From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 4 Nov 2014 13:02:40 +0000 (+0100)
Subject: ALSA: pcm: Add xrun_injection proc entry
X-Git-Tag: omap-for-v3.19/fixes-rc1~126^2~21^2~82^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2b30d411dbc6eddfb5b4f9afd5a2c57b6f4dd96c;p=pandora-kernel.git

ALSA: pcm: Add xrun_injection proc entry

This patch adds a new proc entry for PCM substreams to inject an
XRUN.  When a PCM substream is running and any value is written to its
xrun_injection proc file, the driver triggers XRUN.  This is a useful
feature for debugging XRUN and error handling code paths.

Note that this entry is enabled only when CONFIG_SND_PCM_XRUN_DEBUG is
set.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
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