From: =?koi8-r?B?4s/Ky88g7cHL08nN?= Subject: [PATCH] Fix invalid volume resolution for Logitech HD Webcam C525 Date: Wed, 07 Aug 2013 23:24:46 +0400 Message-ID: <80181375903486@web11g.yandex.ru> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from forward19.mail.yandex.net (forward19.mail.yandex.net [95.108.253.144]) by alsa0.perex.cz (Postfix) with ESMTP id 95509265603 for ; Wed, 7 Aug 2013 21:24:48 +0200 (CEST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org, linux-usb@vger.kernel.org Cc: stable@vger.kernel.org List-Id: alsa-devel@alsa-project.org From: Maksim Boyko Add the volume control quirk for avoiding the kernel warning for Logitech HD Webcam C525. The similar patch was previously reported for Logitech HD Webcam C310 (see 36691e1be6ec551eef4a5225f126a281f8c051c2). --- linux-3.10.5-orig/sound/usb/mixer.c 2013-08-04 12:51:49.000000000 +0400 +++ linux-3.10.5/sound/usb/mixer.c 2013-08-06 21:12:42.274197287 +0400 @@ -888,6 +888,7 @@ case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ + case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ case USB_ID(0x046d, 0x0991): /* Most audio usb devices lie about volume resolution. * Most Logitech webcams have res = 384.