HDAC_CORBCTL
HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, 0x0);
HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, HDAC_CORBCTL_CMEIE);
corbctl = HDAC_READ_1(&sc->mem, HDAC_CORBCTL);
HDAC_WRITE_1(&sc->mem, HDAC_CORBCTL, corbctl);
[HDAC_CORBCTL] = hda_set_corbctl,