ET_FLAG_TXRX_ENABLED
if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0) {
sc->sc_flags |= ET_FLAG_TXRX_ENABLED;
if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0)
if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0)
if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0 &&
sc->sc_flags &= ~ET_FLAG_TXRX_ENABLED;