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[ALSA] Remove PCM sleep_min and tick

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The 'tick' in PCM is set (again) via sw_params.  And, nobody uses
this feature at all except for a command line option of aplay.
(This is literally 'nobody', as I checked alsa-lib API calls in all
 programs in major distros.)
Above all, if we need finer wake-ups for the position update, it's
basically an issue that the driver should solve, not tuned by each
application.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Takashi Iwai
2008-01-08 18:09:57 +01:00
committed by Jaroslav Kysela
parent 130755108b
commit 31e8960b35
5 changed files with 3 additions and 159 deletions
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sound/core/oss/pcm_oss.c
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@@ -985,7 +985,6 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
sw_params->stop_threshold = runtime->buffer_size;
sw_params->tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
sw_params->period_step = 1;
sw_params->sleep_min = 0;
sw_params->avail_min = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
1 : runtime->period_size;
if (atomic_read(&substream->mmap_count) ||