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 ADA1C4FECCF; Wed, 30 Sep 2026 16:09:32 +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=1790784577; cv=none; b=aRtQ8oHeRtTHrlsPbqC9URa72G6OzIJUWh1aFh6k2B9Q1i3SxC0nFOcrvNtwcWQzLmZ3JlXadCUGPw3KfVnohqVZUgoM5jTdOlpk9zPe147HQD0bv6mAytqHA2hmIf2RFLCNCMPbLoJo5ypM79OOqSMdEZhIKtU5NEA+5WlErO4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790784577; c=relaxed/simple; bh=GIYhlnH/zk8iQ/xwSDXemkpSP7/QzBQOrUmwYejtLAw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jy5XuMEdeufeU/kNKGlc0DsRwF1mjFYGzc+3S9My8wlzOA4pn8tY7NukXCGnnG/Oo9H8KWpL+CeLHK9s78cV60VodT9qzrnpxhQgylakU8rKUpvcTcFufEc8wfefADiFzgtXHfk+bms7/sNrYOxX80ctvawxu1iQxXhRyyAAp2c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Eq8ihWRa; 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="Eq8ihWRa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A3331F0089F; Wed, 30 Sep 2026 16:09:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790784572; bh=YvXqmDjub7PpoLzq/Y7ouh+Cn+xd76/FR7NL3T11sLI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Eq8ihWRaX+JfCa13hBDPlSkvViyzEjMv1z6ExPxZW74wl3WtV1KSNoLC6qgJ0ytwW iW6P3JP84VIRqasRkzXlQc+0CGvSlZAeFgESUcyCio7uWzIXC37/GqIy2Q9TnLf7Jj VcSdPF8uHa4MNvqNnd8EUnG0x90Mge0jFIK6SRrA= 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 6.1 202/982] ALSA: usb-audio: Add quirk flags for SC13A Date: Wed, 30 Sep 2026 17:15:38 +0200 Message-ID: <20260930152421.151598955@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152416.775402466@linuxfoundation.org> References: <20260930152416.775402466@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 6.1-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 ece6ae4a21ed9..b575b50337cbd 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2217,6 +2217,8 @@ 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