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Changed control to use events mask. Added subscribe ioctl

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This commit is contained in:
Abramo Bagnara 2001-02-13 21:29:30 +00:00
parent fa51799255
commit 3e97ef3ea0
14 changed files with 225 additions and 205 deletions
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18
src/control/control_hw.c
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@ -111,10 +111,21 @@ static int snd_ctl_hw_poll_descriptor(snd_ctl_t *handle)
return hw->fd;
}
static int snd_ctl_hw_hw_info(snd_ctl_t *handle, snd_ctl_card_info_t *info)
static int snd_ctl_hw_subscribe_events(snd_ctl_t *handle, int subscribe)
{
snd_ctl_hw_t *hw = handle->private_data;
if (ioctl(hw->fd, SNDRV_CTL_IOCTL_INFO, info) < 0)
if (ioctl(hw->fd, SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS, &subscribe) < 0) {
SYSERR("SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS failed");
return -errno;
}
return subscribe;
}
static int snd_ctl_hw_card_info(snd_ctl_t *handle, snd_ctl_card_info_t *info)
{
snd_ctl_hw_t *hw = handle->private_data;
if (ioctl(hw->fd, SNDRV_CTL_IOCTL_CARD_INFO, info) < 0)
SYSERR("SNDRV_CTL_IOCTL_CARD_INFO failed");
return -errno;
return 0;
}
@ -230,7 +241,8 @@ snd_ctl_ops_t snd_ctl_hw_ops = {
nonblock: snd_ctl_hw_nonblock,
async: snd_ctl_hw_async,
poll_descriptor: snd_ctl_hw_poll_descriptor,
hw_info: snd_ctl_hw_hw_info,
subscribe_events: snd_ctl_hw_subscribe_events,
card_info: snd_ctl_hw_card_info,
element_list: snd_ctl_hw_elem_list,
element_info: snd_ctl_hw_elem_info,
element_read: snd_ctl_hw_elem_read,