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| author | Jaroslav Kysela <perex@perex.cz> | 2007-12-13 12:19:42 +0300 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 19:29:31 +0300 |
| commit | b751eef1fdffca5532344285f2fad0c60d2f0158 (patch) | |
| tree | d504104c6315a8abc4b3f657f8f4828fb55a8795 /sound/core/pcm_lib.c | |
| parent | 25543fa785a32ce22e7374ba403eb6d38854d037 (diff) | |
| download | linux-b751eef1fdffca5532344285f2fad0c60d2f0158.tar.xz | |
[ALSA] Use posix clock monotonic for PCM and timer timestamps
We need an accurate and continuous (monotonic) time sources to do
accurate synchronization among more timing sources. This patch allows
to enable monotonic timestamps for ALSA PCM devices and enables monotonic
timestamps for ALSA timer devices.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/core/pcm_lib.c')
| -rw-r--r-- | sound/core/pcm_lib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 93d7ca502730..db3d7e934ec3 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -188,7 +188,7 @@ static inline int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *subs snd_pcm_sframes_t delta; if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_MMAP) - getnstimeofday((struct timespec *)&runtime->status->tstamp); + snd_pcm_gettime(runtime, (struct timespec *)&runtime->status->tstamp); pos = snd_pcm_update_hw_ptr_pos(substream, runtime); if (pos == SNDRV_PCM_POS_XRUN) { xrun(substream); |