From: Adrian Knoth <adi@xxxxxxxxxxxxxxxxxxxxx> 3.4.108-rc1 review patch. If anyone has any objections, please let me know. ------------------ 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@xxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Zefan Li <lizefan@xxxxxxxxxx> --- sound/pci/rme9652/hdspm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index bc030a2..0627ffe 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -6042,6 +6042,12 @@ 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); + snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_PERIODS, + 2, 2); break; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html