Aggarwal, Anuj wrote:
-----Original Message-----
From: Mark Brown [mailto:broo...@opensource.wolfsonmicro.com]
Sent: Wednesday, August 26, 2009 6:34 PM
To: Aggarwal, Anuj
Cc: linux-omap@vger.kernel.org; alsa-de...@alsa-project.org
Subject: Re: [alsa-devel] Audio capture not working with AIC23/McBSP1 on
OMAP3517
On Wed, Aug 26, 2009 at 06:30:52PM +0530, Aggarwal, Anuj wrote:
I am trying to capture audio through LineIn on my OMAP3517 EVM, using
AIC23 codec and McBSP1, and getting the following error:
arecord: pcm_read:1529: read error: Input/output error
That suggests that DMA isn't happening - might be worth checking to see
that clocks are being generated properly.
I am able to see the bit clock and frame sync coming properly.
Playback is working fine using the same combination.
I have tried using another instance of AIC23 codec which uses McBSP2
and both playback & capture works fine there.
Has anyone faced this issue before? Any suggestions?
Which kernel are you using? There are rather a lot of McBSP changes
queued up for 2.6.32. If this ever worked in the past a git bisect
might be interesting.
I am on 2.6.31-rc5. I have to check whether the new patches fix
anything related to this.
Not having the corect pinmux settings will also cause this issue as I
found trying to get McBSP3 working.
Graeme
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