ATU_ENDPT_RX
sc->atu_ed[ATU_ENDPT_RX] = ed->bEndpointAddress;
if (sc->atu_ep[ATU_ENDPT_RX] != NULL)
usbd_abort_pipe(sc->atu_ep[ATU_ENDPT_RX]);
sc->atu_ep[ATU_ENDPT_RX]);
usbd_setup_xfer(c->atu_xfer, sc->atu_ep[ATU_ENDPT_RX], c, c->atu_buf,
err = usbd_open_pipe(sc->atu_iface, sc->atu_ed[ATU_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->atu_ep[ATU_ENDPT_RX]);
usbd_setup_xfer(c->atu_xfer, sc->atu_ep[ATU_ENDPT_RX], c,
if (sc->atu_ep[ATU_ENDPT_RX] != NULL) {
err = usbd_close_pipe(sc->atu_ep[ATU_ENDPT_RX]);
sc->atu_ep[ATU_ENDPT_RX] = NULL;