diff options
author | David Wagner <david.wagner@intel.com> | 2014-04-02 15:12:54 +0200 |
---|---|---|
committer | Vinod Koul <vinod.koul@intel.com> | 2014-08-12 14:04:32 +0530 |
commit | 4cddf19dfcf65e6fb1277a3230fd0fe509ec7e81 (patch) | |
tree | 912ab5aaa742278190c8cd832f4ded4cf322c0fa /pcm.c | |
parent | 9ecb93fb6b4474bee5e700e65663af15088c97c2 (diff) |
tinyalsa: add pcm_get_subdevice()
The users of tinyalsa had no way of knowing on which subdevice a stream had
been created. A new API, "unsigned int pcm_get_subdevice(struct *pcm)" returns
it. This information is filled during the pcm_open()
Change-Id: Ie866e10e06ce6691ede09e2ca46a24441723ea8b
Signed-off-by: David Wagner <david.wagner@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'pcm.c')
-rw-r--r-- | pcm.c | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -171,6 +171,7 @@ struct pcm { void *mmap_buffer; unsigned int noirq_frames_per_msec; long pcm_delay; + unsigned int subdevice; }; unsigned int pcm_get_buffer_size(struct pcm *pcm) @@ -183,6 +184,11 @@ const char* pcm_get_error(struct pcm *pcm) return pcm->error; } +unsigned int pcm_get_subdevice(struct pcm *pcm) +{ + return pcm->subdevice; +} + static int oops(struct pcm *pcm, int e, const char *fmt, ...) { va_list ap; @@ -654,6 +660,7 @@ struct pcm *pcm_open(unsigned int card, unsigned int device, oops(pcm, errno, "cannot get info"); goto fail_close; } + pcm->subdevice = info.subdevice; param_init(¶ms); param_set_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT, |