[alsa-devel] ALSA underruns for S32_LE format

[Jassi Brar]

On Mon, Aug 22, 2011 at 11:51 AM, kuldeep ghan <ghankp at gmail.com> wrote:
>> >  Thanks Jassi, I dont my System is too slow, I have dual core processor,
>> > 1.5GHz. no CPU consuming process running on it.
>> It sure is not slow. Most probably I can't help anyways.
>>
>> >  I Shall confirm if it does not support S32_LE.. Is  there any means by
>> > which I can confirm the same without
>> >  going through Codec Driver??
>> Generally, if the following works fine
>>  $ speaker-test -Dhw -c 2 -t sine -f 200 -r 48000 -F S32_LE
>
> Speaker-test mentioned above results into write error -32. I tried googling
> it but did not get the right reason yet.
> what does the write error -32. error imply?
> #  speaker-test -Dhw -c 2 -t sine -f 200 -r 48000 -F S32_LE
> speaker-test 1.0.23
> Playback device is hw
> Stream parameters are 48000Hz, S32_LE, 2 channels
> Sine wave rate is 200.0000Hz
> Rate set to 48000Hz (requested 48000Hz)
> Buffer size range from 1024 to 6144
> Period size range from 512 to 3072
> Using max buffer size 6144
> Periods = 4
> was set period_size = 3072
> was set buffer_size = 6144
>  0 - Front Left
> Write error: -32,Broken pipe
> Write error: -32,Broken pipe
> Write error: -32,Broken pipe
> Write error: -32,Broken pipe

I am tempted to bet on driver being broken for S32_LE.