audio_control_write
return (audio_control_write(ctrl, value));
if (audio_control_write(ctrlp->af_ctrlp, ctrlp->cval)) {
if (audio_control_write(ctrlp->af_ctrlp, ctrlp->cval)) {
if (audio_control_write(ctrlp->af_ctrlp, cval)) {
int audio_control_write(audio_ctrl_t *, uint64_t);