From: Daniel Mack <daniel@caiaq.de>
Date: Mon, 31 May 2010 11:35:37 +0000 (+0200)
Subject: ALSA: usb-audio: support partially write-protected UAC2 controls
X-Git-Tag: v2.6.35-rc2~41^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6a3325913efbe35a10e87fd3e9c3ce621fd32c7;p=pandora-kernel.git

ALSA: usb-audio: support partially write-protected UAC2 controls

So far, UAC2 controls are marked read-only if any of the channels are
marked read-only in the descriptors. Change this behaviour and

 - mark them writeable unless all channels are read-only
 - store the read-only mask in usb_mixer_elem_info and
 - check the mask again in set_cur_mix_value(), and bail out for
   write-protected channels.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

Reading git-diff-tree failed