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[ALSA] usb-audio: increase max buffer size

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USB generic driver
Increase the maximum PCM buffer size to 1 MB.  The USB driver doesn't
have any inherent buffer size limit, and big multichannel interfaces
may benefit from this.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
This commit is contained in:
Clemens Ladisch 2005-09-26 09:59:57 +02:00 committed by Jaroslav Kysela
parent 31ab9523ed
commit d31cbbfd80
1 changed files with 4 additions and 4 deletions
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8
sound/usb/usbaudio.c
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@ -1444,9 +1444,9 @@ static snd_pcm_hardware_t snd_usb_playback =
SNDRV_PCM_INFO_BATCH | SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER, SNDRV_PCM_INFO_BLOCK_TRANSFER,
.buffer_bytes_max = (256*1024), .buffer_bytes_max = 1024 * 1024,
.period_bytes_min = 64, .period_bytes_min = 64,
.period_bytes_max = (128*1024), .period_bytes_max = 512 * 1024,
.periods_min = 2, .periods_min = 2,
.periods_max = 1024, .periods_max = 1024,
}; };
@ -1458,9 +1458,9 @@ static snd_pcm_hardware_t snd_usb_capture =
SNDRV_PCM_INFO_BATCH | SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER, SNDRV_PCM_INFO_BLOCK_TRANSFER,
.buffer_bytes_max = (256*1024), .buffer_bytes_max = 1024 * 1024,
.period_bytes_min = 64, .period_bytes_min = 64,
.period_bytes_max = (128*1024), .period_bytes_max = 512 * 1024,
.periods_min = 2, .periods_min = 2,
.periods_max = 1024, .periods_max = 1024,
}; };