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Added ctl_elem_lock and unlock code...

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This commit is contained in:
Jaroslav Kysela 2001-04-19 13:53:39 +00:00
parent 192d3c9226
commit 12a47782cb
4 changed files with 74 additions and 0 deletions
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18
src/control/control_hw.c
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@ -163,6 +163,22 @@ static int snd_ctl_hw_elem_write(snd_ctl_t *handle, snd_ctl_elem_value_t *contro
return 0;
}
static int snd_ctl_hw_elem_lock(snd_ctl_t *handle, snd_ctl_elem_id_t *id)
{
snd_ctl_hw_t *hw = handle->private_data;
if (ioctl(hw->fd, SNDRV_CTL_IOCTL_ELEM_LOCK, id) < 0)
return -errno;
return 0;
}
static int snd_ctl_hw_elem_unlock(snd_ctl_t *handle, snd_ctl_elem_id_t *id)
{
snd_ctl_hw_t *hw = handle->private_data;
if (ioctl(hw->fd, SNDRV_CTL_IOCTL_ELEM_UNLOCK, id) < 0)
return -errno;
return 0;
}
static int snd_ctl_hw_hwdep_next_device(snd_ctl_t *handle, int * device)
{
snd_ctl_hw_t *hw = handle->private_data;
@ -255,6 +271,8 @@ snd_ctl_ops_t snd_ctl_hw_ops = {
element_info: snd_ctl_hw_elem_info,
element_read: snd_ctl_hw_elem_read,
element_write: snd_ctl_hw_elem_write,
element_lock: snd_ctl_hw_elem_lock,
element_unlock: snd_ctl_hw_elem_unlock,
hwdep_next_device: snd_ctl_hw_hwdep_next_device,
hwdep_info: snd_ctl_hw_hwdep_info,
pcm_next_device: snd_ctl_hw_pcm_next_device,