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Add snd_{ctl|pcm}_open_fallback() functions

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This patch adds new API functions, snd_ctl_open_fallback() and
snd_pcm_open_fallback().  These are just like snd_*_open_lconf() but
used to open a fallback PCM/control.  The difference is that it replaces
the name string with the given original name, so that hctl and other
upper-layers will recognize it as an alias.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-07-26 13:10:24 +02:00
parent e6f990e5c9
commit acb423d937
4 changed files with 50 additions and 0 deletions
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1
include/control.h
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@ -224,6 +224,7 @@ char *snd_device_name_get_hint(const void *hint, const char *id);
int snd_ctl_open(snd_ctl_t **ctl, const char *name, int mode);
int snd_ctl_open_lconf(snd_ctl_t **ctl, const char *name, int mode, snd_config_t *lconf);
int snd_ctl_open_fallback(snd_ctl_t **ctl, snd_config_t *root, const char *name, const char *orig_name, int mode);
int snd_ctl_close(snd_ctl_t *ctl);
int snd_ctl_nonblock(snd_ctl_t *ctl, int nonblock);
int snd_async_add_ctl_handler(snd_async_handler_t **handler, snd_ctl_t *ctl,