From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lee Revell <rlrevell@joe-job.com>
Subject: Handling hardware error cleanly
Date: Sun, 19 Nov 2006 17:29:14 -0500
Message-ID: <1163975354.30651.15.camel@mindpipe>
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Cc: Takashi Iwai <tiwai@suse.de>
List-Id: alsa-devel@alsa-project.org

I have an ALSA driver that uses a copy() callback for playback, which in
turn schedules a workqueue to deliver the audio to the hardware.  In
certain conditions, writing the data to the hardware can fail.  From the
workqueue handler, how can I indicate to the ALSA middle layer that a
fatal error has occurred and playback must be terminated with -EIO?

Lee


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