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Added record channel operations.

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This commit is contained in:
Jaroslav Kysela 1998-11-29 16:30:35 +00:00
parent 713c391e47
commit e8d923761f
2 changed files with 28 additions and 0 deletions
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2
include/mixer.h
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@ -26,6 +26,8 @@ int snd_mixer_channel(void *handle, const char *channel_id);
int snd_mixer_channel_info(void *handle, int channel, snd_mixer_channel_info_t * info);
int snd_mixer_channel_read(void *handle, int channel, snd_mixer_channel_t * data);
int snd_mixer_channel_write(void *handle, int channel, snd_mixer_channel_t * data);
int snd_mixer_channel_record_read(void *handle, int channel, snd_mixer_channel_t * data);
int snd_mixer_channel_record_write(void *handle, int channel, snd_mixer_channel_t * data);
int snd_mixer_switches(void *handle);
int snd_mixer_switch_read(void *handle, int switchn, snd_mixer_switch_t * data);
int snd_mixer_switch_write(void *handle, int switchn, snd_mixer_switch_t * data);

26
src/mixer/mixer.c
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@ -190,6 +190,32 @@ int snd_mixer_channel_write(void *handle, int channel, snd_mixer_channel_t * dat
return 0;
}
int snd_mixer_channel_record_read(void *handle, int channel, snd_mixer_channel_t * data)
{
snd_mixer_t *mixer;
mixer = (snd_mixer_t *) handle;
if (!mixer)
return -EINVAL;
data->channel = channel;
if (ioctl(mixer->fd, SND_MIXER_IOCTL_CHANNEL_RREAD, data) < 0)
return -errno;
return 0;
}
int snd_mixer_channel_record_write(void *handle, int channel, snd_mixer_channel_t * data)
{
snd_mixer_t *mixer;
mixer = (snd_mixer_t *) handle;
if (!mixer)
return -EINVAL;
data->channel = channel;
if (ioctl(mixer->fd, SND_MIXER_IOCTL_CHANNEL_RWRITE, data) < 0)
return -errno;
return 0;
}
int snd_mixer_switches(void *handle)
{
snd_mixer_t *mixer;