diff options
| author | Adrian Knoth <adi@drcomp.erfurt.thur.de> | 2015-02-10 11:33:50 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-06 14:52:50 -0800 |
| commit | b52ef4131235e82778f11aa790d8cfb1c9b74197 (patch) | |
| tree | 0cf0583137b2e1a6dae1d79675b7428e8338834c /sound | |
| parent | 42596d7999273d4d627c53b1a60b603d76a73abb (diff) | |
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 52d86af3ef2d..fcf91ee0328d 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -6114,6 +6114,9 @@ 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; } @@ -6188,6 +6191,9 @@ 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; } |