usb composite device working with vcp and msc

Makefile

@@ -130,6 +130,7 @@ SRC = main.c \
 	lib/slopes.c \
 	lib/midi.c \
 	lib/mhost.c \
+	lib/usb_otg.c \
 	$(wildcard ll/*.c) \
 	$(USBD_COMPOSITE)/App/usb_device.c \
 	$(USBD_COMPOSITE)/App/usbd_cdc_acm_if.c \

Middlewares/Third_Party/AL94_USB_Composite/COMPOSITE/App/usb_device.c

@@ -1,73 +1,14 @@
-/* USER CODE BEGIN Header */
-/**
-  ******************************************************************************
-  * @file           : usb_device.c
-  * @version        : v1.0_Cube
-  * @brief          : This file implements the USB Device
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
-  * All rights reserved.</center></h2>
-  *
-  * This software component is licensed by ST under Ultimate Liberty license
-  * SLA0044, the "License"; You may not use this file except in compliance with
-  * the License. You may obtain a copy of the License at:
-  *                             www.st.com/SLA0044
-  *
-  ******************************************************************************
-  */
-/* USER CODE END Header */
-
-/* Includes ------------------------------------------------------------------*/
-
 #include "usb_device.h"
 #include "usbd_desc.h"
 #include "main.h"
 #include "../Target/usbd_conf.h"
 
-/* USER CODE BEGIN Includes */
+#include "ll/debug_usart.h"
 #include "usbd_composite.h"
-/* USER CODE END Includes */
-
-/* USER CODE BEGIN PV */
-/* Private variables ---------------------------------------------------------*/
-
-/* USER CODE END PV */
-
-/* USER CODE BEGIN PFP */
-/* Private function prototypes -----------------------------------------------*/
-
-/* USER CODE END PFP */
 
-/* USB Device Core handle declaration. */
 USBD_HandleTypeDef hUsbDevice;
 
-/*
- * -- Insert your variables declaration here --
- */
-/* USER CODE BEGIN 0 */
-
-/* USER CODE END 0 */
-
-/*
- * -- Insert your external function declaration here --
- */
-/* USER CODE BEGIN 1 */
-
-/* USER CODE END 1 */
-
-/**
-  * Init USB device Library, add supported class and start the library
-  * @retval None
-  */
-void MX_USB_DEVICE_Init(void)
-{
-  /* USER CODE BEGIN USB_DEVICE_Init_PreTreatment */
-
-  /* USER CODE END USB_DEVICE_Init_PreTreatment */
-
-  /* Init Device Library, add supported class and start the library. */
+void MX_USB_DEVICE_Init(void){
   USBD_COMPOSITE_Mount_Class();
 
 #if (USBD_USE_HS == 1)
@@ -149,6 +90,8 @@ void MX_USB_DEVICE_Init(void)
     Error_Handler();
   }
 #endif
+    // printf("usbd_start\n\r");
+    // U_PrintNow();
   if (USBD_Start(&hUsbDevice) != USBD_OK)
   {
     Error_Handler();