[alsa-devel] [PATCH 08/21] Only set sync if card supports hardware stream grouping.

linux at audioscience.com linux at audioscience.com
Thu Dec 22 01:38:38 CET 2011


From: Eliot Blennerhassett <eblennerhassett at audioscience.com>

Signed-off-by: Eliot Blennerhassett <eblennerhassett at audioscience.com>
---
 sound/pci/asihpi/asihpi.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index 1099a16..fff7c50 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -1033,8 +1033,10 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 					SNDRV_PCM_INFO_MMAP |
 					SNDRV_PCM_INFO_MMAP_VALID;
 
-	if (card->support_grouping)
+	if (card->support_grouping) {
 		snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;
+		snd_pcm_set_sync(substream);
+	}
 
 	/* struct is copied, so can create initializer dynamically */
 	runtime->hw = snd_card_asihpi_playback;
@@ -1051,8 +1053,6 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
 		card->update_interval_frames * 2, UINT_MAX);
 
-	snd_pcm_set_sync(substream);
-
 	snd_printdd("playback open\n");
 
 	return 0;
-- 
1.7.0.4



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