[alsa-devel] Channel swapping issue on TI OMAP3/TWL4030

Jarkko Nikula jhnikula at gmail.com
Sun Feb 13 11:20:39 CET 2011

On Sun, 13 Feb 2011 09:48:00 +0000
<peter.ujfalusi at nokia.com> wrote:

> > > We are using a customized TI OMAP3 with TWL4030, similar to OMAP3EVM
> > > board.  We noticed occasionally (after bring up few hours) the mic
> > > channel  audio is swapped.  Has anyone seen similar problem? Any
> > > suggestion where the problem might be?
> > >
> > Is this with recent kernels? There were this channel swapping problem
> > before but it got fixed by Eero Nurkkala for the 2.6.32 kernel by
> > following commits:
> This is something different.
> The channel swapping/shifting issue was affecting the playback
> stream only.
Hmm.. could be. Also IRCC before the swapping was quite frequent.
Especially during the stream startup time but I think also sometimes
while playback was running? This is infrequent but happens anyway.


More information about the Alsa-devel mailing list