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authorDavid Wagner <david.wagner@intel.com>2014-04-02 15:12:54 +0200
committerVinod Koul <vinod.koul@intel.com>2014-08-12 14:04:32 +0530
commit4cddf19dfcf65e6fb1277a3230fd0fe509ec7e81 (patch)
tree912ab5aaa742278190c8cd832f4ded4cf322c0fa /include
parent9ecb93fb6b4474bee5e700e65663af15088c97c2 (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 'include')
-rw-r--r--include/tinyalsa/asoundlib.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/tinyalsa/asoundlib.h b/include/tinyalsa/asoundlib.h
index eb3e4c4..045c8b5 100644
--- a/include/tinyalsa/asoundlib.h
+++ b/include/tinyalsa/asoundlib.h
@@ -179,6 +179,9 @@ unsigned int pcm_bytes_to_frames(struct pcm *pcm, unsigned int bytes);
int pcm_get_htimestamp(struct pcm *pcm, unsigned int *avail,
struct timespec *tstamp);
+/* Returns the subdevice on which the pcm has been opened */
+unsigned int pcm_get_subdevice(struct pcm *pcm);
+
/* Write data to the fifo.
* Will start playback on the first write or on a write that
* occurs after a fifo underrun.