auacer_cdata
struct auacer_cdata *sc_cdata;
sizeof(struct auacer_cdata),
sizeof(struct auacer_cdata),
if ((error = bus_dmamap_create(sc->dmat, sizeof(struct auacer_cdata), 1,
sizeof(struct auacer_cdata), 0, 0,
sc->sc_cdata, sizeof(struct auacer_cdata),
sizeof(struct auacer_cdata));