EP_W4_CTRLR_STATUS
bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, EP_W4_CTRLR_STATUS, \
bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, EP_W4_CTRLR_STATUS) \
bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, EP_W4_CTRLR_STATUS, \
bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, EP_W4_CTRLR_STATUS) \
bus_space_write_2(sc->sc_iot, sc->sc_ioh, EP_W4_CTRLR_STATUS, 0);
ack = bus_space_read_2(sc->sc_iot, sc->sc_ioh, EP_W4_CTRLR_STATUS) &
EP_W4_CTRLR_STATUS) & EF_MII_DATA)
bus_space_write_2(sc->sc_iot, sc->sc_ioh, EP_W4_CTRLR_STATUS, 0);