CFUMASS_T_STATUS
[CFUMASS_T_STATUS] = {
usbd_xfer_get_frame_buffer(sc->sc_xfer[CFUMASS_T_STATUS], 0);
cfumass_transfer_stop_and_drain(sc, CFUMASS_T_STATUS);
cfumass_transfer_start(sc, CFUMASS_T_STATUS);
cfumass_transfer_start(sc, CFUMASS_T_STATUS);