SCBVolumeCtrl
SCBVolumeCtrl) << 2, 0x80008000);
SCBVolumeCtrl) << 2, 0xffffffff);
snd_cs46xx_poke(chip, (scb->address + SCBVolumeCtrl) << 2, val);
snd_cs46xx_poke(chip, (scb->address + SCBVolumeCtrl + 1) << 2, val);