static int set_volume_ops(snd_mixer_elem_t *elem, int dir,
snd_mixer_selem_channel_id_t channel, long value)
{
int changed;
changed = _snd_mixer_selem_set_volume(elem, dir, channel, value);
if (changed < 0)
return changed;
if (changed)
return selem_write(elem);
return 0;
}
static int set_switch_ops(snd_mixer_elem_t *elem, int dir,
snd_mixer_selem_channel_id_t channel, int value)
{
int changed;
selem_none_t *s = snd_mixer_elem_get_private(elem);
if (dir == SM_PLAY) {
if (! (s->selem.caps & (SM_CAP_GSWITCH|SM_CAP_PSWITCH)))
return -EINVAL;
} else {
if (! (s->selem.caps & (SM_CAP_GSWITCH|SM_CAP_CSWITCH)))
return -EINVAL;
}
changed = _snd_mixer_selem_set_switch(elem, dir, channel, value);
if (changed < 0)
return changed;
if (changed)
return selem_write(elem);
return 0;
}
