SACCKBD_STAT
bus_space_read_4(sc->iot, sc->ioh, SACCKBD_STAT);
stat = bus_space_read_4(sc->iot, sc->ioh, SACCKBD_STAT);
tmp = bus_space_read_4(sc->iot, sc->ioh, SACCKBD_STAT);
stat = bus_space_read_4(sc->iot, sc->ioh, SACCKBD_STAT);
stat = bus_space_read_4(sc->iot, sc->ioh, SACCKBD_STAT);