From 67e1daa0bb30eda6ec5add27c3abf4536030f5a6 Mon Sep 17 00:00:00 2001
From: Daniel Mack <daniel@caiaq.de>
Date: Mon, 31 May 2010 13:35:43 +0200
Subject: [PATCH] ALSA: usb-audio: clean up find_audio_control_unit()

Use a struct to parse the audio units, and return usable descriptors
for all types. There's no need to limit the result set, except for some
kind of sanity check.

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