Re: Problem with M5455 card

[Volker Schroer <dl1ksv@gmx.de>]

>> .
>>
>> I set the card to FLOAT_LE format.
>>     
>
> What did you set exactly?  Set hw_params calls with format = FLOAT_LE
> from application? 
>   
Yes, this is my .asoundrc
pcm.LinPSK_card {
        type hw
        card M5455
        }
pcm.LinPSK {
        type plug
        slave.pcm LinPSK_card
}
 and I open LinPSK.
>> If I read the samples with snd_pcm_readi, I get invalid values ( 10*e34 
>> ) from time to time, although  the result code of readi does not signal 
>> any errors.
>>
>> Is there a way to check if the read values  are valid inside the driver 
>> ? I think, there is a problem inside the driver. Using a delta 44 
>> soundcard, the problem is gone.
>>     
>
> I guess it's rather a conincidence that it worked with another card.
> Or, possibly, conversion between S16 and float in alsa-lib plugin
> might be broken.
>
>   
 Well, but not all samples contain bad values. Only after some times 
some bad values appear.


Volker


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