[ALSA] virtuoso: restrict period time to less than 10 s

Add a constraint for the period time so that there are less than ten
seconds between interrupts so that ALSA does not assume that the device
is dead.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index 09a16e4..c4ad65a 100644 (file)
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -165,6 +165,12 @@ static int oxygen_open(struct snd_pcm_substream *substream,
                if (err < 0)
                        return err;
        }
+       if (channel == PCM_MULTICH) {
+               err = snd_pcm_hw_constraint_minmax
+                       (runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 0, 8192000);
+               if (err < 0)
+                       return err;
+       }
        snd_pcm_set_sync(substream);
        chip->streams[channel] = substream;