diff --git a/examples/device/cdc_msc_hid/src/main.c b/examples/device/cdc_msc_hid/src/main.c
index c5e7a306..fc2f2aad 100644
--- a/examples/device/cdc_msc_hid/src/main.c
+++ b/examples/device/cdc_msc_hid/src/main.c
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #include <stdlib.h>
@@ -79,6 +78,38 @@ int main(void)
   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 CDC
 //--------------------------------------------------------------------+
@@ -217,37 +248,6 @@ void tud_hid_set_report_cb(uint8_t report_id, hid_report_type_t report_type, uin
 
 #endif
 
-//--------------------------------------------------------------------+
-// 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;
-}
-
 //--------------------------------------------------------------------+
 // BLINKING TASK
 //--------------------------------------------------------------------+
diff --git a/examples/device/cdc_msc_hid/src/msc_disk.c b/examples/device/cdc_msc_hid/src/msc_disk.c
index 8bcd056e..f8f4f3cb 100644
--- a/examples/device/cdc_msc_hid/src/msc_disk.c
+++ b/examples/device/cdc_msc_hid/src/msc_disk.c
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #include "bsp/board.h"
diff --git a/examples/device/cdc_msc_hid/src/tusb_config.h b/examples/device/cdc_msc_hid/src/tusb_config.h
index 2614bcb6..7cea8b78 100644
--- a/examples/device/cdc_msc_hid/src/tusb_config.h
+++ b/examples/device/cdc_msc_hid/src/tusb_config.h
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #ifndef _TUSB_CONFIG_H_
@@ -113,7 +112,7 @@
  * This will occupies 256 bytes of ROM. It will also enable the use of extra APIs
  * - tud_hid_keyboard_send_char()
  */
-#define CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP 1
+#define CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP 0
 
 #ifdef __cplusplus
  }
diff --git a/examples/device/cdc_msc_hid/src/usb_descriptors.c b/examples/device/cdc_msc_hid/src/usb_descriptors.c
index 28a4b28d..c3bcc6f2 100644
--- a/examples/device/cdc_msc_hid/src/usb_descriptors.c
+++ b/examples/device/cdc_msc_hid/src/usb_descriptors.c
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #include "tusb.h"
@@ -68,6 +67,7 @@ tusb_desc_device_t const desc_device =
 };
 
 //------------- HID Report Descriptor -------------//
+#if CFG_TUD_HID
 enum
 {
   REPORT_ID_KEYBOARD = 1,
@@ -79,6 +79,7 @@ uint8_t const desc_hid_report[] =
   HID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(REPORT_ID_KEYBOARD), ),
   HID_REPORT_DESC_MOUSE   ( HID_REPORT_ID(REPORT_ID_MOUSE), )
 };
+#endif
 
 //------------- Configuration Descriptor -------------//
 enum
@@ -101,7 +102,7 @@ enum
 
 enum
 {
-  CONFIG_DESC_LEN = sizeof(tusb_desc_configuration_t) + CFG_TUD_CDC*TUD_CDC_DESC_LEN + CFG_TUD_MSC*TUD_MSC_DESC_LEN + CFG_TUD_HID*TUD_HID_DESC_LEN
+  CONFIG_TOTAL_LEN = TUD_CONFIG_DESC_LEN + CFG_TUD_CDC*TUD_CDC_DESC_LEN + CFG_TUD_MSC*TUD_MSC_DESC_LEN + CFG_TUD_HID*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
@@ -117,7 +118,7 @@ enum
 uint8_t const desc_configuration[] =
 {
   // Config: self-powered with remote wakeup support, max power up to 100 mA
-  TUD_CONFIG_DESCRIPTOR(ITF_NUM_TOTAL, 0, CONFIG_DESC_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
 
 #if CFG_TUD_CDC
   TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, 0x81, 8, 0x02, 0x82, 64),
@@ -167,5 +168,7 @@ tud_desc_set_t tud_desc_set =
     .string_arr   = (uint8_t const **) string_desc_arr,
     .string_count = sizeof(string_desc_arr)/sizeof(string_desc_arr[0]),
 
+#if CFG_TUD_HID
     .hid_report = desc_hid_report,
+#endif
 };
diff --git a/examples/device/cdc_msc_hid_freertos/src/main.c b/examples/device/cdc_msc_hid_freertos/src/main.c
index 2877cd38..f10c81d7 100644
--- a/examples/device/cdc_msc_hid_freertos/src/main.c
+++ b/examples/device/cdc_msc_hid_freertos/src/main.c
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #include <stdlib.h>
@@ -74,12 +73,12 @@ int main(void)
   // Create task
 #if CFG_TUD_CDC
   extern void cdc_task(void* params);
-  xTaskCreate( cdc_task, "cdc", 256, NULL, configMAX_PRIORITIES-2, NULL);
+  xTaskCreate( cdc_task, "cdc", 128, NULL, configMAX_PRIORITIES-2, NULL);
 #endif
 
 #if CFG_TUD_HID
   extern void hid_task(void* params);
-  xTaskCreate( hid_task, "hid", 256, NULL, configMAX_PRIORITIES-2, NULL);
+  xTaskCreate( hid_task, "hid", 128, NULL, configMAX_PRIORITIES-2, NULL);
 #endif
 
   vTaskStartScheduler();
@@ -102,6 +101,37 @@ void usb_device_task(void* param)
   }
 }
 
+//--------------------------------------------------------------------+
+// Device callbacks
+//--------------------------------------------------------------------+
+
+// Invoked when device is mounted
+void tud_mount_cb(void)
+{
+  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
+}
+
+// Invoked when device is unmounted
+void tud_umount_cb(void)
+{
+  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_NOT_MOUNTED), 0);
+}
+
+// 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;
+  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_SUSPENDED), 0);
+}
+
+// Invoked when usb bus is resumed
+void tud_resume_cb(void)
+{
+  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
+}
+
 //--------------------------------------------------------------------+
 // USB CDC
 //--------------------------------------------------------------------+
@@ -249,37 +279,6 @@ void tud_hid_set_report_cb(uint8_t report_id, hid_report_type_t report_type, uin
 
 #endif
 
-//--------------------------------------------------------------------+
-// Device callbacks
-//--------------------------------------------------------------------+
-
-// Invoked when device is mounted
-void tud_mount_cb(void)
-{
-  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
-}
-
-// Invoked when device is unmounted
-void tud_umount_cb(void)
-{
-  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_NOT_MOUNTED), 0);
-}
-
-// 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;
-  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_SUSPENDED), 0);
-}
-
-// Invoked when usb bus is resumed
-void tud_resume_cb(void)
-{
-  xTimerChangePeriod(blink_tm, pdMS_TO_TICKS(BLINK_MOUNTED), 0);
-}
-
 //--------------------------------------------------------------------+
 // BLINKING TASK
 //--------------------------------------------------------------------+
diff --git a/examples/device/cdc_msc_hid_freertos/src/msc_disk.c b/examples/device/cdc_msc_hid_freertos/src/msc_disk.c
index 8bcd056e..f8f4f3cb 100644
--- a/examples/device/cdc_msc_hid_freertos/src/msc_disk.c
+++ b/examples/device/cdc_msc_hid_freertos/src/msc_disk.c
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #include "bsp/board.h"
diff --git a/examples/device/cdc_msc_hid_freertos/src/tusb_config.h b/examples/device/cdc_msc_hid_freertos/src/tusb_config.h
index 9444ca89..15f09954 100644
--- a/examples/device/cdc_msc_hid_freertos/src/tusb_config.h
+++ b/examples/device/cdc_msc_hid_freertos/src/tusb_config.h
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #ifndef _TUSB_CONFIG_H_
@@ -113,7 +112,7 @@
  * This will occupies 256 bytes of ROM. It will also enable the use of extra APIs
  * - tud_hid_keyboard_send_char()
  */
-#define CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP 1
+#define CFG_TUD_HID_ASCII_TO_KEYCODE_LOOKUP 0
 
 #ifdef __cplusplus
  }
diff --git a/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c b/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c
index 28a4b28d..c3bcc6f2 100644
--- a/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c
+++ b/examples/device/cdc_msc_hid_freertos/src/usb_descriptors.c
@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  *
- * This file is part of the TinyUSB stack.
  */
 
 #include "tusb.h"
@@ -68,6 +67,7 @@ tusb_desc_device_t const desc_device =
 };
 
 //------------- HID Report Descriptor -------------//
+#if CFG_TUD_HID
 enum
 {
   REPORT_ID_KEYBOARD = 1,
@@ -79,6 +79,7 @@ uint8_t const desc_hid_report[] =
   HID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(REPORT_ID_KEYBOARD), ),
   HID_REPORT_DESC_MOUSE   ( HID_REPORT_ID(REPORT_ID_MOUSE), )
 };
+#endif
 
 //------------- Configuration Descriptor -------------//
 enum
@@ -101,7 +102,7 @@ enum
 
 enum
 {
-  CONFIG_DESC_LEN = sizeof(tusb_desc_configuration_t) + CFG_TUD_CDC*TUD_CDC_DESC_LEN + CFG_TUD_MSC*TUD_MSC_DESC_LEN + CFG_TUD_HID*TUD_HID_DESC_LEN
+  CONFIG_TOTAL_LEN = TUD_CONFIG_DESC_LEN + CFG_TUD_CDC*TUD_CDC_DESC_LEN + CFG_TUD_MSC*TUD_MSC_DESC_LEN + CFG_TUD_HID*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
@@ -117,7 +118,7 @@ enum
 uint8_t const desc_configuration[] =
 {
   // Config: self-powered with remote wakeup support, max power up to 100 mA
-  TUD_CONFIG_DESCRIPTOR(ITF_NUM_TOTAL, 0, CONFIG_DESC_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+  TUD_CONFIG_DESCRIPTOR(ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
 
 #if CFG_TUD_CDC
   TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, 0x81, 8, 0x02, 0x82, 64),
@@ -167,5 +168,7 @@ tud_desc_set_t tud_desc_set =
     .string_arr   = (uint8_t const **) string_desc_arr,
     .string_count = sizeof(string_desc_arr)/sizeof(string_desc_arr[0]),
 
+#if CFG_TUD_HID
     .hid_report = desc_hid_report,
+#endif
 };
diff --git a/src/class/cdc/cdc_device.h b/src/class/cdc/cdc_device.h
index d7f89081..6c59bac7 100644
--- a/src/class/cdc/cdc_device.h
+++ b/src/class/cdc/cdc_device.h
@@ -94,38 +94,6 @@ ATTR_WEAK void tud_cdc_rx_wanted_cb(uint8_t itf, char wanted_char);
 ATTR_WEAK void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts);
 ATTR_WEAK void tud_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* p_line_coding);
 
-//--------------------------------------------------------------------+
-// Interface Descriptor Template
-//--------------------------------------------------------------------+
-
-// Length of template descriptor: 66 bytes
-#define TUD_CDC_DESC_LEN  (8+9+5+5+4+5+7+9+7+7)
-
-// CDC Descriptor Template
-// interface number, string index, EP notification address and size, EP data address (out,in) and size.
-#define TUD_CDC_DESCRIPTOR(_itfnum, _stridx, _ep_notif, _ep_notif_size, _epout, _epin, _epsize) \
-  /* Interface Associate */\
-  8, TUSB_DESC_INTERFACE_ASSOCIATION, _itfnum, 2, TUSB_CLASS_CDC, CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL, CDC_COMM_PROTOCOL_ATCOMMAND, 0,\
-  /* CDC Control Interface */\
-  9, TUSB_DESC_INTERFACE, _itfnum, 0, 1, TUSB_CLASS_CDC, CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL, CDC_COMM_PROTOCOL_ATCOMMAND, _stridx,\
-  /* CDC Header */\
-  5, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_HEADER, U16_TO_U8S_LE(0x0120),\
-  /* CDC Call */\
-  5, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_CALL_MANAGEMENT, 0, (_itfnum) + 1,\
-  /* CDC ACM: support line request */\
-  4, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT, 2,\
-  /* CDC Union */\
-  5, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_UNION, _itfnum, (_itfnum) + 1,\
-  /* Endpoint Notification */\
-  7, TUSB_DESC_ENDPOINT, _ep_notif, TUSB_XFER_INTERRUPT, U16_TO_U8S_LE(_ep_notif_size), 16,\
-  /* CDC Data Interface */\
-  9, TUSB_DESC_INTERFACE, (_itfnum)+1, 0, 2, TUSB_CLASS_CDC_DATA, 0, 0, 0,\
-  /* Endpoint Out */\
-  7, TUSB_DESC_ENDPOINT, _epout, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0,\
-  /* Endpoint In */\
-  7, TUSB_DESC_ENDPOINT, _epin, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0
-
-
 /** @} */
 /** @} */
 
diff --git a/src/class/hid/hid_device.h b/src/class/hid/hid_device.h
index c017a822..f72be61e 100644
--- a/src/class/hid/hid_device.h
+++ b/src/class/hid/hid_device.h
@@ -111,20 +111,6 @@ static inline bool tud_hid_mouse_button_release(uint8_t report_id)
   return tud_hid_mouse_report(report_id, 0, 0, 0, 0, 0);
 }
 
-//--------------------------------------------------------------------+
-// Interface Descriptor Template
-//--------------------------------------------------------------------+
-
-#define TUD_HID_DESC_LEN    (9 + 9 + 7)
-
-#define TUD_HID_DESCRIPTOR(_itfnum, _stridx, _boot_protocol, _report_desc_len, _epin, _epsize, _ep_interval) \
-  /* Interface */\
-  9, TUSB_DESC_INTERFACE, _itfnum, 0, 1, TUSB_CLASS_HID, (_boot_protocol) ? HID_SUBCLASS_BOOT : 0, _boot_protocol, _stridx,\
-  /* HID descriptor */\
-  9, HID_DESC_TYPE_HID, U16_TO_U8S_LE(0x0111), 0, 1, HID_DESC_TYPE_REPORT, U16_TO_U8S_LE(_report_desc_len),\
-  /* Endpoint descriptor */\
-  7, TUSB_DESC_ENDPOINT, _epin, TUSB_XFER_INTERRUPT, U16_TO_U8S_LE(_epsize), _ep_interval
-
 /* --------------------------------------------------------------------+
  * HID Report Descriptor Template
  *
diff --git a/src/class/msc/msc_device.h b/src/class/msc/msc_device.h
index b6cef78b..3ed22350 100644
--- a/src/class/msc/msc_device.h
+++ b/src/class/msc/msc_device.h
@@ -146,23 +146,6 @@ ATTR_WEAK void tud_msc_scsi_complete_cb(uint8_t lun, uint8_t const scsi_cmd[16])
 // Hook to make a mass storage device read-only. TODO remove
 ATTR_WEAK bool tud_msc_is_writable_cb(uint8_t lun);
 
-//--------------------------------------------------------------------+
-// Interface Descriptor Template
-//--------------------------------------------------------------------+
-
-// Length of template descriptor: 23 bytes
-#define TUD_MSC_DESC_LEN    (9 + 7 + 7)
-
-// Interface Number, EP Out & EP In address
-#define TUD_MSC_DESCRIPTOR(_itfnum, _stridx, _epout, _epin, _epsize) \
-  /* Interface */\
-  9, TUSB_DESC_INTERFACE, _itfnum, 0, 2, TUSB_CLASS_MSC, MSC_SUBCLASS_SCSI, MSC_PROTOCOL_BOT, _stridx,\
-  /* Endpoint Out */\
-  7, TUSB_DESC_ENDPOINT, _epout, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0,\
-  /* Endpoint In */\
-  7, TUSB_DESC_ENDPOINT, _epin, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0
-
-
 /** @} */
 /** @} */
 
diff --git a/src/device/usbd.h b/src/device/usbd.h
index 9525e2e6..de59731a 100644
--- a/src/device/usbd.h
+++ b/src/device/usbd.h
@@ -95,9 +95,69 @@ ATTR_WEAK void tud_resume_cb(void);
 // Interface Descriptor Template
 //--------------------------------------------------------------------+
 
+#define TUD_CONFIG_DESC_LEN   (9)
+
+// Inteface count, string index, total length, attribute, power in mA
 #define TUD_CONFIG_DESCRIPTOR(_itfcount, _stridx, _total_len, _attribute, _power_ma) \
   9, TUSB_DESC_CONFIGURATION, U16_TO_U8S_LE(_total_len), _itfcount, 1, _stridx, TU_BIT(7) | _attribute, (_power_ma)/2
 
+//------------- CDC -------------//
+
+// Length of template descriptor: 66 bytes
+#define TUD_CDC_DESC_LEN  (8+9+5+5+4+5+7+9+7+7)
+
+// CDC Descriptor Template
+// interface number, string index, EP notification address and size, EP data address (out,in) and size.
+#define TUD_CDC_DESCRIPTOR(_itfnum, _stridx, _ep_notif, _ep_notif_size, _epout, _epin, _epsize) \
+  /* Interface Associate */\
+  8, TUSB_DESC_INTERFACE_ASSOCIATION, _itfnum, 2, TUSB_CLASS_CDC, CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL, CDC_COMM_PROTOCOL_ATCOMMAND, 0,\
+  /* CDC Control Interface */\
+  9, TUSB_DESC_INTERFACE, _itfnum, 0, 1, TUSB_CLASS_CDC, CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL, CDC_COMM_PROTOCOL_ATCOMMAND, _stridx,\
+  /* CDC Header */\
+  5, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_HEADER, U16_TO_U8S_LE(0x0120),\
+  /* CDC Call */\
+  5, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_CALL_MANAGEMENT, 0, (_itfnum) + 1,\
+  /* CDC ACM: support line request */\
+  4, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT, 2,\
+  /* CDC Union */\
+  5, TUSB_DESC_CLASS_SPECIFIC, CDC_FUNC_DESC_UNION, _itfnum, (_itfnum) + 1,\
+  /* Endpoint Notification */\
+  7, TUSB_DESC_ENDPOINT, _ep_notif, TUSB_XFER_INTERRUPT, U16_TO_U8S_LE(_ep_notif_size), 16,\
+  /* CDC Data Interface */\
+  9, TUSB_DESC_INTERFACE, (_itfnum)+1, 0, 2, TUSB_CLASS_CDC_DATA, 0, 0, 0,\
+  /* Endpoint Out */\
+  7, TUSB_DESC_ENDPOINT, _epout, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0,\
+  /* Endpoint In */\
+  7, TUSB_DESC_ENDPOINT, _epin, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0
+
+//------------- MSC -------------//
+
+// Length of template descriptor: 23 bytes
+#define TUD_MSC_DESC_LEN    (9 + 7 + 7)
+
+// Interface number, string index, EP Out & EP In address, EP size
+#define TUD_MSC_DESCRIPTOR(_itfnum, _stridx, _epout, _epin, _epsize) \
+  /* Interface */\
+  9, TUSB_DESC_INTERFACE, _itfnum, 0, 2, TUSB_CLASS_MSC, MSC_SUBCLASS_SCSI, MSC_PROTOCOL_BOT, _stridx,\
+  /* Endpoint Out */\
+  7, TUSB_DESC_ENDPOINT, _epout, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0,\
+  /* Endpoint In */\
+  7, TUSB_DESC_ENDPOINT, _epin, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0
+
+//------------- HID -------------//
+
+// Length of template descriptor: 25 bytes
+#define TUD_HID_DESC_LEN    (9 + 9 + 7)
+
+// Interface number, string index, protocol, report descriptor len, EP In address, size & polling interval
+#define TUD_HID_DESCRIPTOR(_itfnum, _stridx, _boot_protocol, _report_desc_len, _epin, _epsize, _ep_interval) \
+  /* Interface */\
+  9, TUSB_DESC_INTERFACE, _itfnum, 0, 1, TUSB_CLASS_HID, (_boot_protocol) ? HID_SUBCLASS_BOOT : 0, _boot_protocol, _stridx,\
+  /* HID descriptor */\
+  9, HID_DESC_TYPE_HID, U16_TO_U8S_LE(0x0111), 0, 1, HID_DESC_TYPE_REPORT, U16_TO_U8S_LE(_report_desc_len),\
+  /* Endpoint descriptor */\
+  7, TUSB_DESC_ENDPOINT, _epin, TUSB_XFER_INTERRUPT, U16_TO_U8S_LE(_epsize), _ep_interval
+
 #ifdef __cplusplus
  }
 #endif