LAN9118_BYTE_TEST
bus_space_write_4(iot, ioh, LAN9118_BYTE_TEST, 0);
val = bus_space_read_4(iot, ioh, LAN9118_BYTE_TEST);
val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_BYTE_TEST);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_BYTE_TEST,