From nobody Fri Oct 2 14:03:14 2026 Received: from mail-10629.protonmail.ch (mail-10629.protonmail.ch [79.135.106.29]) (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 0B28133939F; Fri, 31 Jul 2026 02:43:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=79.135.106.29 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785465828; cv=none; b=TYc4ZK46zsGkCvRBKGKDwodGAgRcDor/c7tJpXqTlfuepelMFxu5Vx/BpqQP02+dFldYTh3GtiLoCGbojwJolOMeSAoMDUfrgSDpIIW8gH6lnUCqJaOOYXOlD/eDUNZ3LYBnuNhFIJy66m+MsLOmfkuhbCZ1ltsWdujKKUDPDRo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785465828; c=relaxed/simple; bh=woJeAwQCKDYZW9YeG7Gp/2gqnpBz2zUUc3sEcQxt3Yk=; h=Date:To:From:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=d/649Vk+0lgrhHGlgFVNb+AYsoKuY/zzyv4neOGGy81CgqH4Bq0Ptr5i+AC5LrdYn348Prm50LxjWEHcUFkacMPX+lDQIAivWzPEyUSUctsIkyIKnP4vmEeDJYkaG9HNrj9lCLgpfEapkEEo9iY0GgkFLhA8MlP4IJ4gyySZM/Q= 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=CbTJi+Vu; arc=none smtp.client-ip=79.135.106.29 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="CbTJi+Vu" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=proton.me; s=protonmail; t=1785465816; x=1785725016; bh=MmDjFAZavSECpBheRa/juMlBrSOIjWp8rpsakhB6dG0=; h=Date:To:From:Cc:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=CbTJi+Vuo/u2Vj0i7wcVz3MGCty6MfQSBHHV7PYej2FHTb5bgReWIlziTM2pFEF7c UM46bfNY75HZPTAAPVxs3j2TPGsV+1HHTARizbU1nyte6mhIuIJ/HLhOlIDAKZpqt8 IXbeo4IZ/nkZdyXZO7YVmpnr6uTJFx/kZJBgifcvzyliJcgNW3f5pqNPztqR0+CFUm 6zkQ+/2jUQ0XVlmPuUF1TWxJEDfAqbnvEhO62ivYg5Sft1uPch05wjliAXaadmNnDl s1xHvL9MiHe/q4V391xYmsrFBJYRtgCm3Sr15YYhc7D3L4s5G/gif1zZpb4ABqbL7p wcxYLlvpviS6g== Date: Fri, 31 Jul 2026 02:43:31 +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: <20260731024315.31451-1-faxuser@proton.me> Feedback-ID: 57639451:user:proton X-Pm-Message-ID: 851699cd0886fb54571d840e497e18162cfb1fb5 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) --- sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 0de7c9d94259..e038b5ccbcba 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