From: Clemens Ladisch <clemens@ladisch.de>
Date: Thu, 1 May 2014 10:20:22 +0000 (+0200)
Subject: ALSA: usb-audio: work around corrupted TEAC UD-H01 feedback data
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~202^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7040b6d1febfdbd9c1595efb751d492cd2503f96;p=pandora-kernel.git

ALSA: usb-audio: work around corrupted TEAC UD-H01 feedback data

The TEAC UD-H01 firmware sends wrong feedback frequency values, thus
causing the PC to send the samples at a wrong rate, which results in
clicks and crackles in the output.

Add a workaround to detect and fix the corruption.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
[mick37@gmx.de: use sender->udh01_fb_quirk rather than
 ep->udh01_fb_quirk in snd_usb_handle_sync_urb()]
Reported-and-tested-by: Mick <mick37@gmx.de>
Reported-and-tested-by: Andrea Messa <andr.messa@tiscali.it>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

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