From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793831178; b=P7iiTh9VRn/6WpOU43mGSk5D0RvBi+eOJtiW5KWAV7Egt7CsaekjXSAFkPriN4oIqRhg FMHVgdH+ML6BJODZkrbSfqdbZRbAwyx45lczaFZTNUZIMd9Fmn7Yr125pJ9+CDGj74qKF tRV+aZ0kFnfhQdy4rLfg6HaMppXoWjGtfxuKorusMAAT2yzXoO/YaXQVZjfDdQKbP7uWy xt6U+1YmrG7zlfrs7AicqNPiM6wgB/iOSOK0usGRUxb4W5BwZkc+CCDALnzq0q1Vx8Ccn q7BVQUDEVs/3tqKqAVBk9+kCx/VSwQ8hH/A2TQre2omutQKJAxYS5+k3E3aglopZgtQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793831178; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=lT39qBndpQUj4AeYQsLNgGzcOw1/V4ylSFj03H93Imo=; b=uS3wBG2wCjKwwMy2ySyOlLbGzK8WFLKmXn82jniWfsTTn70sTtgX0yt9U9A0Bac6Apgc S3mt690yqrfBofr8pWXe6VgOnz2I5sY+Io8tbVVNqMUs8pGlOAyqSfeBy9LfiU7xIKAL1 k2TJA7+8xsPBTJYERPm6xWTZFdARAxQ5M0yBJlscSjnSDtIX5bJ1H+4qPoPhCYyXoE2C1 os68aIsfKaHIPgZMV4e1X3xORk1od2lyHopyTAcUPZuaGdJSfmAKpcgx8weS4xJRkzNRB 2X3vR8j9fXk+KPU/0lixWFh4mwIjHJikPg/qMnVsNQdeOiG1C7VVDDXRYniMAtuzDpQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=wx87GUWn; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D1BD7606A332; Wed, 4 Nov 2026 22:26:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=wx87GUWn Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D4041F00919; Wed, 4 Nov 2026 22:26:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793831177; bh=lT39qBndpQUj4AeYQsLNgGzcOw1/V4ylSFj03H93Imo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=wx87GUWnKn7MtCnLY0y450ZP07fLWkWb3FSKVrEXuNCYrP99dpnOScAhOoIyTqBZk 7eiPr65FbGPaBabQWTo8LjNUZD6jaUewt69+B+QZjvN30Qlw6rTbyHMWPRImtfLPdm 6gS2KOn2XBoBZskNYYuSbckg5Nc8o2Q0PwmdLZFw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Matus Gajdos , Takashi Iwai , Sasha Levin Subject: [PATCH 6.18 0508/1005] ALSA: usb-audio: Add native DSD support for Cambridge Audio streamers Date: Wed, 4 Nov 2026 16:04:01 -0500 Message-ID: <20261104211058.167317261@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261104211043.516122098@linuxfoundation.org> References: <20261104211043.516122098@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Matus Gajdos [ Upstream commit 4e1462e7cd6a9b920f441842726cc2b9d232673e ] The Cambridge Audio streamer advertises the UAC2 RAW_DATA format on altsetting 2 of its playback interface, but without the DSD_RAW quirk flag the driver exposes it only as a SPECIAL format that cannot be used. Add QUIRK_FLAG_DSD_RAW for the device (USB ID 22e8:ca10), so the altsetting is exposed as DSD_U32_BE, enabling native DSD64/128/256 playback. Tested with: gst-launch-1.0 filesrc location=file.dsf ! \ avdemux_dsf ! dsdconvert ! \ alsasink device=hw:2,0 Signed-off-by: Matus Gajdos Link: https://patch.msgid.link/20261002125237.82188-1-matuszpd@gmail.com 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 8dcba375bd4a3..be80d9d14e0ad 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2379,6 +2379,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_DSD_RAW), DEVICE_FLG(0x21b4, 0x0232, /* Ayre QX-5 Twenty */ QUIRK_FLAG_DSD_RAW), + DEVICE_FLG(0x22e8, 0xca10, /* Cambridge Audio streamers */ + QUIRK_FLAG_DSD_RAW), DEVICE_FLG(0x2522, 0x0007, /* LH Labs Geek Out HD Audio 1V5 */ QUIRK_FLAG_SET_IFACE_FIRST), DEVICE_FLG(0x262a, 0x9302, /* ddHiFi TC44C */ -- 2.53.0