From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sender4-op-o15.zoho.com (sender4-op-o15.zoho.com [136.143.188.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB7CB30B51E; Sun, 1 Mar 2026 21:37:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.15 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772401077; cv=pass; b=MAxfRjL5fpzsq6StWXngFkmywyunw19gOaarCEKgkLtRGXGTjb8SgAefG2u4LGtwEIIYOmuD+AsGk7mf4/9eNUX1iatiIJwPYvxNj0Tz4V6uIMpJJNOFN9Tva2rvWOpKCbjL/EtL4ohsguAwmjiz/Ddub59BTx2dOc4qsPkHimI= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772401077; c=relaxed/simple; bh=NM9WorNUTYDvCgYuvOhOMqaKRtpEaQHw3gE18Ca9y7g=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=QTtiIPfS7LdtpD2DbtrARnQ/KXcBCzChITgDXGW0knO+NcU0kmQqPg5FUSti2D7C2PK+YiSXDRsx4iFxBAI80GusAM4v3XwfBTp08FOEyHGSkh9QiXcgbAZiY70MbmCYb/23mXvRFtl4gDpL1W8hp4BIcSLTfGqrRqeB4tnGPf8= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rong.moe; spf=pass smtp.mailfrom=rong.moe; dkim=pass (2048-bit key) header.d=rong.moe header.i=i@rong.moe header.b=ArknmnUm; arc=pass smtp.client-ip=136.143.188.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rong.moe Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rong.moe Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rong.moe header.i=i@rong.moe header.b="ArknmnUm" ARC-Seal: i=1; a=rsa-sha256; t=1772401054; cv=none; d=zohomail.com; s=zohoarc; b=AiHFJU/EEtfKo3kaCZGflgaiCW6Y7PMuP4Iflj5uxXPkos7WY1B3uHjLYeWIaeV2ZnCyiAVGNpl9WFweNLq59P/iOe+7S9gJ0evnM/fZ4hc/boZXUbqvwzOgl27/lKnjnehmBJOCrIdEG7bAl13xYqcDtR+nyrQD7S8phMgtCwo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772401054; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=YpXMZafJrVbcV4K0q7QwGW+t1sRBWv49tZIj9kK7sRE=; b=ni65CoLSPMx5t53krg6E16Fe72C+8Ok3/vnjpDObWxS3Pu0NYi55kCkwfmQvbhm6AqVkZ8TCt5XWJ1kaFDi6gbhStNd7Wff0lauFby2mMg0QY32zSbLvaSLmsADLiZUPb5CIqZf6/uprIn045t/84/MKexYdAeGrJSOE9upUBkg= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=rong.moe; spf=pass smtp.mailfrom=i@rong.moe; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1772401054; s=zmail2048; d=rong.moe; i=i@rong.moe; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To; bh=YpXMZafJrVbcV4K0q7QwGW+t1sRBWv49tZIj9kK7sRE=; b=ArknmnUmoNm2C2w0H+sSucaxMkThaULNIDk6dVpbowaCsFfuO+lanZvaeJyu4WQk NhettPPI9BUBgwBTlf7IwTl8IgNbhZxS21FaW1Jf1aA6O4AOScJClkQazN0GFUVSYh5 gebgkSpRZOtVDf7T78v1Jx7wwh9zkFqBwjAzLyXSEcb9burxdJiPl/VqXK9WZd4UTwp r6/fmUAotCPvTY56+31Jipy2QkrXCh5qJ6UMPd8YvG4w6LA2Msp1NHuw7eLKqaLOgsR hQ5C0nFFbABrfrrrr8eEH7moaz7Y+k7rvbkiwygXQpeOoZwPIppVi2bfD1ZpQ0c9jCd H4BiWKOspQ== Received: by mx.zohomail.com with SMTPS id 1772401053004351.32865877097856; Sun, 1 Mar 2026 13:37:33 -0800 (PST) From: Rong Zhang To: Jaroslav Kysela , Takashi Iwai Cc: Rong Zhang , Jonathan Corbet , Shuah Khan , Cryolitia PukNgae , Arun Raghavan , linux-sound@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Icenowy Zheng Subject: [PATCH 0/9] ALSA: usb-audio: Add quirks for linear volume devices and deconflict VID Date: Mon, 2 Mar 2026 05:37:16 +0800 Message-ID: <20260301213726.428505-1-i@rong.moe> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ZohoMailClient: External Some quirky devices tune their volume by linearly tuning the voltage level (linear volume). In other words, such devices has a linear TLV mapping of DECLARE_TLV_DB_LINEAR(scale, TLV_DB_GAIN_MUTE, 0). The series mainly adds quirk flags MIXER_PLAYBACK_LINEAR_VOL and MIXER_CAPTURE_LINEAR_VOL to represent this case respectively for playback and capture mixers. Afterward, apply these quirk flags on them. Some MV-SILICON devices with these quirks also have another quirk: VID conflicts with Focusrite Novation (0x1235). Hence, add support for string-descriptor-based quirk table entries and define an entry for MV- SILICON to deconflict them. Some improvements to the logic of volume range checks is also included in the series to help identify quirky devices with linear volume. Rong Zhang (9): Revert "ALSA: usb: Increase volume range that triggers a warning" ALSA: usb-audio: Add helper function for volume range checks ALSA: usb-audio: Improve volume range checks ALSA: usb-audio: Support string-descriptor-based quirk table entry ALSA: usb-audio: Deconflict VID between Focusrite Novation & MV-SILICON ALSA: doc: Add doc for QUIRK_FLAG_SKIP_IFACE_SETUP of snd-usb-audio ALSA: usb-audio: Add QUIRK_FLAG_MIXER_{PLAYBACK,CAPTURE}_LINEAR_VOL ALSA: usb-audio: Add linear volume quirk for Hotone Audio Pulze Mini ALSA: usb-audio: Apply linear volume quirk on MV-SILICON devices Documentation/sound/alsa-configuration.rst | 11 +++ sound/usb/mixer.c | 84 ++++++++++++++++---- sound/usb/mixer_quirks.c | 56 ++++++++++++++ sound/usb/quirks.c | 89 ++++++++++++++++++++++ sound/usb/usbaudio.h | 12 +++ 5 files changed, 237 insertions(+), 15 deletions(-) base-commit: 39c633261414f12cb533a8b802ee57e2d2e3c482 -- 2.51.0