tipd_write_8
tipd_write_8(sc, TPS_INT_MASK_1, CD_INT_PLUG_EVENT);
tipd_write_8(sc, TPS_INT_MASK_1, 0);
tipd_write_8(sc, TPS_INT_MASK_1, CD_INT_PLUG_EVENT);
tipd_write_8(sc, TPS_INT_CLEAR_1, event);
int tipd_write_8(struct tipd_softc *, uint8_t, uint64_t);