From nobody Fri Oct 2 14:03:11 2026 Received: from mail-244123.protonmail.ch (mail-244123.protonmail.ch [109.224.244.123]) (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 D03171A3AB0 for ; Fri, 31 Jul 2026 02:33:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=109.224.244.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785465231; cv=none; b=kiDhiu7Guu4PrdYChfBYdoniigHo9c97QXoLeWPL1edhQ9qqoXSUx3Zyr64tugcKEuLlP8nckWiaY+QwmkkJDQhEcp0b7VxjByApTfLAFIUso/NilsNezKRBqT61tXpU8JxYGoZkNH7oVgtabeXY6l6YditYT+0SQL1JL4oDmkw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785465231; c=relaxed/simple; bh=7Z2GEnnawKZYxIFs3zFhkh42b0aAZapO9ecZWQohvvc=; h=Date:To:From:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=unfkayZNkOS4nOYwh8DL2wYntC0CB+ojQnyTw6HBYKFv7xBJ6lpRZPH5toJDpNPQTfJhNSudTJNL7YlzE9jou3YTOyqEL4twhRZWELWrHAs5CfiabWZ3yIKFcNezViOi/d7K5UiGxyb2me7NSg9UmXEsI/XvH5rKtxrrHs6xmr8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=proton.me; spf=pass smtp.mailfrom=proton.me; dkim=pass (2048-bit key) header.d=proton.me header.i=@proton.me header.b=icKz5P1h; arc=none smtp.client-ip=109.224.244.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=proton.me Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=proton.me Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=proton.me header.i=@proton.me header.b="icKz5P1h" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=proton.me; s=protonmail; t=1785465217; x=1785724417; bh=L7/jYe59NXPzACSBEsE53x2q2qa8qaj2G11iRT3CbYA=; h=Date:To:From:Cc:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=icKz5P1h7nW9H+inDxaV0soP7UyZAQNL5OnxJUI72YGTaMAAMWI72+hqtPMphIkhj 1DH8m2C2FP8btzkFOP90or13EL2BL9VEO3SyJkldBK3lP1/zf7pj12wv5VqsNxdva0 aiEnuFhApHJYiYo2H/2MlbsF/5TWw97egwoPkU0fqzWDe/FW1LuitHJsm48n5Vw+Sq XsTW8qTkhpS8ptwAsj3uJFhpARZylPBYeD8weIEae6pGFOWbBG1f75ELCQhiNL3Fzc INYzBq6A3aw8v3jm0CbWAOKDimyuGFxzIubc6th8dwHlWtDn4D4U3FH3S28xEyJwI+ zXUzDY7S3lFHQ== Date: Fri, 31 Jul 2026 02:33:32 +0000 To: Jaroslav Kysela , Takashi Iwai From: Brian van den Berg Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, Antheas Kapenekakis , Brian van den Berg Subject: [PATCH v1] ALSA: usb-audio: Add quirk for Logitech PRO X 2 LIGHTSPEED Message-ID: <20260731023307.28510-1-faxuser@proton.me> Feedback-ID: 57639451:user:proton X-Pm-Message-ID: 3bcda2a556bd1191bb8a04469979b80c5f867dbb Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The UAC mixer of Logitech PRO X 2 LIGHTSPEED works fine except that its volume GET_CUR method returns sticky values. Since commit 86aa1ea1f15c ("ALSA: usb-audio: Do not expose sticky mixers"), the sticky check considers the mixer to be sticky and unnecessarily disables the mixer. Add QUIRK_FLAG_MIXER_GET_CUR_BROKEN for Logitech PRO X 2 LIGHTSPEED (046d:0af7) to address this. Compiled and tested on Signed-off-by: Brian van den Berg --- Output with quirk enabled: usb 3-2.1: New USB device found, idVendor=3D046d, idProduct=3D0af7, bcdDe= vice=3D 1.00 usb 3-2.1: New USB device strings: Mfr=3D1, Product=3D2, SerialNumber=3D3 usb 3-2.1: Product: PRO X 2 LIGHTSPEED usb 3-2.1: Manufacturer: Logitech usb 3-2.1: SerialNumber: 0000000000000000 input: Logitech PRO X 2 LIGHTSPEED Consumer Control as /devices/pci0000:0= 0/0000:00:08.1/0000:07:00.4/usb3/3-2/3-2.1/3-2.1:1.3/0003:046D:0AF7.0003/in= put/input6 input: Logitech PRO X 2 LIGHTSPEED as /devices/pci0000:00/0000:00:08.1/00= 00:07:00.4/usb3/3-2/3-2.1/3-2.1:1.3/0003:046D:0AF7.0003/input/input7 input: Logitech PRO X 2 LIGHTSPEED as /devices/pci0000:00/0000:00:08.1/00= 00:07:00.4/usb3/3-2/3-2.1/3-2.1:1.3/0003:046D:0AF7.0003/input/input8 usb 3-2.1: 2:0: broken mixer GET_CUR (-18944/0/256 =3D> -2662) usb 3-2.1: 6:0: broken mixer GET_CUR (-18944/0/256 =3D> 0) --- sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 31cbe383ae65..ff8adcf76a7b 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2249,6 +2249,8 @@ static const struct usb_audio_quirk_flags_table quirk= _flags_table[] =3D { DEVICE_FLG(0x046d, 0x0a8f, /* Logitech H390 headset */ QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_MIXER_PLAYBACK_MIN_MUTE), + DEVICE_FLG(0x046d, 0x0af7 /* Logitech PRO X 2 LIGHTSPEED */ + QUIRK_FLAG_MIXER_GET_CUR_BROKEN), DEVICE_FLG(0x0499, 0x1506, /* Yamaha THR5 */ QUIRK_FLAG_GENERIC_IMPLICIT_FB), DEVICE_FLG(0x0499, 0x1509, /* Steinberg UR22 */ base-commit: e7ae89a0c97ce2b68b0983cd01eda67cf373517d --=20 2.55.0