- usbd_alloc_buffer
- usbd_free_buffe
- usbd_get_buffer
- usbd_do_request
- usbd_do_request_flags
begin to document the changes present on the USBMP branch:
- usbd_sync_transfer_sig
- usb_detach_wait
- usb_detach_broadcast
create a new section on device detachment. XXX needs a code example.