[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>
This commit is contained in:
Родитель
025cd2f6b1
Коммит
49045d3d4d
|
@ -1439,9 +1439,11 @@ static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream)
|
|||
|
||||
static snd_pcm_hardware_t snd_usb_playback =
|
||||
{
|
||||
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
||||
SNDRV_PCM_INFO_BLOCK_TRANSFER |
|
||||
SNDRV_PCM_INFO_MMAP_VALID),
|
||||
.info = SNDRV_PCM_INFO_MMAP |
|
||||
SNDRV_PCM_INFO_MMAP_VALID |
|
||||
SNDRV_PCM_INFO_BATCH |
|
||||
SNDRV_PCM_INFO_INTERLEAVED |
|
||||
SNDRV_PCM_INFO_BLOCK_TRANSFER,
|
||||
.buffer_bytes_max = (256*1024),
|
||||
.period_bytes_min = 64,
|
||||
.period_bytes_max = (128*1024),
|
||||
|
@ -1451,9 +1453,11 @@ static snd_pcm_hardware_t snd_usb_playback =
|
|||
|
||||
static snd_pcm_hardware_t snd_usb_capture =
|
||||
{
|
||||
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
||||
SNDRV_PCM_INFO_BLOCK_TRANSFER |
|
||||
SNDRV_PCM_INFO_MMAP_VALID),
|
||||
.info = SNDRV_PCM_INFO_MMAP |
|
||||
SNDRV_PCM_INFO_MMAP_VALID |
|
||||
SNDRV_PCM_INFO_BATCH |
|
||||
SNDRV_PCM_INFO_INTERLEAVED |
|
||||
SNDRV_PCM_INFO_BLOCK_TRANSFER,
|
||||
.buffer_bytes_max = (256*1024),
|
||||
.period_bytes_min = 64,
|
||||
.period_bytes_max = (128*1024),
|
||||
|
|
Загрузка…
Ссылка в новой задаче