PORT_DSP_DATA
PORT_DSP_DATA, cp);
return bus_space_read_2(sc->iot, sc->ioh, PORT_DSP_DATA);
bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_DATA, data);
PORT_DSP_DATA) == reg)
bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_DATA, reg);
if (bus_space_read_2(sc->iot, sc->ioh, PORT_DSP_DATA) == data)
bus_space_write_2(sc->iot, sc->ioh, PORT_DSP_DATA, data);