From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932858Ab2JKBMi (ORCPT ); Wed, 10 Oct 2012 21:12:38 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:48486 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932125Ab2JKBMe (ORCPT ); Wed, 10 Oct 2012 21:12:34 -0400 X-Sasl-enc: clGhsxrxliJ6czukjmJr2oxJ+j5YQ5o91zIiyEpoOk7f 1349917953 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, David Henningsson , Takashi Iwai Subject: [ 080/120] ALSA: usb - disable broken hw volume for Tenx TP6911 Date: Thu, 11 Oct 2012 10:00:32 +0900 Message-Id: <20121011005841.147223867@linuxfoundation.org> X-Mailer: git-send-email 1.8.0.rc0.18.gf84667d In-Reply-To: <20121011005825.364610894@linuxfoundation.org> References: <20121011005825.364610894@linuxfoundation.org> User-Agent: quilt/0.60-2.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Henningsson commit c10514394ef9e8de93a4ad8c8904d71dcd82c122 upstream. While going through Ubuntu bugs, I discovered this patch being posted and a confirmation that the patch works as expected. Finding out how the hw volume really works would be preferrable to just disabling the broken one, but this would be better than nothing. Credit: sndfnsdfin (qawsnews) BugLink: https://bugs.launchpad.net/bugs/559939 Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/usb/mixer.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1247,6 +1247,13 @@ static int parse_audio_feature_unit(stru /* disable non-functional volume control */ master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); break; + case USB_ID(0x1130, 0xf211): + snd_printk(KERN_INFO + "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); + /* disable non-functional volume control */ + channels = 0; + break; + } if (channels > 0) first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize);