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| author | Adrian Knoth <adi@drcomp.erfurt.thur.de> | 2015-02-10 11:33:50 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2015-05-09 23:16:17 +0100 |
| commit | 7c21a3eadc4f794c7f9aaf86c1d2d5df5b8b6c89 (patch) | |
| tree | e6bb83158fb058449cc6f907055106e3a84d0054 /sound | |
| parent | ca1a95865fdcf092aafdd911beb9520c59c714c8 (diff) | |
| download | kernel_samsung_smdk4412-7c21a3eadc4f794c7f9aaf86c1d2d5df5b8b6c89.zip kernel_samsung_smdk4412-7c21a3eadc4f794c7f9aaf86c1d2d5df5b8b6c89.tar.gz kernel_samsung_smdk4412-7c21a3eadc4f794c7f9aaf86c1d2d5df5b8b6c89.tar.bz2 | |
ALSA: hdspm - Constrain periods to 2 on older cards
commit f0153c3d948c1764f6c920a0675d86fc1d75813e upstream.
RME RayDAT and AIO use a fixed buffer size of 16384 samples. With period
sizes of 32-4096, this translates to 4-512 periods.
The older RME cards have a variable buffer size but require exactly two
periods.
This patch enforces nperiods=2 on those cards.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/rme9652/hdspm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 19ee220..71a3d52 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -5966,6 +5966,9 @@ static int snd_hdspm_playback_open(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 64, 8192); + snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_PERIODS, + 2, 2); break; } @@ -6040,6 +6043,9 @@ static int snd_hdspm_capture_open(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 64, 8192); + snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_PERIODS, + 2, 2); break; } |