From patchwork Mon Aug 10 13:31:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai-Heng Feng X-Patchwork-Id: 11707407 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EDEE813B1 for ; Mon, 10 Aug 2020 13:32:28 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E8F2F206E9 for ; Mon, 10 Aug 2020 13:32:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="mGM31Y0a" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E8F2F206E9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=canonical.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id D03D215F2; Mon, 10 Aug 2020 15:31:37 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz D03D215F2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1597066345; bh=hXDHYACO4grhKhALcKtYFeQ7GUaxjUV7PegPtPEYIf0=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=mGM31Y0aKTIIGvko8Y3rUlNeDQaU4oaZBl/sYCBoZOhiVlUbCxKnqRxti9PGAiqfS zQOYbGkQOzo0CZrvaVdlBVq2hKsSobeuot0ocZqxde5r1H6M189ApvAv8NlDHeLgOM TvJtyU0w4HoZZ3Tzro8wTRO4smgu8EPXL4hvljgg= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 56F5CF800BC; Mon, 10 Aug 2020 15:31:37 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 6692EF8022B; Mon, 10 Aug 2020 15:31:34 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: *** X-Spam-Status: No, score=3.0 required=5.0 tests=AC_FROM_MANY_DOTS, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 05E11F800BC for ; Mon, 10 Aug 2020 15:31:27 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 05E11F800BC Received: from 61-220-137-37.hinet-ip.hinet.net ([61.220.137.37] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1k57tQ-000489-AE; Mon, 10 Aug 2020 13:31:12 +0000 From: Kai-Heng Feng To: tiwai@suse.com Subject: [PATCH] ALSA: usb-audio: Disable Lenovo P620 Rear line-in volume control Date: Mon, 10 Aug 2020 21:31:06 +0800 Message-Id: <20200810133108.31580-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.17.1 Cc: "moderated list:SOUND" , Andrew Oakley , open list , Chris Boyle , Kai-Heng Feng , "Alexander A. Klimov" X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" The USB device (0x17aa:0x1046) that support Lenovo P620 rear panel line-in claim to support volume control, but it doens't seem to have an AMP, so when line-in volume lowers below 80, nothing gets recorded anymore. Disable the volume control to workaround the issue. Signed-off-by: Kai-Heng Feng --- sound/usb/mixer_maps.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index c369c81e74c4..5b43e9e40e49 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -371,6 +371,7 @@ static const struct usbmix_name_map asus_rog_map[] = { }; static const struct usbmix_name_map lenovo_p620_rear_map[] = { + { 19, NULL, 2 }, /* FU, Volume */ { 19, NULL, 12 }, /* FU, Input Gain Pad */ {} };