From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lars-Peter Clausen <lars@metafoo.de>
Subject: Re: [RFC v2 PATCH 1/1] ASoC: soc-core: symmetry
 checking for each DAIs separately
Date: Thu, 01 Sep 2011 21:32:27 +0200
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To: Timur Tabi <timur@freescale.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>, "s.hauer@pengutronix.de" <s.hauer@pengutronix.de>, "broonie@opensource.wolfsonmicro.com" <broonie@opensource.wolfsonmicro.com>, "w.sang@pengutronix.de" <w.sang@pengutronix.de>, Dong Aisheng-B29396 <B29396@freescale.com>, Liam Girdwood <lrg@ti.com>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>
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On 09/01/2011 08:58 PM, Timur Tabi wrote:
> Lars-Peter Clausen wrote:
>> Without the patch for example 'aplay -r 8000 ... & arecrod -r 16000 ...' would
>> result in playback running twice as fast as it is supposed to.
> 
> I'm not sure I can reproduce the problem.  Executing the above command either
> plays audio at the proper rate (with or without your patch), doesn't play
> anything at all (it just sits there), or gives me this error message:
> 
> soc-audio soc-audio: set sample size in capture stream first
> 
> (sometimes it says "playback" instead of "capture").

Try to add a small delay between the two commands. e.g. 'aplay -r 8000 ... &
sleep 1; arecrod -r 16000 ...'. And of course the DAIs need to be configured to
be asynchronous, otherwise you'll of course catch the error in the fsl_ssi driver.