UDAV_BUFSZ
total_len > UDAV_BUFSZ ) {
usbd_setup_xfer(xfer, sc->sc_pipe_rx, c, c->udav_buf, UDAV_BUFSZ,
c, c->udav_buf, UDAV_BUFSZ,
c->udav_buf = usbd_alloc_buffer(c->udav_xfer, UDAV_BUFSZ);
c->udav_buf = usbd_alloc_buffer(c->udav_xfer, UDAV_BUFSZ);