From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 3 Mar 2009 16:00:15 +0000 (+0100)
Subject: ALSA: Rewrite hw_ptr updaters
X-Git-Tag: v2.6.30-rc1~676^2~23^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed3da3d9a0ef13c6fe1414ec73c9c1be12747b62;p=pandora-kernel.git

ALSA: Rewrite hw_ptr updaters

Clean up and improve snd_pcm_update_hw_ptr*() functions.

snd_pcm_update_hw_ptr() tries to detect the unexpected hwptr jumps
more strictly to avoid the position mess-up, which often results in
the bad quality I/O with pulseaudio.

The hw-ptr skip error messages are printed when xrun proc is set to
non-zero.

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