CISS_IDB
bus_space_write_4(sc->iot, sc->ioh, CISS_IDB, CISS_IDB_CFG);
bus_space_barrier(sc->iot, sc->ioh, CISS_IDB, 4,
(void)bus_space_read_4(sc->iot, sc->ioh, CISS_IDB + 4);
if (!(bus_space_read_4(sc->iot, sc->ioh, CISS_IDB) & CISS_IDB_CFG))
bus_space_barrier(sc->iot, sc->ioh, CISS_IDB, 4,
if (bus_space_read_4(sc->iot, sc->ioh, CISS_IDB) & CISS_IDB_CFG) {