diff options
| author | Omair Mohammed Abdullah <omair.m.abdullah@linux.intel.com> | 2013-01-31 16:35:39 +0530 |
|---|---|---|
| committer | David Wagner <david.wagner@intel.com> | 2014-04-29 16:36:56 +0200 |
| commit | c9032a07de3321063cbd0c1136cb2b065d2478a5 (patch) | |
| tree | cf68f9a21a00232385ad8d51f8ccf128994ae269 /include | |
| parent | 782bfda5e796cb46d0e7be0dc882ff686d5ad2a2 (diff) | |
tinyalsa: add separate call for pcm prepare
Tinyalsa combines PREPARE and START calls to the driver in the pcm_start()
function. Typically, this is needed for making a driver allocating hardware
resources that are not related to a PCM stream.
Change-Id: Ic83fad784936bbebab28e8e425debd449182db88
Signed-off-by: Omair Mohammed Abdullah <omair.m.abdullah@linux.intel.com>
Signed-off-by: David Wagner <david.wagner@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-Tracking-BZ: 73509
Diffstat (limited to 'include')
| -rw-r--r-- | include/tinyalsa/asoundlib.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/tinyalsa/asoundlib.h b/include/tinyalsa/asoundlib.h index 3d20b94..8ba5aca 100644 --- a/include/tinyalsa/asoundlib.h +++ b/include/tinyalsa/asoundlib.h @@ -189,6 +189,8 @@ int pcm_mmap_begin(struct pcm *pcm, void **areas, unsigned int *offset, unsigned int *frames); int pcm_mmap_commit(struct pcm *pcm, unsigned int offset, unsigned int frames); +/* Prepare the PCM substream to be triggerable */ +int pcm_prepare(struct pcm *pcm); /* Start and stop a PCM channel that doesn't transfer data */ int pcm_start(struct pcm *pcm); int pcm_stop(struct pcm *pcm); |