From nobody Fri Oct 2 14:02:59 2026 Received: from mail-106121.protonmail.ch (mail-106121.protonmail.ch [79.135.106.121]) (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 60E54345EB1; Fri, 31 Jul 2026 03:13:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=79.135.106.121 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785467601; cv=none; b=TQKsWysrPygJTPdS4fDorggrMBX+EGrBzKNN4yE7MxU/SgC+73ydQ7vA0ZvaFA141xFzoM6Gc6yo8CwH2fKJj2VRyI//mnWWW1vQPPnlfwAIJQdTSl/0P1tzEE2Z1d9M9RuX0FAnDjuTCsbF/X6Fkn/N9q9Mq6bYscD4UOXeahQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785467601; c=relaxed/simple; bh=toYmV8zpKp77kUxdW+RbxggdvZU+3eVFaWIRCSX/hLY=; h=Date:To:From:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=dQrXU0pOgIoEA4zn32+Wb6jL+vIkCBvc539dydRu+O4d0Cn9GyuWAUnRxFsYYnsFiRM9XFMPhfpsZI2eV5r52t14k+0tvfw6/H13H40VljRo3ev9Wr9QIlAkwTsNIUjBaWEoE+gjiGMcqbgc5Z9HlN6UlVi5OMutBrnXK0Iivb8= 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=O5ZknlWa; arc=none smtp.client-ip=79.135.106.121 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="O5ZknlWa" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=proton.me; s=protonmail; t=1785467589; x=1785726789; bh=ftCbu5v9Jx7xSz+LUJDVMw/5o9UNdb6nUjSM9X6ChuE=; h=Date:To:From:Cc:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=O5ZknlWaZ708WQrpw0COQ0VAhHCPQ+50Fs7OM2W91sZtZXDPz4ugaY/GRY0ayPztN jSKeZeO1GtBrPs9vGiuL6FIp3C/a/IshHhytcaS1aC9tpNE2AZhVOR+a1Zk/vQssA8 St1i31sz3s8yc/lUNomCVltZy+A6rI6k75++EY7iBNLLAJqK4vFs8MxFBu7Bpa6mpQ jIXaPvs8pSyn18OWK31MWbKG8DyZRnSF/Q8fHwduELXyuicdAai/uRdibFyM2h/+Ky qBs/Rk57maH02pWqDGVDMQl7cn+FcOzGWcPSjKPJ2GAJZ4OGfZ4lpqez0+xg0BECih gM8F9tjnN6gIg== Date: Fri, 31 Jul 2026 03:13:05 +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 v4] ALSA: usb-audio: Add quirk for Logitech PRO X 2 LIGHTSPEED Message-ID: <20260731031253.38976-1-faxuser@proton.me> Feedback-ID: 57639451:user:proton X-Pm-Message-ID: f1de7e48e7864830072f4fe965422bea68a01aa3 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 7.2-rc5 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) Changes in v2: - Commmit message missed the version I compiled and tested it on. - I forgot to add v2 to the patch. Changes in v3: - I included the wrong patchfile in which I forgot a comma. I did compile the correct fix but just to be sure I recompiled and tested the change again. Changes in v4: I don't know how that file deletion was added to the patch. I removed it, recompiled and tested again. Hopefully this is okay now. --- sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 0de7c9d94259..3bd66094863d 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2251,6 +2251,8 @@ 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: f5098b6bae761e346ebcd9da7f95622c04733cff --=20 2.55.0