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authorClemens Ladisch <clemens@ladisch.de>2005-09-05 04:31:05 -0400
committerJaroslav Kysela <perex@suse.cz>2005-09-12 04:41:10 -0400
commit49045d3d4dc7c43310b1fca693e29fcdbe68faba (patch)
tree88350108174f69eaca455c79df3a718c3f3b7333 /sound/usb
parent025cd2f6b1624f536d4df564add3d13ea5022f53 (diff)
[ALSA] usb-audio: add SNDRV_PCM_INFO_BATCH flag
USB generic driver Add the SNDRV_PCM_INFO_BATCH flag to the PCM hardware information to indicate that the driver uses double buffering. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/usbaudio.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index bfbec5876659..da22f25d4efd 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -1439,9 +1439,11 @@ static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
1439 1439
1440static snd_pcm_hardware_t snd_usb_playback = 1440static snd_pcm_hardware_t snd_usb_playback =
1441{ 1441{
1442 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1442 .info = SNDRV_PCM_INFO_MMAP |
1443 SNDRV_PCM_INFO_BLOCK_TRANSFER | 1443 SNDRV_PCM_INFO_MMAP_VALID |
1444 SNDRV_PCM_INFO_MMAP_VALID), 1444 SNDRV_PCM_INFO_BATCH |
1445 SNDRV_PCM_INFO_INTERLEAVED |
1446 SNDRV_PCM_INFO_BLOCK_TRANSFER,
1445 .buffer_bytes_max = (256*1024), 1447 .buffer_bytes_max = (256*1024),
1446 .period_bytes_min = 64, 1448 .period_bytes_min = 64,
1447 .period_bytes_max = (128*1024), 1449 .period_bytes_max = (128*1024),
@@ -1451,9 +1453,11 @@ static snd_pcm_hardware_t snd_usb_playback =
1451 1453
1452static snd_pcm_hardware_t snd_usb_capture = 1454static snd_pcm_hardware_t snd_usb_capture =
1453{ 1455{
1454 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1456 .info = SNDRV_PCM_INFO_MMAP |
1455 SNDRV_PCM_INFO_BLOCK_TRANSFER | 1457 SNDRV_PCM_INFO_MMAP_VALID |
1456 SNDRV_PCM_INFO_MMAP_VALID), 1458 SNDRV_PCM_INFO_BATCH |
1459 SNDRV_PCM_INFO_INTERLEAVED |
1460 SNDRV_PCM_INFO_BLOCK_TRANSFER,
1457 .buffer_bytes_max = (256*1024), 1461 .buffer_bytes_max = (256*1024),
1458 .period_bytes_min = 64, 1462 .period_bytes_min = 64,
1459 .period_bytes_max = (128*1024), 1463 .period_bytes_max = (128*1024),