CDCE_NCM_TX_MAXLEN
if (start >= CDCE_NCM_TX_MAXLEN)
if (end > CDCE_NCM_TX_MAXLEN)
end = CDCE_NCM_TX_MAXLEN;
usbd_xfer_set_frame_offset(xfer, index * CDCE_NCM_TX_MAXLEN, index);
.bufsize = (CDCE_NCM_TX_FRAMES_MAX * CDCE_NCM_TX_MAXLEN),
(sc->sc_ncm.tx_max > CDCE_NCM_TX_MAXLEN)) {
sc->sc_ncm.tx_max = CDCE_NCM_TX_MAXLEN;