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alsa-util: Add functions for accessing mixer elements through mixer class

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Instead of using the hctl interface, we can find controls belonging
to other iface types than "mixer". We do this by introducing a new
mixer class "SND_MIXER_ELEM_PULSEAUDIO" and create snd_mixer_elem's
for all PCM and CARD iface types (as Jacks are of the CARD type and
ELD controls are of the PCM type).

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
This commit is contained in:
David Henningsson 2014-09-01 15:38:25 +02:00
parent f7c7cd1825
commit 1fd8848e64
2 changed files with 79 additions and 0 deletions
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2
src/modules/alsa/alsa-util.h
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@ -145,6 +145,8 @@ bool pa_alsa_may_tsched(bool want);
snd_hctl_elem_t* pa_alsa_find_jack(snd_hctl_t *hctl, const char* jack_name);
snd_hctl_elem_t* pa_alsa_find_eld_ctl(snd_hctl_t *hctl, int device);
snd_mixer_elem_t *pa_alsa_mixer_find(snd_mixer_t *mixer, const char *name, unsigned int device);
snd_mixer_t *pa_alsa_open_mixer(int alsa_card_index, char **ctl_device, snd_hctl_t **hctl);
typedef struct pa_hdmi_eld pa_hdmi_eld;