[alsa-devel] Problem with mplayer and OSS on at91sam9g20(kernel 2.6.30)

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Sep 25 16:28:37 CEST 2009

On 25 Sep 2009, at 00:03, Clemens Ladisch <clemens at ladisch.de> wrote:

> Mark Brown wrote:
>> I'd expect it's getting upset because it's being called with an
>> invalid rate (OSS emulation calls hw_params with partially  
>> initialised
>> parameters)
> But even the uninitialized parameters conform to the constraints that
> were set by the driver, so they should never be invalid.

ASoC drivers, particularly ones doing manual clocking like this one,  
don't always express their full constraints to the application (in  
some cases it'd be far too hard).

> Sedji, try running mplayer with -v, this should give more log messages
> with the parameters that mplayer is trying to set.
> Best regards,
> Clemens

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