From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Trent Piepho <tpiepho@gmail.com>
Cc: Ramesh Babu <ramesh.babu@linux.intel.com>,
alsa-devel@alsa-project.org, Liam Girdwood <lrg@ti.com>
Subject: Re: ASoC:Question rate constraint between the dais
Date: Fri, 16 Mar 2012 19:25:16 +0000 [thread overview]
Message-ID: <20120316192513.GJ3158@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <CA+7tXijgsT3uitVa-=VLmKY2ubQpgff0hkKjA5jz6QCFp9_PiA@mail.gmail.com>
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On Thu, Mar 15, 2012 at 05:28:13PM -0400, Trent Piepho wrote:
> There is a race when the constraints change dynamically. See the
> fsl_ssi.c driver and the sample size constraint in synchronous mode.
This is just a limitation of the ALSA ABI - there's nothing we can do
about it without changing the userspace interface so we just have to
live with it and error out if an application ever manages to hit the
race and pick something incompatible with other active streams (note
that the symmetric rates support has a dev_warn() complaining about
hitting the race).
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next prev parent reply other threads:[~2012-03-16 19:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-15 9:53 ASoC:Question rate constraint between the dais Ramesh Babu
2012-03-15 17:53 ` Mark Brown
2012-03-15 21:28 ` Trent Piepho
2012-03-16 19:25 ` Mark Brown [this message]
2012-03-16 20:00 ` Lars-Peter Clausen
2012-03-17 11:41 ` Mark Brown
2012-03-17 13:00 ` Clemens Ladisch
[not found] ` <9DF50024A2F6A5439EBFE2E74F4E9198055254@BGSMSX101.gar.corp.intel.com>
2012-03-16 10:05 ` Omair Mohammed Abdullah
2012-03-16 19:22 ` Mark Brown
2012-03-16 22:01 ` Trent Piepho
2012-03-17 11:48 ` Mark Brown
2012-03-17 19:49 ` Trent Piepho
2012-03-17 20:31 ` Mark Brown
2012-03-18 6:22 ` Jassi Brar
2012-03-18 21:27 ` Mark Brown
2012-03-19 16:12 ` James Courtier-Dutton
2012-03-19 16:32 ` Mark Brown
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