From mboxrd@z Thu Jan  1 00:00:00 1970
From: Clemens Ladisch <clemens@ladisch.de>
Subject: Re: Bad file descriptor : -EBADFD
Date: Wed, 23 Mar 2011 16:54:58 +0100
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To: Irfan Shaikh <irfan.shaikh@sasken.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>
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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.


Regards,
Clemens