From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 DBF854E780C; Thu, 17 Sep 2026 18:02:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789668127; cv=none; b=Jigid6lY3Hvb84+XPpHau5vgtolJRaiyPhX9IzN/33j3JZ3u8vRgHkTsbVHqm9lXSumsAavXUqULQycv6Lv/0/w8fk4KE0FWGSYNMpJ/A6MRGVtKnjaOpmDPGkMVukD5u8lsWc/JZccZg1x7quv6rZ4sGTK+/vfeOUDGr9torQE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789668127; c=relaxed/simple; bh=Usqtm6m9fQhqxIuiB3AvY+rupy5QUP6YEx/BpG32pTo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=l7yhJMYhuBntPrtMQ41vp+rhe8XYrkaq1n2jfZ/JAIU+I4SW9XWpS/nKTAUDjtqIehUa1Dr1yOWJJ297imxtZBpMwhxFxERFHF9FRdpGTMwDTiU3mj6eqjJr93TS6IWupjVnrEen8TS9kRER9EiEkNw3uJ4biuLi9ziXookPNl8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=eZpL5bTy; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="eZpL5bTy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 39A1E1F000FF; Thu, 17 Sep 2026 18:02:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789668125; bh=qdERy2ApAej1pHtlTepIbFfNCBVikcL1hWo0UzjGTHA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=eZpL5bTy32Wy8tsgpbUi895drEp4fj4X3/q/V+H88CEc63qsTpnZQWChjrXn+5ecU 4LgpvZmyR5LTLJkrLDI2To5B+9LgVUYDlFEPQP65liuj2JqyGikUIIBzyy0KSZ8l/5 o/128lMww1YJpSrIFz79fBe9rDVmpFtZttA0Ojjc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ai Chao , Takashi Iwai , Sasha Levin Subject: [PATCH 6.12 0321/1102] ALSA: usb-audio: Add quirk flags for SC13A Date: Thu, 17 Sep 2026 16:04:24 +0100 Message-ID: <20260917151547.688590817@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151539.408551884@linuxfoundation.org> References: <20260917151539.408551884@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ai Chao [ Upstream commit 8956950dab22fbaefe92ca1980728165c5da793d ] The SC13A ( VID 0x1ff7, PID 0x0f81) not support reading the current sample rate and results in an error message printed to kmsg. Set QUIRK_FLAG_GET_SAMPLE_RATE to skip the sample rate check. Quirky device sample: usb 3-5.2.4.1: new high-speed USB device number 11 using xhci_hcd usb 3-5.2.4.1: New USB device found, idVendor=1ff7, idProduct=0f81 usb 3-5.2.4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 3-5.2.4.1: Product: SC13A usb 3-5.2.4.1: Manufacturer: Linux Foundation usb 3-5.2.4.1: SerialNumber: 000002 usb 3-5.2.4.1: Found UVC 1.50 device SC13A (1ff7:0f81) usb 3-5.2.4.1: 3:1: cannot get freq at ep 0x86 usb 3-5.2.4.1: Warning! Unlikely big volume range (=4096), cval->res is probably wrong. usb 3-5.2.4.1: [5] FU [Mic Capture Volume] ch = 1, val = 0/4096/1 usbcore: registered new interface driver snd-usb-audio usb 3-5.2.4.1: 3:1: cannot get freq at ep 0x86 usb 3-5.2.4.1: 3:1: cannot get freq at ep 0x86 Signed-off-by: Ai Chao Link: https://patch.msgid.link/20260617025234.3344935-1-aichao@kylinos.cn Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index ea2ec3507521e..22c2f59d953a2 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2325,6 +2325,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_MIC_RES_16), DEVICE_FLG(0x1bcf, 0x2283, /* NexiGo N930AF FHD Webcam */ QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_MIC_RES_16), + DEVICE_FLG(0x1ff7, 0x0f81, /* SC13A Webcam */ + QUIRK_FLAG_GET_SAMPLE_RATE), DEVICE_FLG(0x2040, 0x7200, /* Hauppauge HVR-950Q */ QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), DEVICE_FLG(0x2040, 0x7201, /* Hauppauge HVR-950Q-MXL */ -- 2.53.0