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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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20
src/control/control_shm.c
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@ -122,17 +122,26 @@ static int snd_ctl_shm_poll_descriptor(snd_ctl_t *ctl)
return fd;
}
static int snd_ctl_shm_hw_info(snd_ctl_t *ctl, snd_ctl_card_info_t *info)
static int snd_ctl_shm_subscribe_events(snd_ctl_t *ctl, int subscribe)
{
snd_ctl_shm_t *shm = ctl->private_data;
volatile snd_ctl_shm_ctrl_t *ctrl = shm->ctrl;
ctrl->cmd = SND_CTL_IOCTL_POLL_DESCRIPTOR;
ctrl->u.subscribe_events = subscribe;
return snd_ctl_shm_action(ctl);
}
static int snd_ctl_shm_card_info(snd_ctl_t *ctl, snd_ctl_card_info_t *info)
{
snd_ctl_shm_t *shm = ctl->private_data;
volatile snd_ctl_shm_ctrl_t *ctrl = shm->ctrl;
int err;
// ctrl->u.hw_info = *info;
ctrl->cmd = SNDRV_CTL_IOCTL_INFO;
// ctrl->u.card_info = *info;
ctrl->cmd = SNDRV_CTL_IOCTL_CARD_INFO;
err = snd_ctl_shm_action(ctl);
if (err < 0)
return err;
*info = ctrl->u.hw_info;
*info = ctrl->u.card_info;
return err;
}
@ -334,7 +343,8 @@ snd_ctl_ops_t snd_ctl_shm_ops = {
nonblock: snd_ctl_shm_nonblock,
async: snd_ctl_shm_async,
poll_descriptor: snd_ctl_shm_poll_descriptor,
hw_info: snd_ctl_shm_hw_info,
subscribe_events: snd_ctl_shm_subscribe_events,
card_info: snd_ctl_shm_card_info,
element_list: snd_ctl_shm_elem_list,
element_info: snd_ctl_shm_elem_info,
element_read: snd_ctl_shm_elem_read,