tipd_read_4
tipd_read_4(sc, TPS_STATUS, &sc->sc_status);
tipd_read_4(sc, TPS_STATUS, &sc->sc_status);
error = tipd_read_4(sc, TPS_STATUS, &status);
error = tipd_read_4(sc, TPS_CMD1, &val);
error = tipd_read_4(sc, TPS_CMD1, &val);
int tipd_read_4(struct tipd_softc *, uint8_t, uint32_t *);