GUS_NPORT1
if (bus_space_map(iot, iobase, GUS_NPORT1, 0, &ioh1))
bus_space_unmap(iot, ioh1, GUS_NPORT1);
ia->ia_iosize = GUS_NPORT1;
if (bus_space_map(sc->sc_iot, sc->sc_iobase, GUS_NPORT1, 0, &sc->sc_ioh1))