Endpoint transfer.
int32_t usb_d_ep_transfer( const struct usb_d_transfer * xfer )
For control endpoints, start the transfer according to the direction in the bmRequest type, and finish with STATUS stage. For non-control endpoints, the transfer will be unique direction. Defined by bit 8 of the endpoint address.
Type: const struct usb_d_transfer *
Pointer to the transfer description.
Type: int32_t
Operation status.
Success.
Error code.