[alsa-devel] Bad file descriptor : -EBADFD

Irfan Shaikh irfan.shaikh at sasken.com
Wed Mar 23 18:19:47 CET 2011

Hi Clemens,

Thanks for your reply

It is in PREPARED state at time of configuration.
But later when i use snd_pcm_writei first returns -11, then -77 then continous -EBADFD infinitely

To fix this i close my playback device and reconfigure it when above happens, then plays fine...This is fix. but not the solution.

Is there any other way of comming out of EBADFD to normal PREPARE state.


From: Clemens Ladisch [clemens at ladisch.de]
Sent: Wednesday, March 23, 2011 9:24 PM
To: Irfan Shaikh
Cc: alsa-devel at alsa-project.org
Subject: Re: [alsa-devel] Bad file descriptor : -EBADFD

Irfan Shaikh wrote:
> I have used following check and it is success.
>  if (snd_pcm_hw_params(alsaParams->playback_handle,                                  \
>                           alsaParams->hwparams_playback) < 0)

Check the device's current state with snd_pcm_state(); it should be PREPARED.


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