Composite USB device MSC + Vendor
Hello,
I'm working on a firmware which currently run in USB vendor interface (bInterfaceClass = 0xFF) and it's working.
Now I want to add MassStorage. My Firmware is a bit older so I add all usb composite parte by my self (in usbd_core ...) . I defined USE_USBD_COMPOSITE and set :
#define USBD_CMPSIT_ACTIVATE_MSC 1
#define USBD_CMPSIT_ACTIVATE_CUSTOMHID 1
#define USBD_MAX_CLASS_INTERFACES 2U
#define USBD_MAX_SUPPORTED_CLASS 2U
#define USBD_MAX_CLASS_ENDPOINTS 2U
(I use custom HID class for the Vendor interface and I edited USBD_CMPSIT_CUSTOMHIDDesc )
I set Msc first 'cause I read that some OS prefer.
Init function :
void MX_USB_DEVICE_Init(void)
{
#ifdef STM32H7xx
HAL_PWREx_EnableUSBVoltageDetector();
#endif //STM32H7xx
/* Init Device Library, add supported class and start the library. */
if (USBD_Init(&hUsbDeviceHS, &HS_Desc, DEVICE_HS) != USBD_OK)
{
DEBUG_PRINTF("[MX_USB_DEVICE_Init] USB failed to init \r\n");
}
//register classes
MassStorage_InstID = hUsbDeviceHS.classId;
USBD_RegisterClassComposite(&hUsbDeviceHS, &MassStorageDevice, CLASS_TYPE_MSC,MassStorage_EpAdress);
Usb_InstID = hUsbDeviceHS.classId;
USBD_RegisterClassComposite(&hUsbDeviceHS, &Usb_STM32xx, CLASS_TYPE_CHID, Usb_EpAdress);
if (USBD_CMPSIT_SetClassID(&hUsbDeviceHS, CLASS_TYPE_MSC, 0) != 0xFF)
{
if(RegisterStorage(&hUsbDeviceHS, &MassStorage_fops_HS) != USBD_OK)
{
DEBUG_PRINTF("[MX_USB_DEVICE_Init] register MassStorage interface failed to init \r\n");
}
}
//register interfaces
if (USBD_CMPSIT_SetClassID(&hUsbDeviceHS, CLASS_TYPE_CHID, 0) != 0xFF)
{
if (Usb_RegisterInterface(&hUsbDeviceHS, &Usb_fops_HS) != USBD_OK)
{
DEBUG_PRINTF("[MX_USB_DEVICE_Init] register Usb interface failed to init \r\n");
}
}
}
But when I run I feel like the first interface start (Msc) and then stop responding when the second try to start and when nothing works.
Does anyone have any idea what I'm doing wrong?