From f41d6049d18694e8b3d938464432d0e51f671089 Mon Sep 17 00:00:00 2001
From: Chris J Arges <chris.j.arges@canonical.com>
Date: Wed, 12 Nov 2014 12:07:00 -0600
Subject: [PATCH] ALSA: usb-audio: Add private_data pointer to
 usb_mixer_elem_info

Add a private_data pointer to usb_mixer_elem_info to allow other mixer
implementations to extend the structure as necessary.

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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