _desc_str[32];
+
+// Invoked when received GET STRING DESCRIPTOR request
+// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
+{
+  (void) langid;
+
+  uint8_t chr_count;
+
+  if ( index == 0)
+  {
+    memcpy(&_desc_str[1], string_desc_arr[0], 2);
+    chr_count = 1;
+  }else
+  {
+    // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+    // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
+
+    if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
+
+    const char* str = string_desc_arr[index];
+
+    // Cap at max char
+    chr_count = strlen(str);
+    if ( chr_count > 31 ) chr_count = 31;
+
+    // Convert ASCII string into UTF-16
+    for(uint8_t i=0; i<chr_count; i++)
+    {
+      _desc_str[1+i] = str[i];
+    }
+  }
+
+  // first byte is length (including header), second byte is string type
+  _desc_str[0] = (TUSB_DESC_STRING << 8 ) | (2*chr_count + 2);
+
+  return _desc_str;
+}
diff --git a/examples/device/hid_boot_interface/src/usb_descriptors.h b/examples/device/hid_boot_interface/src/usb_descriptors.h
new file mode 100644
index 000000000..57cf0e2c0
--- /dev/null
+++ b/examples/device/hid_boot_interface/src/usb_descriptors.h
@@ -0,0 +1,35 @@
+/* 
+ * 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 USB_DESCRIPTORS_H_
+#define USB_DESCRIPTORS_H_
+
+enum
+{
+  ITF_NUM_KEYBOARD,
+  ITF_NUM_MOUSE,
+  ITF_NUM_TOTAL
+};
+
+#endif
diff --git a/examples/device/hid_composite/src/main.c b/examples/device/hid_composite/src/main.c
index 512f6f9d9..fd25e620a 100644
--- a/examples/device/hid_composite/src/main.c
+++ b/examples/device/hid_composite/src/main.c
@@ -223,9 +223,9 @@ void hid_task(void)
 // Invoked when sent REPORT successfully to host
 // Application can use this to send the next report
 // Note: For composite reports, report[0] is report ID
-void tud_hid_report_complete_cb(uint8_t itf, uint8_t const* report, uint8_t len)
+void tud_hid_report_complete_cb(uint8_t instance, uint8_t const* report, uint8_t len)
 {
-  (void) itf;
+  (void) instance;
   (void) len;
 
   uint8_t next_report_id = report[0] + 1;
@@ -239,10 +239,10 @@ void tud_hid_report_complete_cb(uint8_t itf, uint8_t const* report, uint8_t len)
 // Invoked when received GET_REPORT control request
 // Application must fill buffer report's content and return its length.
 // Return zero will cause the stack to STALL request
-uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
+uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
 {
   // TODO not Implemented
-  (void) itf;
+  (void) instance;
   (void) report_id;
   (void) report_type;
   (void) buffer;
@@ -253,14 +253,33 @@ uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t
 
 // Invoked when received SET_REPORT control request or
 // received data on OUT endpoint ( Report ID = 0, Type = 0 )
-void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
+void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
 {
-  // TODO set LED based on CAPLOCK, NUMLOCK etc...
-  (void) itf;
-  (void) report_id;
-  (void) report_type;
-  (void) buffer;
-  (void) bufsize;
+  (void) instance;
+
+  if (report_type == HID_REPORT_TYPE_OUTPUT)
+  {
+    // Set keyboard LED e.g Capslock, Numlock etc...
+    if (report_id == REPORT_ID_KEYBOARD)
+    {
+      // bufsize should be (at least) 1
+      if ( bufsize < 1 ) return;
+
+      uint8_t const kbd_leds = buffer[0];
+
+      if (kbd_leds & KEYBOARD_LED_CAPSLOCK)
+      {
+        // Capslock On: disable blink, turn led on
+        blink_interval_ms = 0;
+        board_led_write(true);
+      }else
+      {
+        // Caplocks Off: back to normal blink
+        board_led_write(false);
+        blink_interval_ms = BLINK_MOUNTED;
+      }
+    }
+  }
 }
 
 //--------------------------------------------------------------------+
@@ -271,6 +290,9 @@ void led_blinking_task(void)
   static uint32_t start_ms = 0;
   static bool led_state = false;
 
+  // blink is disabled
+  if (!blink_interval_ms) return;
+
   // Blink every interval ms
   if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
   start_ms += blink_interval_ms;
diff --git a/examples/device/hid_composite/src/tusb_config.h b/examples/device/hid_composite/src/tusb_config.h
index 3e608ed37..868424e6d 100644
--- a/examples/device/hid_composite/src/tusb_config.h
+++ b/examples/device/hid_composite/src/tusb_config.h
@@ -48,7 +48,7 @@
 // Default to Highspeed for MCU with internal HighSpeed PHY (can be port specific), otherwise FullSpeed
 #ifndef BOARD_DEVICE_RHPORT_SPEED
   #if (CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX || \
-       CFG_TUSB_MCU == OPT_MCU_NUC505  || CFG_TUSB_MCU == OPT_MCU_CXD56)
+       CFG_TUSB_MCU == OPT_MCU_NUC505  || CFG_TUSB_MCU == OPT_MCU_CXD56 || CFG_TUSB_MCU == OPT_MCU_SAMX7X)
     #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_HIGH_SPEED
   #else
     #define BOARD_DEVICE_RHPORT_SPEED   OPT_MODE_FULL_SPEED
diff --git a/examples/device/hid_composite/src/usb_descriptors.c b/examples/device/hid_composite/src/usb_descriptors.c
index 1aff5e68e..e760b20ba 100644
--- a/examples/device/hid_composite/src/usb_descriptors.c
+++ b/examples/device/hid_composite/src/usb_descriptors.c
@@ -36,6 +36,9 @@
 #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
 //--------------------------------------------------------------------+
@@ -43,13 +46,13 @@ tusb_desc_device_t const desc_device =
 {
     .bLength            = sizeof(tusb_desc_device_t),
     .bDescriptorType    = TUSB_DESC_DEVICE,
-    .bcdUSB             = 0x0200,
+    .bcdUSB             = USB_BCD,
     .bDeviceClass       = 0x00,
     .bDeviceSubClass    = 0x00,
     .bDeviceProtocol    = 0x00,
     .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-    .idVendor           = 0xCafe,
+    .idVendor           = USB_VID,
     .idProduct          = USB_PID,
     .bcdDevice          = 0x0100,
 
@@ -82,9 +85,9 @@ uint8_t const desc_hid_report[] =
 // Invoked when received GET HID REPORT DESCRIPTOR
 // Application return pointer to descriptor
 // Descriptor contents must exist long enough for transfer to complete
-uint8_t const * tud_hid_descriptor_report_cb(uint8_t itf)
+uint8_t const * tud_hid_descriptor_report_cb(uint8_t instance)
 {
-  (void) itf;
+  (void) instance;
   return desc_hid_report;
 }
 
@@ -111,12 +114,62 @@ uint8_t const desc_configuration[] =
   TUD_HID_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE, sizeof(desc_hid_report), EPNUM_HID, CFG_TUD_HID_EP_BUFSIZE, 5)
 };
 
+#if TUD_OPT_HIGH_SPEED
+// Per USB specs: high speed capable device must report device_qualifier and other_speed_configuration
+
+// 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       = 0x00,
+  .bDeviceSubClass    = 0x00,
+  .bDeviceProtocol    = 0x00,
+
+  .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
+
+  // other speed config is basically configuration with type = OHER_SPEED_CONFIG
+  memcpy(desc_other_speed_config, desc_configuration, CONFIG_TOTAL_LEN);
+  desc_other_speed_config[1] = TUSB_DESC_OTHER_SPEED_CONFIG;
+
+  // this example use the same configuration for both high and full speed mode
+  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
+
+  // This example use the same configuration for both high and full speed mode
   return desc_configuration;
 }
 
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_GD32VF103 b/examples/device/hid_composite_freertos/.skip.MCU_GD32VF103
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/examples/device/hid_composite_freertos/.skip.MCU_GD32VF103
diff --git a/examples/device/hid_composite_freertos/.skip.MCU_SAMX7X b/examples/device/hid_composite_freertos/.skip.MCU_SAMX7X
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/examples/device/hid_composite_freertos/.skip.MCU_SAMX7X
diff --git a/examples/device/hid_composite_freertos/src/FreeRTOSConfig.h b/examples/device/hid_composite_freertos/src/FreeRTOSConfig.h
index 99c5bc328..03f351018 100644
--- a/examples/device/hid_composite_freertos/src/FreeRTOSConfig.h
+++ b/examples/device/hid_composite_freertos/src/FreeRTOSConfig.h
@@ -154,11 +154,14 @@ extern uint32_t SystemCoreClock;
 //--------------------------------------------------------------------+
 // Interrupt nesting behavior configuration.
 //--------------------------------------------------------------------+
-/* Cortex-M specific definitions. __NVIC_PRIO_BITS is defined in core_cmx.h */
-#ifdef __NVIC_PRIO_BITS
+#if defined(__NVIC_PRIO_BITS)
+  // For Cortex-M specific: __NVIC_PRIO_BITS is defined in core_cmx.h
 	#define configPRIO_BITS       __NVIC_PRIO_BITS
+#elif defined(__ECLIC_INTCTLBITS)
+  // RISC-V Bumblebee core from nuclei
+  #define configPRIO_BITS       __ECLIC_INTCTLBITS
 #else
-  #error "This port requires __NVIC_PRIO_BITS to be defined"
+  #error "FreeRTOS configPRIO_BITS to be defined"
 #endif
 
 /* The lowest interrupt priority that can be used in a call to a "set priority" function. */
diff --git a/examples/device/hid_composite_freertos/src/freertos_hook.c b/examples/device/hid_composite_freertos/src/freertos_hook.c
index 273ad46e6..ab885947c 100644
--- a/examples/device/hid_composite_freertos/src/freertos_hook.c
+++ b/examples/device/hid_composite_freertos/src/freertos_hook.c
@@ -94,7 +94,7 @@ void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, Stack
   *pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
 }
 
-#if CFG_TUSB_MCU == OPT_MCU_RX63X
+#if CFG_TUSB_MCU == OPT_MCU_RX63X | CFG_TUSB_MCU == OPT_MCU_RX65X
 #include "iodefine.h"
 void vApplicationSetupTimerInterrupt(void)
 {
diff --git a/examples/device/hid_composite_freertos/src/main.c b/examples/device/hid_composite_freertos/src/main.c
index 47f976427..9c9830e34 100644
--- a/examples/device/hid_composite_freertos/src/main.c
+++ b/examples/device/hid_composite_freertos/src/main.c
@@ -282,9 +282,9 @@ void hid_task(void* param)
 // Invoked when sent REPORT successfully to host
 // Application can use this to send the next report
 // Note: For composite reports, report[0] is report ID
-void tud_hid_report_complete_cb(uint8_t itf, uint8_t const* report, uint8_t len)
+void tud_hid_report_complete_cb(uint8_t instance, uint8_t const* report, uint8_t len)
 {
-  (void) itf;
+  (void) instance;
   (void) len;
 
   uint8_t next_report_id = report[0] + 1;
@@ -299,10 +299,10 @@ void tud_hid_report_complete_cb(uint8_t itf, uint8_t const* report, uint8_t len)
 // Invoked when received GET_REPORT control request
 // Application must fill buffer report's content and return its length.
 // Return zero will cause the stack to STALL request
-uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
+uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
 {
   // TODO not Implemented
-  (void) itf;
+  (void) instance;
   (void) report_id;
   (void) report_type;
   (void) buffer;
@@ -313,14 +313,33 @@ uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t
 
 // Invoked when received SET_REPORT control request or
 // received data on OUT endpoint ( Report ID = 0, Type = 0 )
-void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
+void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
 {
-  // TODO set LED based on CAPLOCK, NUMLOCK etc...
-  (void) itf;
-  (void) report_id;
-  (void) report_type;
-  (void) buffer;
-  (void) bufsize;
+  (void) instance;
+
+  if (report_type == HID_REPORT_TYPE_OUTPUT)
+  {
+    // Set keyboard LED e.g Capslock, Numlock etc...
+    if (report_id == REPORT_ID_KEYBOARD)
+    {
+      // bufsize should be (at least) 1
+      if ( bufsize < 1 ) return;
+
+      uint8_t const kbd_leds = buffer[0];
+
+      if (kbd_leds & KEYBOARD_LED_CAPSLOCK)
+      {
+        // Capslock On: disable blink, turn led on
+        xTimerStop(blinky_tm, portMAX_DELAY);
+        board_led_write(true);
+      }else
+      {
+        // Caplocks Off: back to normal blink
+        board_led_write(false);
+        xTimerStart(blinky_tm, portMAX_DELAY);
+      }
+    }
+  }
 }
 
 //--------------------------------------------------------------------+
diff --git a/examples/device/hid_composite_freertos/src/tusb_config.h b/examples/device/hid_composite_freertos/src/tusb_config.h
index 4b0458ef0..4fbccc294 100644
--- a/examples/device/hid_composite_freertos/src/tusb_config.h
+++ b/examples/device/hid_composite_freertos/src/tusb_config.h
@@ -67,8 +67,9 @@
 // This examples use FreeRTOS
 #define CFG_TUSB_OS               OPT_OS_FREERTOS
 
-// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
-// #define CFG_TUSB_DEBUG           0
+#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
diff --git a/examples/device/hid_composite_freertos/src/usb_descriptors.c b/examples/device/hid_composite_freertos/src/usb_descriptors.c
index 1aff5e68e..791813fdf 100644
--- a/examples/device/hid_composite_freertos/src/usb_descriptors.c
+++ b/examples/device/hid_composite_freertos/src/usb_descriptors.c
@@ -36,6 +36,9 @@
 #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
 //--------------------------------------------------------------------+
@@ -43,13 +46,13 @@ tusb_desc_device_t const desc_device =
 {
     .bLength            = sizeof(tusb_desc_device_t),
     .bDescriptorType    = TUSB_DESC_DEVICE,
-    .bcdUSB             = 0x0200,
+    .bcdUSB             = USB_BCD,
     .bDeviceClass       = 0x00,
     .bDeviceSubClass    = 0x00,
     .bDeviceProtocol    = 0x00,
     .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-    .idVendor           = 0xCafe,
+    .idVendor           = USB_VID,
     .idProduct          = USB_PID,
     .bcdDevice          = 0x0100,
 
@@ -82,9 +85,9 @@ uint8_t const desc_hid_report[] =
 // Invoked when received GET HID REPORT DESCRIPTOR
 // Application return pointer to descriptor
 // Descriptor contents must exist long enough for transfer to complete
-uint8_t const * tud_hid_descriptor_report_cb(uint8_t itf)
+uint8_t const * tud_hid_descriptor_report_cb(uint8_t instance)
 {
-  (void) itf;
+  (void) instance;
   return desc_hid_report;
 }
 
@@ -111,6 +114,54 @@ uint8_t const desc_configuration[] =
   TUD_HID_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE, sizeof(desc_hid_report), EPNUM_HID, CFG_TUD_HID_EP_BUFSIZE, 5)
 };
 
+#if TUD_OPT_HIGH_SPEED
+// Per USB specs: high speed capable device must report device_qualifier and other_speed_configuration
+
+// 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       = 0x00,
+  .bDeviceSubClass    = 0x00,
+  .bDeviceProtocol    = 0x00,
+
+  .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
+
+  // other speed config is basically configuration with type = OHER_SPEED_CONFIG
+  memcpy(desc_other_speed_config, desc_configuration, CONFIG_TOTAL_LEN);
+  desc_other_speed_config[1] = TUSB_DESC_OTHER_SPEED_CONFIG;
+
+  // this example use the same configuration for both high and full speed mode
+  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
diff --git a/examples/device/hid_generic_inout/boards.js b/examples/device/hid_generic_inout/boards.js
index e8437cf53..6b78231a7 100644
--- a/examples/device/hid_generic_inout/boards.js
+++ b/examples/device/hid_generic_inout/boards.js
@@ -1,4 +1,4 @@
 module.exports = {
-	"Feather_nRF52840":[0X239A,0X8029],
-	"Metro_nRF52840":[0X239A,0X803F],
-}
\ No newline at end of file
+	"Adafruit Boards":[0x239A,0xFFFF],
+	"TinyUSB example":[0xCAFE,0xFFFF]
+}
diff --git a/examples/device/hid_generic_inout/hid_test.js b/examples/device/hid_generic_inout/hid_test.js
index eed6b78e2..daa958fd5 100644
--- a/examples/device/hid_generic_inout/hid_test.js
+++ b/examples/device/hid_generic_inout/hid_test.js
@@ -5,8 +5,6 @@ var HID = require('node-hid');
 var os = require('os')
 // list of supported devices
 var boards = require('./boards.js')
-
-var isWin = (os.platform() === 'win32');
 var devices = HID.devices();
 
 // this will choose any device found in the boards.js file
@@ -19,10 +17,8 @@ var message = "Hello World!"
 // This means if you have characters in your string that are not Latin-1 you will have to add additional logic for character codes above 255
 var messageBuffer = Array.from(message, function(c){return c.charCodeAt(0)});
 
-// Windows wants you to prepend a 0 to whatever you send
-if(isWin){
-	messageBuffer.unshift(0)
-}
+// HIDAPI requires us to prepend a 0 for single hid report as dummy reportID
+messageBuffer.unshift(0)
 
 // Some OSes expect that you always send a buffer that equals your report length
 // So lets fill up the rest of the buffer with zeros
@@ -66,6 +62,7 @@ function anySupportedBoard(d) {
 
 
 function isDevice(board,d){
-	return d.vendorId==board[0] && d.productId==board[1];
+	// product id 0xff is matches all
+	return d.vendorId==board[0] && (d.productId==board[1] || board[1] == 0xFFFF);
 }
 
diff --git a/examples/device/hid_generic_inout/hid_test.py b/examples/device/hid_generic_inout/hid_test.py
index c89d89062..a42930fb5 100644
--- a/examples/device/hid_generic_inout/hid_test.py
+++ b/examples/device/hid_generic_inout/hid_test.py
@@ -11,7 +11,10 @@ for dict in hid.enumerate(USB_VID):
     if dev:
         while True:
             # Get input from console and encode to UTF8 for array of chars.
-            str_out = input("Send text to HID Device : ").encode('utf-8')
+            # hid generic inout is single report therefore by HIDAPI requirement
+            # it must be preceeded with 0x00 as dummy reportID
+            str_out = b'\x00'
+            str_out += input("Send text to HID Device : ").encode('utf-8')
             dev.write(str_out)
             str_in = dev.read(64)
             print("Received from HID Device:", str_in, '\n')
diff --git a/examples/device/hid_generic_inout/src/main.c b/examples/device/hid_generic_inout/src/main.c
index 65874f483..32185560e 100644
--- a/examples/device/hid_generic_inout/src/main.c
+++ b/examples/device/hid_generic_inout/src/main.c
@@ -36,16 +36,24 @@
  *
  * There are 2 ways to test the sketch
  * 1. Using nodejs
- *    - Install nodejs and npm to your PC
- *    - Install excellent node-hid (https://github.com/node-hid/node-hid) by
- *      $ npm install node-hid
- *    - Run provided hid test script
- *      $ node hid_test.js
+ * - Install nodejs and npm to your PC
  *
- * 2. Using python hidRun
- *    - Python and `hid` package is required, for installation please follow https://pypi.org/project/hid/
- *    - Run provided hid test script to send and receive data to this device.
- *      $ python3 hid_test.py
+ * - Install excellent node-hid (https://github.com/node-hid/node-hid) by
+ *   $ npm install node-hid
+ *
+ * - Run provided hid test script
+ *   $ node hid_test.js
+ *
+ * 2. Using python
+ * - Install `hid` package (https://pypi.org/project/hid/) by
+ *   $ pip install hid
+ *
+ * - hid package replies on hidapi (https://github.com/libusb/hidapi) for backend,
+ *   which already available in Linux. However on windows, you may need to download its dlls from their release page and
+ *   copy it over to folder where python is installed.
+ *
+ * - Run provided hid test script to send and receive data to this device.
+ *   $ python3 hid_test.py
  */
 
 //--------------------------------------------------------------------+
diff --git a/examples/device/hid_generic_inout/src/usb_descriptors.c b/examples/device/hid_generic_inout/src/usb_descriptors.c
index 5a2f5ffdc..5dabf42a3 100644
--- a/examples/device/hid_generic_inout/src/usb_descriptors.c
+++ b/examples/device/hid_generic_inout/src/usb_descriptors.c
@@ -101,7 +101,7 @@ enum
 uint8_t const desc_configuration[] =
 {
   // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, protocol, report descriptor len, EP In & Out address, size & polling interval
   TUD_HID_INOUT_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE, sizeof(desc_hid_report), EPNUM_HID, 0x80 | EPNUM_HID, CFG_TUD_HID_EP_BUFSIZE, 10)
diff --git a/examples/device/midi_test/src/main.c b/examples/device/midi_test/src/main.c
index 9e0e82a10..193748477 100644
--- a/examples/device/midi_test/src/main.c
+++ b/examples/device/midi_test/src/main.c
@@ -134,7 +134,7 @@ void midi_task(void)
   uint8_t packet[4];
   while ( tud_midi_available() ) tud_midi_packet_read(packet);
 
-  // send note every 1000 ms
+  // send note periodically
   if (board_millis() - start_ms < 286) return; // not enough time
   start_ms += 286;
 
diff --git a/examples/device/midi_test/src/usb_descriptors.c b/examples/device/midi_test/src/usb_descriptors.c
index 9d92a7753..bd5a0eeab 100644
--- a/examples/device/midi_test/src/usb_descriptors.c
+++ b/examples/device/midi_test/src/usb_descriptors.c
@@ -91,7 +91,7 @@ enum
 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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, EP Out & EP In address, EP size
   TUD_MIDI_DESCRIPTOR(ITF_NUM_MIDI, 0, EPNUM_MIDI, 0x80 | EPNUM_MIDI, 64)
@@ -101,7 +101,7 @@ uint8_t const desc_fs_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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, EP Out & EP In address, EP size
   TUD_MIDI_DESCRIPTOR(ITF_NUM_MIDI, 0, EPNUM_MIDI, 0x80 | EPNUM_MIDI, 512)
diff --git a/examples/device/msc_dual_lun/src/msc_disk_dual.c b/examples/device/msc_dual_lun/src/msc_disk_dual.c
index 2ab050da8..18d3ca0d7 100644
--- a/examples/device/msc_dual_lun/src/msc_disk_dual.c
+++ b/examples/device/msc_dual_lun/src/msc_disk_dual.c
@@ -268,16 +268,33 @@ bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, boo
 // Copy disk's data to buffer (up to bufsize) and return number of copied bytes.
 int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
 {
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
   uint8_t const* addr = (lun ? msc_disk1[lba] : msc_disk0[lba]) + offset;
   memcpy(buffer, addr, bufsize);
 
   return bufsize;
 }
 
+bool tud_msc_is_writable_cb (uint8_t lun)
+{
+  (void) lun;
+
+#ifdef CFG_EXAMPLE_MSC_READONLY
+  return false;
+#else
+  return true;
+#endif
+}
+
 // Callback invoked when received WRITE10 command.
 // Process data in buffer to disk's storage and return number of written bytes
 int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t* buffer, uint32_t bufsize)
 {
+  // out of ramdisk
+  if ( lba >= DISK_BLOCK_NUM ) return -1;
+
 #ifndef CFG_EXAMPLE_MSC_READONLY
   uint8_t* addr = (lun ? msc_disk1[lba] : msc_disk0[lba])  + offset;
   memcpy(addr, buffer, bufsize);
@@ -296,7 +313,7 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
   // read10 & write10 has their own callback and MUST not be handled here
 
   void const* response = NULL;
-  uint16_t resplen = 0;
+  int32_t resplen = 0;
 
   // most scsi handled is input
   bool in_xfer = true;
diff --git a/examples/device/msc_dual_lun/src/usb_descriptors.c b/examples/device/msc_dual_lun/src/usb_descriptors.c
index 138de62a3..7e194ea7a 100644
--- a/examples/device/msc_dual_lun/src/usb_descriptors.c
+++ b/examples/device/msc_dual_lun/src/usb_descriptors.c
@@ -99,7 +99,7 @@ enum
 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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, EP Out & EP In address, EP size
   TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 0, EPNUM_MSC_OUT, EPNUM_MSC_IN, 64),
@@ -109,7 +109,7 @@ uint8_t const desc_fs_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, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, EP Out & EP In address, EP size
   TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 0, EPNUM_MSC_OUT, EPNUM_MSC_IN, 512),
diff --git a/examples/device/net_lwip_webserver/src/main.c b/examples/device/net_lwip_webserver/src/main.c
index 27adce86f..80831921a 100644
--- a/examples/device/net_lwip_webserver/src/main.c
+++ b/examples/device/net_lwip_webserver/src/main.c
@@ -178,21 +178,10 @@ bool tud_network_recv_cb(const uint8_t *src, uint16_t size)
 uint16_t tud_network_xmit_cb(uint8_t *dst, void *ref, uint16_t arg)
 {
   struct pbuf *p = (struct pbuf *)ref;
-  struct pbuf *q;
-  uint16_t len = 0;
 
   (void)arg; /* unused for this example */
 
-  /* traverse the "pbuf chain"; see ./lwip/src/core/pbuf.c for more info */
-  for(q = p; q != NULL; q = q->next)
-  {
-    memcpy(dst, (char *)q->payload, q->len);
-    dst += q->len;
-    len += q->len;
-    if (q->len == q->tot_len) break;
-  }
-
-  return len;
+  return pbuf_copy_partial(p, dst, p->tot_len, 0);
 }
 
 static void service_traffic(void)
diff --git a/examples/device/net_lwip_webserver/src/usb_descriptors.c b/examples/device/net_lwip_webserver/src/usb_descriptors.c
index 1a77c39d7..71e6c4582 100644
--- a/examples/device/net_lwip_webserver/src/usb_descriptors.c
+++ b/examples/device/net_lwip_webserver/src/usb_descriptors.c
@@ -107,8 +107,8 @@ uint8_t const * tud_descriptor_device_cb(void)
   #define EPNUM_NET_OUT     0x02
   #define EPNUM_NET_IN      0x82
 
-#elif CFG_TUSB_MCU == OPT_MCU_SAMG
-  // SAMG doesn't support a same endpoint number with different direction IN and OUT
+#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_NET_NOTIF   0x81
   #define EPNUM_NET_OUT     0x02
diff --git a/examples/device/uac2_headset/.skip.MCU_LPC11UXX b/examples/device/uac2_headset/.skip.MCU_LPC11UXX
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/examples/device/uac2_headset/.skip.MCU_LPC11UXX
diff --git a/examples/device/uac2_headset/.skip.MCU_LPC13XX b/examples/device/uac2_headset/.skip.MCU_LPC13XX
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/examples/device/uac2_headset/.skip.MCU_LPC13XX
diff --git a/examples/device/uac2_headset/.skip.MCU_NUC121 b/examples/device/uac2_headset/.skip.MCU_NUC121
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/examples/device/uac2_headset/.skip.MCU_NUC121
diff --git a/examples/device/uac2_headset/src/main.c b/examples/device/uac2_headset/src/main.c
index 1b6a770a3..790af088f 100644
--- a/examples/device/uac2_headset/src/main.c
+++ b/examples/device/uac2_headset/src/main.c
@@ -34,9 +34,15 @@
 // MACRO CONSTANT TYPEDEF PROTOTYPES
 //--------------------------------------------------------------------+
 
-#ifndef AUDIO_SAMPLE_RATE
-#define AUDIO_SAMPLE_RATE     48000
+// List of supported sample rates
+#if defined(__RX__)
+const uint32_t sample_rates[]       = {44100, 48000};
+#else
+const uint32_t sample_rates[]       = {44100, 48000, 88200, 96000};
 #endif
+uint32_t       current_sample_rate  = 44100;
+
+#define N_SAMPLE_RATES  TU_ARRAY_SIZE(sample_rates)
 
 /* Blink pattern
  * - 25 ms   : streaming data
@@ -76,11 +82,16 @@ int8_t mute[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX + 1];       // +1 for master chan
 int16_t volume[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX + 1];    // +1 for master channel 0
 
 // Buffer for microphone data
-int16_t mic_buf[1000];
+int32_t mic_buf[CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ / 4];
 // Buffer for speaker data
-int16_t spk_buf[1000];
+int32_t spk_buf[CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ / 4];
 // Speaker data size received in the last frame
 int spk_data_size;
+// Resolution per format
+const uint8_t resolutions_per_format[CFG_TUD_AUDIO_FUNC_1_N_FORMATS] = {CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX,
+                                                                        CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX};
+// Current resolution, update on format change
+uint8_t current_resolution;
 
 void led_blinking_task(void);
 void audio_task(void);
@@ -135,55 +146,35 @@ void tud_resume_cb(void)
   blink_interval_ms = BLINK_MOUNTED;
 }
 
-typedef struct TU_ATTR_PACKED
-{
-  union
-  {
-    struct TU_ATTR_PACKED
-    {
-      uint8_t recipient :  5; ///< Recipient type tusb_request_recipient_t.
-      uint8_t type      :  2; ///< Request type tusb_request_type_t.
-      uint8_t direction :  1; ///< Direction type. tusb_dir_t
-    } bmRequestType_bit;
-
-    uint8_t bmRequestType;
-  };
-
-  uint8_t bRequest;  ///< Request type audio_cs_req_t
-  uint8_t bChannelNumber;
-  uint8_t bControlSelector;
-  union
-  {
-    uint8_t bInterface;
-    uint8_t bEndpoint;
-  };
-  uint8_t bEntityID;
-  uint16_t wLength;
-} audio_control_request_t;
-
 // Helper for clock get requests
 static bool tud_audio_clock_get_request(uint8_t rhport, audio_control_request_t const *request)
 {
   TU_ASSERT(request->bEntityID == UAC2_ENTITY_CLOCK);
 
-  // Example supports only single frequency, same value will be used for current value and range
   if (request->bControlSelector == AUDIO_CS_CTRL_SAM_FREQ)
   {
     if (request->bRequest == AUDIO_CS_REQ_CUR)
     {
-      TU_LOG2("Clock get current freq %u\r\n", AUDIO_SAMPLE_RATE);
+      TU_LOG1("Clock get current freq %u\r\n", current_sample_rate);
 
-      audio_control_cur_4_t curf = { tu_htole32(AUDIO_SAMPLE_RATE) };
+      audio_control_cur_4_t curf = { tu_htole32(current_sample_rate) };
       return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *)request, &curf, sizeof(curf));
     }
     else if (request->bRequest == AUDIO_CS_REQ_RANGE)
     {
-      audio_control_range_4_n_t(1) rangef =
+      audio_control_range_4_n_t(N_SAMPLE_RATES) rangef =
       {
-        .wNumSubRanges = tu_htole16(1),
-        .subrange[0] = { tu_htole32(AUDIO_SAMPLE_RATE), tu_htole32(AUDIO_SAMPLE_RATE), 0}
+        .wNumSubRanges = tu_htole16(N_SAMPLE_RATES)
       };
-      TU_LOG2("Clock get freq range (%d, %d, %d)\r\n", (int)rangef.subrange[0].bMin, (int)rangef.subrange[0].bMax, (int)rangef.subrange[0].bRes);
+      TU_LOG1("Clock get %d freq ranges\r\n", N_SAMPLE_RATES);
+      for(uint8_t i = 0; i < N_SAMPLE_RATES; i++)
+      {
+        rangef.subrange[i].bMin = sample_rates[i];
+        rangef.subrange[i].bMax = sample_rates[i];
+        rangef.subrange[i].bRes = 0;
+        TU_LOG1("Range %d (%d, %d, %d)\r\n", i, (int)rangef.subrange[i].bMin, (int)rangef.subrange[i].bMax, (int)rangef.subrange[i].bRes);
+      }
+      
       return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *)request, &rangef, sizeof(rangef));
     }
   }
@@ -191,7 +182,7 @@ static bool tud_audio_clock_get_request(uint8_t rhport, audio_control_request_t
            request->bRequest == AUDIO_CS_REQ_CUR)
   {
     audio_control_cur_1_t cur_valid = { .bCur = 1 };
-    TU_LOG2("Clock get is valid %u\r\n", cur_valid.bCur);
+    TU_LOG1("Clock get is valid %u\r\n", cur_valid.bCur);
     return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *)request, &cur_valid, sizeof(cur_valid));
   }
   TU_LOG1("Clock get request not supported, entity = %u, selector = %u, request = %u\r\n",
@@ -199,6 +190,32 @@ static bool tud_audio_clock_get_request(uint8_t rhport, audio_control_request_t
   return false;
 }
 
+// Helper for clock set requests
+static bool tud_audio_clock_set_request(uint8_t rhport, audio_control_request_t const *request, uint8_t const *buf)
+{
+  (void)rhport;
+
+  TU_ASSERT(request->bEntityID == UAC2_ENTITY_CLOCK);
+  TU_VERIFY(request->bRequest == AUDIO_CS_REQ_CUR);
+
+  if (request->bControlSelector == AUDIO_CS_CTRL_SAM_FREQ)
+  {
+    TU_VERIFY(request->wLength == sizeof(audio_control_cur_4_t));
+
+    current_sample_rate = ((audio_control_cur_4_t *)buf)->bCur;
+
+    TU_LOG1("Clock set current freq: %d\r\n", current_sample_rate);
+
+    return true;
+  }
+  else
+  {
+    TU_LOG1("Clock set request not supported, entity = %u, selector = %u, request = %u\r\n",
+            request->bEntityID, request->bControlSelector, request->bRequest);
+    return false;
+  }
+}
+
 // Helper for feature unit get requests
 static bool tud_audio_feature_unit_get_request(uint8_t rhport, audio_control_request_t const *request)
 {
@@ -207,7 +224,7 @@ static bool tud_audio_feature_unit_get_request(uint8_t rhport, audio_control_req
   if (request->bControlSelector == AUDIO_FU_CTRL_MUTE && request->bRequest == AUDIO_CS_REQ_CUR)
   {
     audio_control_cur_1_t mute1 = { .bCur = mute[request->bChannelNumber] };
-    TU_LOG2("Get channel %u mute %d\r\n", request->bChannelNumber, mute1.bCur);
+    TU_LOG1("Get channel %u mute %d\r\n", request->bChannelNumber, mute1.bCur);
     return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *)request, &mute1, sizeof(mute1));
   }
   else if (UAC2_ENTITY_SPK_FEATURE_UNIT && request->bControlSelector == AUDIO_FU_CTRL_VOLUME)
@@ -218,14 +235,14 @@ static bool tud_audio_feature_unit_get_request(uint8_t rhport, audio_control_req
         .wNumSubRanges = tu_htole16(1),
         .subrange[0] = { .bMin = tu_htole16(-VOLUME_CTRL_50_DB), tu_htole16(VOLUME_CTRL_0_DB), tu_htole16(256) }
       };
-      TU_LOG2("Get channel %u volume range (%d, %d, %u) dB\r\n", request->bChannelNumber,
+      TU_LOG1("Get channel %u volume range (%d, %d, %u) dB\r\n", request->bChannelNumber,
               range_vol.subrange[0].bMin / 256, range_vol.subrange[0].bMax / 256, range_vol.subrange[0].bRes / 256);
       return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *)request, &range_vol, sizeof(range_vol));
     }
     else if (request->bRequest == AUDIO_CS_REQ_CUR)
     {
       audio_control_cur_2_t cur_vol = { .bCur = tu_htole16(volume[request->bChannelNumber]) };
-      TU_LOG2("Get channel %u volume %u dB\r\n", request->bChannelNumber, cur_vol.bCur);
+      TU_LOG1("Get channel %u volume %d dB\r\n", request->bChannelNumber, cur_vol.bCur / 256);
       return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *)request, &cur_vol, sizeof(cur_vol));
     }
   }
@@ -249,7 +266,7 @@ static bool tud_audio_feature_unit_set_request(uint8_t rhport, audio_control_req
 
     mute[request->bChannelNumber] = ((audio_control_cur_1_t *)buf)->bCur;
 
-    TU_LOG2("Set channel %d Mute: %d\r\n", request->bChannelNumber, mute[request->bChannelNumber]);
+    TU_LOG1("Set channel %d Mute: %d\r\n", request->bChannelNumber, mute[request->bChannelNumber]);
 
     return true;
   }
@@ -259,7 +276,7 @@ static bool tud_audio_feature_unit_set_request(uint8_t rhport, audio_control_req
 
     volume[request->bChannelNumber] = ((audio_control_cur_2_t const *)buf)->bCur;
 
-    TU_LOG2("Set channel %d volume: %d dB\r\n", request->bChannelNumber, volume[request->bChannelNumber] / 256);
+    TU_LOG1("Set channel %d volume: %d dB\r\n", request->bChannelNumber, volume[request->bChannelNumber] / 256);
 
     return true;
   }
@@ -299,7 +316,8 @@ bool tud_audio_set_req_entity_cb(uint8_t rhport, tusb_control_request_t const *p
 
   if (request->bEntityID == UAC2_ENTITY_SPK_FEATURE_UNIT)
     return tud_audio_feature_unit_set_request(rhport, request, buf);
-
+  if (request->bEntityID == UAC2_ENTITY_CLOCK)
+    return tud_audio_clock_set_request(rhport, request, buf);
   TU_LOG1("Set request not handled, entity = %d, selector = %d, request = %d\r\n",
           request->bEntityID, request->bControlSelector, request->bRequest);
 
@@ -329,6 +347,13 @@ bool tud_audio_set_itf_cb(uint8_t rhport, tusb_control_request_t const * p_reque
   if (ITF_NUM_AUDIO_STREAMING_SPK == itf && alt != 0)
       blink_interval_ms = BLINK_STREAMING;
 
+  // Clear buffer when streaming format is changed
+  spk_data_size = 0;
+  if(alt != 0)
+  {
+    current_resolution = resolutions_per_format[alt-1];
+  }
+
   return true;
 }
 
@@ -362,20 +387,40 @@ void audio_task(void)
 {
   // When new data arrived, copy data from speaker buffer, to microphone buffer
   // and send it over
+  // Only support speaker & headphone both have the same resolution
+  // If one is 16bit another is 24bit be care of LOUD noise !
   if (spk_data_size)
   {
-    int16_t *src = spk_buf;
-    int16_t *limit = spk_buf + spk_data_size / 2;
-    int16_t *dst = mic_buf;
-    while (src < limit)
+    if (current_resolution == 16)
     {
-      // Combine two channels into one
-      int32_t left = *src++;
-      int32_t right = *src++;
-      *dst++ = (int16_t)((left + right) / 2);
+      int16_t *src = (int16_t*)spk_buf;
+      int16_t *limit = (int16_t*)spk_buf + spk_data_size / 2;
+      int16_t *dst = (int16_t*)mic_buf;
+      while (src < limit)
+      {
+        // Combine two channels into one
+        int32_t left = *src++;
+        int32_t right = *src++;
+        *dst++ = (left >> 1) + (right >> 1);
+      }
+      tud_audio_write((uint8_t *)mic_buf, spk_data_size / 2);
+      spk_data_size = 0;
+    }
+    else if (current_resolution == 24)
+    {
+      int32_t *src = spk_buf;
+      int32_t *limit = spk_buf + spk_data_size / 4;
+      int32_t *dst = mic_buf;
+      while (src < limit)
+      {
+        // Combine two channels into one
+        int32_t left = *src++;
+        int32_t right = *src++;
+        *dst++ = ((left >> 1) + (right >> 1)) & 0xffffff00;
+      }
+      tud_audio_write((uint8_t *)mic_buf, spk_data_size / 2);
+      spk_data_size = 0;
     }
-    tud_audio_write((uint8_t *)mic_buf, spk_data_size / 2);
-    spk_data_size = 0;
   }
 }
 
diff --git a/examples/device/uac2_headset/src/tusb_config.h b/examples/device/uac2_headset/src/tusb_config.h
index 88f9efcff..e8d93f56a 100644
--- a/examples/device/uac2_headset/src/tusb_config.h
+++ b/examples/device/uac2_headset/src/tusb_config.h
@@ -93,33 +93,61 @@ extern "C" {
 //--------------------------------------------------------------------
 // AUDIO CLASS DRIVER CONFIGURATION
 //--------------------------------------------------------------------
-#define CFG_TUD_AUDIO_IN_PATH                     (CFG_TUD_AUDIO)
-#define CFG_TUD_AUDIO_OUT_PATH                    (CFG_TUD_AUDIO)
 
-//#define CFG_TUD_AUDIO_FUNC_1_DESC_LEN                       220       // This equals TUD_AUDIO_HEADSET_STEREO_DESC_LEN, however, including it from usb_descriptors.h is not possible due to some strange include hassle
-#define CFG_TUD_AUDIO_FUNC_1_DESC_LEN                       TUD_AUDIO_HEADSET_STEREO_DESC_LEN
+#define CFG_TUD_AUDIO_FUNC_1_DESC_LEN                                TUD_AUDIO_HEADSET_STEREO_DESC_LEN
+
+// How many formats are used, need to adjust USB descriptor if changed
+#define CFG_TUD_AUDIO_FUNC_1_N_FORMATS                               2
 
 // Audio format type I specifications
-#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX                  1
-#define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX          2
-#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX                  2
-#define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX          2
-#define CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP                    0
+#if defined(__RX__)
+#define CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE                         48000     // 16bit/48kHz is the best quality for Renesas RX
+#else
+#define CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE                         96000     // 24bit/96kHz is the best quality for full-speed, high-speed is needed beyond this
+#endif
+#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX                           1
+#define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX                           2
+
+// 16bit in 16bit slots
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX          2
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_TX                  16
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX          2
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX                  16
+
+#if defined(__RX__)
+// 8bit in 8bit slots
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX          1
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_TX                  8
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX          1
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX                  8
+#else
+// 24bit in 32bit slots
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX          4
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_TX                  24
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX          4
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX                  24
+#endif
 
 // EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
 #define CFG_TUD_AUDIO_ENABLE_EP_IN                1
-#define CFG_TUD_AUDIO_EP_SZ_IN                    (CFG_TUD_AUDIO_IN_PATH * (48 + 1) * (CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX) * (CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)) // 48 Samples (48 kHz) x 2 Bytes/Sample x n Channels
-#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ      CFG_TUD_AUDIO_EP_SZ_IN
-#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX         CFG_TUD_AUDIO_EP_SZ_IN                  // Maximum EP IN size for all AS alternate settings used
+
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
+
+#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ      TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN)*2
+#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX         TU_MAX(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_EP_SZ_IN, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_EP_SZ_IN) // Maximum EP IN size for all AS alternate settings used
 
 // EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
 #define CFG_TUD_AUDIO_ENABLE_EP_OUT               1
-#define CFG_TUD_AUDIO_EP_OUT_SZ                   (CFG_TUD_AUDIO_OUT_PATH * ((48 + CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP) * (CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_RX) * (CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX))) // N Samples (N kHz) x 2 Bytes/Sample x n Channels
-#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ     CFG_TUD_AUDIO_EP_OUT_SZ*3
-#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX        CFG_TUD_AUDIO_EP_OUT_SZ                 // Maximum EP IN size for all AS alternate settings used
+
+#define CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
+#define CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT    TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX)
+
+#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ     TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT)*2
+#define CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX        TU_MAX(CFG_TUD_AUDIO_UNC_1_FORMAT_1_EP_SZ_OUT, CFG_TUD_AUDIO_UNC_1_FORMAT_2_EP_SZ_OUT) // Maximum EP IN size for all AS alternate settings used
 
 // Number of Standard AS Interface Descriptors (4.9.1) defined per audio function - this is required to be able to remember the current alternate settings of these interfaces - We restrict us here to have a constant number for all audio functions (which means this has to be the maximum number of AS interfaces an audio function has and a second audio function with less AS interfaces just wastes a few bytes)
-#define CFG_TUD_AUDIO_FUNC_1_N_AS_INT 	          1
+#define CFG_TUD_AUDIO_FUNC_1_N_AS_INT 	          2
 
 // Size of control request buffer
 #define CFG_TUD_AUDIO_FUNC_1_CTRL_BUF_SZ	64
diff --git a/examples/device/uac2_headset/src/usb_descriptors.c b/examples/device/uac2_headset/src/usb_descriptors.c
index cd749eb65..64fa3c25b 100644
--- a/examples/device/uac2_headset/src/usb_descriptors.c
+++ b/examples/device/uac2_headset/src/usb_descriptors.c
@@ -79,21 +79,29 @@ uint8_t const * tud_descriptor_device_cb(void)
 #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 etc ...
-#define EPNUM_AUDIO   0x03
+#define EPNUM_AUDIO_IN    0x03
+#define EPNUM_AUDIO_OUT   0x03
 #elif CFG_TUSB_MCU == OPT_MCU_NRF5X
 // ISO endpoints for NRF5x are fixed to 0x08 (0x88)
-#define EPNUM_AUDIO   0x08
+#define EPNUM_AUDIO_IN    0x08
+#define EPNUM_AUDIO_OUT   0x08
+#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_AUDIO_IN    0x01
+#define EPNUM_AUDIO_OUT   0x02
 #else
-#define EPNUM_AUDIO   0x01
+#define EPNUM_AUDIO_IN    0x01
+#define EPNUM_AUDIO_OUT   0x01
 #endif
 
 uint8_t const desc_configuration[] =
 {
     // Interface count, string index, total length, attribute, power in mA
-    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+    TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
     // Interface number, string index, EP Out & EP In address, EP size
-    TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(2, 2, 16, EPNUM_AUDIO, CFG_TUD_AUDIO_EP_OUT_SZ, EPNUM_AUDIO | 0x80, CFG_TUD_AUDIO_EP_SZ_IN)
+    TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(2, EPNUM_AUDIO_OUT, EPNUM_AUDIO_IN | 0x80)
 };
 
 // Invoked when received GET CONFIGURATION DESCRIPTOR
diff --git a/examples/device/uac2_headset/src/usb_descriptors.h b/examples/device/uac2_headset/src/usb_descriptors.h
index d9c5a63a7..d9510ea4f 100644
--- a/examples/device/uac2_headset/src/usb_descriptors.h
+++ b/examples/device/uac2_headset/src/usb_descriptors.h
@@ -55,21 +55,36 @@ enum
     + TUD_AUDIO_DESC_OUTPUT_TERM_LEN\
     + TUD_AUDIO_DESC_INPUT_TERM_LEN\
     + TUD_AUDIO_DESC_OUTPUT_TERM_LEN\
+    /* Interface 1, Alternate 0 */\
     + TUD_AUDIO_DESC_STD_AS_INT_LEN\
+    /* Interface 1, Alternate 0 */\
     + TUD_AUDIO_DESC_STD_AS_INT_LEN\
     + TUD_AUDIO_DESC_CS_AS_INT_LEN\
     + TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
     + TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
     + TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN\
+    /* Interface 1, Alternate 2 */\
     + TUD_AUDIO_DESC_STD_AS_INT_LEN\
+    + TUD_AUDIO_DESC_CS_AS_INT_LEN\
+    + TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
+    + TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+    + TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN\
+    /* Interface 2, Alternate 0 */\
+    + TUD_AUDIO_DESC_STD_AS_INT_LEN\
+    /* Interface 2, Alternate 1 */\
+    + TUD_AUDIO_DESC_STD_AS_INT_LEN\
+    + TUD_AUDIO_DESC_CS_AS_INT_LEN\
+    + TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
+    + TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
+    + TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN\
+    /* Interface 2, Alternate 2 */\
     + TUD_AUDIO_DESC_STD_AS_INT_LEN\
     + TUD_AUDIO_DESC_CS_AS_INT_LEN\
     + TUD_AUDIO_DESC_TYPE_I_FORMAT_LEN\
     + TUD_AUDIO_DESC_STD_AS_ISO_EP_LEN\
     + TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN)
 
-
-#define TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(_stridx, _nBytesPerSample, _nBitsUsedPerSample, _epout, _epoutsize, _epin, _epinsize) \
+#define TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(_stridx, _epout, _epin) \
     /* Standard Interface Association Descriptor (IAD) */\
     TUD_AUDIO_DESC_IAD(/*_firstitfs*/ ITF_NUM_AUDIO_CONTROL, /*_nitfs*/ ITF_NUM_TOTAL, /*_stridx*/ 0x00),\
     /* Standard AC Interface Descriptor(4.7.1) */\
@@ -77,13 +92,13 @@ enum
     /* Class-Specific AC Interface Header Descriptor(4.7.2) */\
     TUD_AUDIO_DESC_CS_AC(/*_bcdADC*/ 0x0200, /*_category*/ AUDIO_FUNC_HEADSET, /*_totallen*/ TUD_AUDIO_DESC_CLK_SRC_LEN+TUD_AUDIO_DESC_FEATURE_UNIT_TWO_CHANNEL_LEN+TUD_AUDIO_DESC_INPUT_TERM_LEN+TUD_AUDIO_DESC_OUTPUT_TERM_LEN+TUD_AUDIO_DESC_INPUT_TERM_LEN+TUD_AUDIO_DESC_OUTPUT_TERM_LEN, /*_ctrl*/ AUDIO_CS_AS_INTERFACE_CTRL_LATENCY_POS),\
     /* Clock Source Descriptor(4.7.2.1) */\
-    TUD_AUDIO_DESC_CLK_SRC(/*_clkid*/ UAC2_ENTITY_CLOCK, /*_attr*/ 3, /*_ctrl*/ 5, /*_assocTerm*/ 0x00,  /*_stridx*/ 0x00),    \
+    TUD_AUDIO_DESC_CLK_SRC(/*_clkid*/ UAC2_ENTITY_CLOCK, /*_attr*/ 3, /*_ctrl*/ 7, /*_assocTerm*/ 0x00,  /*_stridx*/ 0x00),    \
     /* Input Terminal Descriptor(4.7.2.4) */\
     TUD_AUDIO_DESC_INPUT_TERM(/*_termid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_USB_STREAMING, /*_assocTerm*/ 0x00, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_nchannelslogical*/ 0x02, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_idxchannelnames*/ 0x00, /*_ctrl*/ 0 * (AUDIO_CTRL_R << AUDIO_IN_TERM_CTRL_CONNECTOR_POS), /*_stridx*/ 0x00),\
     /* Feature Unit Descriptor(4.7.2.8) */\
     TUD_AUDIO_DESC_FEATURE_UNIT_TWO_CHANNEL(/*_unitid*/ UAC2_ENTITY_SPK_FEATURE_UNIT, /*_srcid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrlch0master*/ (AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS), /*_ctrlch1*/ (AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS), /*_ctrlch2*/ (AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_MUTE_POS | AUDIO_CTRL_RW << AUDIO_FEATURE_UNIT_CTRL_VOLUME_POS), /*_stridx*/ 0x00),\
     /* Output Terminal Descriptor(4.7.2.5) */\
-    TUD_AUDIO_DESC_OUTPUT_TERM(/*_termid*/ UAC2_ENTITY_SPK_OUTPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_OUT_GENERIC_SPEAKER, /*_assocTerm*/ 0x00, /*_srcid*/ UAC2_ENTITY_SPK_FEATURE_UNIT, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_ctrl*/ 0x0000, /*_stridx*/ 0x00),\
+    TUD_AUDIO_DESC_OUTPUT_TERM(/*_termid*/ UAC2_ENTITY_SPK_OUTPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_OUT_HEADPHONES, /*_assocTerm*/ 0x00, /*_srcid*/ UAC2_ENTITY_SPK_FEATURE_UNIT, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_ctrl*/ 0x0000, /*_stridx*/ 0x00),\
     /* Input Terminal Descriptor(4.7.2.4) */\
     TUD_AUDIO_DESC_INPUT_TERM(/*_termid*/ UAC2_ENTITY_MIC_INPUT_TERMINAL, /*_termtype*/ AUDIO_TERM_TYPE_IN_GENERIC_MIC, /*_assocTerm*/ 0x00, /*_clkid*/ UAC2_ENTITY_CLOCK, /*_nchannelslogical*/ 0x01, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_idxchannelnames*/ 0x00, /*_ctrl*/ 0 * (AUDIO_CTRL_R << AUDIO_IN_TERM_CTRL_CONNECTOR_POS), /*_stridx*/ 0x00),\
     /* Output Terminal Descriptor(4.7.2.5) */\
@@ -95,26 +110,46 @@ enum
     /* Interface 1, Alternate 1 - alternate interface for data streaming */\
     TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_SPK), /*_altset*/ 0x01, /*_nEPs*/ 0x01, /*_stridx*/ 0x05),\
     /* Class-Specific AS Interface Descriptor(4.9.2) */\
-    TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ 0x02, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
+    TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
     /* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
-    TUD_AUDIO_DESC_TYPE_I_FORMAT(_nBytesPerSample, _nBitsUsedPerSample),\
+    TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX),\
     /* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
-    TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epout, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ADAPTIVE | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ _epoutsize, /*_interval*/ (CFG_TUSB_RHPORT0_MODE & OPT_MODE_HIGH_SPEED) ? 0x04 : 0x01),\
+    TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epout, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ADAPTIVE | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX), /*_interval*/ 0x01),\
+    /* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
+    TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_MILLISEC, /*_lockdelay*/ 0x0001),\
+    /* Interface 1, Alternate 2 - alternate interface for data streaming */\
+    TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_SPK), /*_altset*/ 0x02, /*_nEPs*/ 0x01, /*_stridx*/ 0x05),\
+    /* Class-Specific AS Interface Descriptor(4.9.2) */\
+    TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_SPK_INPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
+    /* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
+    TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX),\
+    /* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
+    TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epout, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ADAPTIVE | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX), /*_interval*/ 0x01),\
     /* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
     TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_MILLISEC, /*_lockdelay*/ 0x0001),\
     /* Standard AS Interface Descriptor(4.9.1) */\
     /* Interface 2, Alternate 0 - default alternate setting with 0 bandwidth */\
     TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_MIC), /*_altset*/ 0x00, /*_nEPs*/ 0x00, /*_stridx*/ 0x04),\
     /* Standard AS Interface Descriptor(4.9.1) */\
-    /* Interface 1, Alternate 1 - alternate interface for data streaming */\
+    /* Interface 2, Alternate 1 - alternate interface for data streaming */\
     TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_MIC), /*_altset*/ 0x01, /*_nEPs*/ 0x01, /*_stridx*/ 0x04),\
     /* Class-Specific AS Interface Descriptor(4.9.2) */\
-    TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_MIC_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ 0x01, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
+    TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_MIC_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
+    /* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
+    TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_TX),\
+    /* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
+    TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX), /*_interval*/ 0x01),\
+    /* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
+    TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000),\
+    /* Interface 2, Alternate 2 - alternate interface for data streaming */\
+    TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_MIC), /*_altset*/ 0x02, /*_nEPs*/ 0x01, /*_stridx*/ 0x04),\
+    /* Class-Specific AS Interface Descriptor(4.9.2) */\
+    TUD_AUDIO_DESC_CS_AS_INT(/*_termid*/ UAC2_ENTITY_MIC_OUTPUT_TERMINAL, /*_ctrl*/ AUDIO_CTRL_NONE, /*_formattype*/ AUDIO_FORMAT_TYPE_I, /*_formats*/ AUDIO_DATA_FORMAT_TYPE_I_PCM, /*_nchannelsphysical*/ CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX, /*_channelcfg*/ AUDIO_CHANNEL_CONFIG_NON_PREDEFINED, /*_stridx*/ 0x00),\
     /* Type I Format Type Descriptor(2.3.1.6 - Audio Formats) */\
-    TUD_AUDIO_DESC_TYPE_I_FORMAT(_nBytesPerSample, _nBitsUsedPerSample),\
+    TUD_AUDIO_DESC_TYPE_I_FORMAT(CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_TX),\
     /* Standard AS Isochronous Audio Data Endpoint Descriptor(4.10.1.1) */\
-    TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ _epinsize, /*_interval*/ (CFG_TUSB_RHPORT0_MODE & OPT_MODE_HIGH_SPEED) ? 0x04 : 0x01),\
+    TUD_AUDIO_DESC_STD_AS_ISO_EP(/*_ep*/ _epin, /*_attr*/ (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_ASYNCHRONOUS | TUSB_ISO_EP_ATT_DATA), /*_maxEPsize*/ TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX), /*_interval*/ 0x01),\
     /* Class-Specific AS Isochronous Audio Data Endpoint Descriptor(4.10.1.2) */\
-    TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000)\
+    TUD_AUDIO_DESC_CS_AS_ISO_EP(/*_attr*/ AUDIO_CS_AS_ISO_DATA_EP_ATT_NON_MAX_PACKETS_OK, /*_ctrl*/ AUDIO_CTRL_NONE, /*_lockdelayunit*/ AUDIO_CS_AS_ISO_DATA_EP_LOCK_DELAY_UNIT_UNDEFINED, /*_lockdelay*/ 0x0000)
 
 #endif
diff --git a/examples/device/usbtmc/src/usb_descriptors.c b/examples/device/usbtmc/src/usb_descriptors.c
index 2336266b8..423482634 100644
--- a/examples/device/usbtmc/src/usb_descriptors.c
+++ b/examples/device/usbtmc/src/usb_descriptors.c
@@ -122,7 +122,7 @@ enum
 uint8_t const desc_configuration[] =
 {
   // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   TUD_USBTMC_DESC(ITF_NUM_USBTMC),
 };
diff --git a/examples/device/webusb_serial/src/main.c b/examples/device/webusb_serial/src/main.c
index c85b3cc9a..aba4aedff 100644
--- a/examples/device/webusb_serial/src/main.c
+++ b/examples/device/webusb_serial/src/main.c
@@ -71,7 +71,7 @@ enum  {
 
 static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
 
-#define URL  "www.tinyusb.org/examples/webusb-serial"
+#define URL  "example.tinyusb.org/webusb-serial/"
 
 const tusb_desc_webusb_url_t desc_url =
 {
diff --git a/examples/device/webusb_serial/src/usb_descriptors.c b/examples/device/webusb_serial/src/usb_descriptors.c
index 4aefdb1f7..93e802a90 100644
--- a/examples/device/webusb_serial/src/usb_descriptors.c
+++ b/examples/device/webusb_serial/src/usb_descriptors.c
@@ -86,23 +86,34 @@ enum
 #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 etc ...
-  #define EPNUM_CDC     2
-  #define EPNUM_VENDOR  5
+  #define EPNUM_CDC_IN     2
+  #define EPNUM_CDC_OUT    2
+  #define EPNUM_VENDOR_IN  5
+  #define EPNUM_VENDOR_OUT 5
+#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_IN     2
+  #define EPNUM_CDC_OUT    3
+  #define EPNUM_VENDOR_IN  4
+  #define EPNUM_VENDOR_OUT 5
 #else
-  #define EPNUM_CDC     2
-  #define EPNUM_VENDOR  3
+  #define EPNUM_CDC_IN     2
+  #define EPNUM_CDC_OUT    2
+  #define EPNUM_VENDOR_IN  3
+  #define EPNUM_VENDOR_OUT 3
 #endif
 
 uint8_t const desc_configuration[] =
 {
   // Config number, interface count, string index, total length, attribute, power in mA
-  TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  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, 0x81, 8, EPNUM_CDC, 0x80 | EPNUM_CDC, TUD_OPT_HIGH_SPEED ? 512 : 64),
+  TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, 0x81, 8, EPNUM_CDC_OUT, 0x80 | EPNUM_CDC_IN, TUD_OPT_HIGH_SPEED ? 512 : 64),
 
   // Interface number, string index, EP Out & IN address, EP size
-  TUD_VENDOR_DESCRIPTOR(ITF_NUM_VENDOR, 5, EPNUM_VENDOR, 0x80 | EPNUM_VENDOR, TUD_OPT_HIGH_SPEED ? 512 : 64)
+  TUD_VENDOR_DESCRIPTOR(ITF_NUM_VENDOR, 5, EPNUM_VENDOR_OUT, 0x80 | EPNUM_VENDOR_IN, TUD_OPT_HIGH_SPEED ? 512 : 64)
 };
 
 // Invoked when received GET CONFIGURATION DESCRIPTOR