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Mixer: Added filter ioctls for read events.

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This commit is contained in:
Jaroslav Kysela 1999-11-27 16:33:58 +00:00
parent 9c524f9e7c
commit 091ee0f71b
2 changed files with 16 additions and 3 deletions
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3
include/mixer.h
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@ -31,7 +31,8 @@ int snd_mixer_group_write(snd_mixer_t *handle, snd_mixer_group_t * group);
int snd_mixer_element_info(snd_mixer_t *handle, snd_mixer_element_info_t * info); int snd_mixer_element_info(snd_mixer_t *handle, snd_mixer_element_info_t * info);
int snd_mixer_element_read(snd_mixer_t *handle, snd_mixer_element_t * element); int snd_mixer_element_read(snd_mixer_t *handle, snd_mixer_element_t * element);
int snd_mixer_element_write(snd_mixer_t *handle, snd_mixer_element_t * element); int snd_mixer_element_write(snd_mixer_t *handle, snd_mixer_element_t * element);
int snd_mixer_read_filter(snd_mixer_t *handle, snd_mixer_filter_t * filter); int snd_mixer_get_filter(snd_mixer_t *handle, snd_mixer_filter_t * filter);
int snd_mixer_put_filter(snd_mixer_t *handle, snd_mixer_filter_t * filter);
int snd_mixer_read(snd_mixer_t *handle, snd_mixer_callbacks_t * callbacks); int snd_mixer_read(snd_mixer_t *handle, snd_mixer_callbacks_t * callbacks);
void snd_mixer_set_bit(unsigned int *bitmap, int bit, int val); void snd_mixer_set_bit(unsigned int *bitmap, int bit, int val);

16
src/mixer/mixer.c
View file

@ -204,14 +204,26 @@ int snd_mixer_element_write(snd_mixer_t *handle, snd_mixer_element_t * element)
return 0; return 0;
} }
int snd_mixer_read_filter(snd_mixer_t *handle, snd_mixer_filter_t * filter) int snd_mixer_get_filter(snd_mixer_t *handle, snd_mixer_filter_t * filter)
{ {
snd_mixer_t *mixer; snd_mixer_t *mixer;
mixer = handle; mixer = handle;
if (!mixer || !filter) if (!mixer || !filter)
return -EINVAL; return -EINVAL;
if (ioctl(mixer->fd, SND_MIXER_IOCTL_READ_FILTER, filter) < 0) if (ioctl(mixer->fd, SND_MIXER_IOCTL_GET_FILTER, filter) < 0)
return -errno;
return 0;
}
int snd_mixer_put_filter(snd_mixer_t *handle, snd_mixer_filter_t * filter)
{
snd_mixer_t *mixer;
mixer = handle;
if (!mixer || !filter)
return -EINVAL;
if (ioctl(mixer->fd, SND_MIXER_IOCTL_PUT_FILTER, filter) < 0)
return -errno; return -errno;
return 0; return 0;
} }