MUE_ENDPT_RX
usbd_clear_endpoint_stall_async(sc->mue_ep[MUE_ENDPT_RX]);
usbd_setup_xfer(xfer, sc->mue_ep[MUE_ENDPT_RX],
if (sc->mue_ep[MUE_ENDPT_RX] != NULL) {
err = usbd_close_pipe(sc->mue_ep[MUE_ENDPT_RX]);
sc->mue_ep[MUE_ENDPT_RX] = NULL;
sc->mue_ed[MUE_ENDPT_RX] = ed->bEndpointAddress;
if (sc->mue_ep[MUE_ENDPT_RX] != NULL)
usbd_abort_pipe(sc->mue_ep[MUE_ENDPT_RX]);
err = usbd_open_pipe(sc->mue_iface, sc->mue_ed[MUE_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->mue_ep[MUE_ENDPT_RX]);
usbd_setup_xfer(c->mue_xfer, sc->mue_ep[MUE_ENDPT_RX],