[alsa-devel] [PATCH] disable period wakeups

Jaroslav Kysela perex at perex.cz
Mon Nov 15 11:26:10 CET 2010

On Mon, 15 Nov 2010, Clemens Ladisch wrote:

> pl bossart wrote:
>> Here's the second set of patches based on feedback from Takashi,
>> Jaroslav and Clemens. Hope this is fine now.
> Committed, with fixed whitespace (your mailer or editor replaced tabs
> with spaces in all new lines), added back
> snd_pcm_hw_params_can_disable_period_wakeup(), and small changes.

The problem in the kernel side is that there is no ring buffer boundary 
check using system jiffies. Without this check, the actual implementation 
does not guarantee the consistency of hw_ptr.


Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

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