From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fhigh-a5-smtp.messagingengine.com (fhigh-a5-smtp.messagingengine.com [103.168.172.156]) (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 40A1E468C1B; Fri, 4 Sep 2026 17:24:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=103.168.172.156 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788542665; cv=none; b=HXZ9vAad5XWmw3qQfB9tJhkS1FvkVNbv6UBx6Y+ywvOy0wn2olrZY9lKWTDxeB5ho5rLoXmiNQxGVIedPDmwIpNYBydVqbTOjmJ0r1TREYI4bcW+ngo5tSpYLuJBt8bSQENezV68fdevm413SD0KrY9yGBj353eChzc4r4HEx7M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788542665; c=relaxed/simple; bh=aHRrwqVmsjy8g0VpNAWWWsqE6EEnUadxJ7SP0R6D1kQ=; h=MIME-Version:Date:From:To:Cc:Message-Id:Subject:Content-Type; b=XrnS8fLczkCdApe1Sdxl/ZPsrWI5f9ULcVZp0pRkfdeaIBzrliZU6XJMiwM0lfYiXXWWsuK2Jn6VOsQeI4jEwBkX9XsvYsrZ8PVqhl7jYxdgnrNCJ4rp2YbO1pP575OH7+o2wIxzf0ITbBYLSDm5qn1jEtd23nnHtlAEkmg/tL0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nickpegg.com; spf=pass smtp.mailfrom=nickpegg.com; dkim=pass (2048-bit key) header.d=nickpegg.com header.i=@nickpegg.com header.b=qEEul7dr; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b=OqTpno2x; arc=none smtp.client-ip=103.168.172.156 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nickpegg.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nickpegg.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nickpegg.com header.i=@nickpegg.com header.b="qEEul7dr"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="OqTpno2x" Received: from phl-compute-04.internal (phl-compute-04.internal [10.202.2.44]) by mailfhigh.phl.internal (Postfix) with ESMTP id 2C841140013E; Fri, 4 Sep 2026 13:24:18 -0400 (EDT) Received: from phl-imap-03 ([10.202.2.93]) by phl-compute-04.internal (MEProxy); Fri, 04 Sep 2026 13:24:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nickpegg.com; h= cc:cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:message-id:mime-version:reply-to :subject:subject:to:to; s=fm2; t=1788542658; x=1788629058; bh=eA Wr6LHPi4LLwO2tVfuAs28v+80IHXqcFgQC2kjU5m4=; b=qEEul7dr0ktGXC5qxe j7kjy9DaNu3u3xPrLXeIRa4B6GZn9omWLw/FqLyQy2t9ZZ0RJWocnFmYxHblsvLq 7+RrrS4mYM3Lc8xoB9f6OL5mgSuvFT9IydWXzAQN/YN8K5+kEC5+fxzSLJhg0X6F pNBLuJXleB3H+LkNv5wr/LR2LACwUhmllSonv+dfElwzhyxq9xU+GXwmIidBIN3A Jv5ARdOStAhWsd21UM52Csn8uJF8arVNayd5jenqcENOlaZNSonDd4nuyS9kOxgY NCmKj7sCHgFrmb3IOuGYwJXAi+cZRE+XtPWekVSIqfCdIm/MQOwWwYb09MkwUYOX bcag== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:message-id:mime-version:reply-to:subject :subject:to:to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; t=1788542658; x=1788629058; bh=eAWr6LHPi4LLwO2tVfuAs28v+80I HXqcFgQC2kjU5m4=; b=OqTpno2x+HVFBBuhoLqbkXbu993IcE/I83ULrvSJ8KSc draQkedyJRqp8U+LAHKGqZon0AULL6L+/hwlAnTRZHlBTSsboDzzWp5BHLZP4kGd 7HyJkZIRg8TicaDD1Un0eiQCvzOdN/ml6eS5eyK8m/PLncg2X0qKv06vB27jlc6M qLi4t+mdObhvpwZU6zUDSA0bDyplYFp1oSBQYeD26leOCaBzEC21ivStpBnX4BVs vWSbX4n0QaJebXb9e4xhjc0C6ZbyfISrQ/Nq6fkXwTDnKXjWYTyoctodVH7BQEGY wEBQXu5VNC09R+Mio55Fgz2yD2XH1y+52tcs17/VpA== X-ME-Sender: X-ME-Proxy-Cause: dmFkZTGbbKRuRpgkEZIKdvGyFi4NcEwTalIXYOIrzXGVZW/qIvDSa8WiF/NkB+DgnqGX5s ZEWG66klrOp0LE/eoR329c5/loVt6ySxhtCO33D+uVANbYPMQPNQzcAfZRtf60jVkFQRMX ZJEuqluNvpsetrGOvPyr0lckmSfBnYfvVJSxtpirTbrsPMInkCT7JXkJp9dF9HbWsJLMZP QpmyUM7JozJRAn6K/tu5UWqMGqZtgul+nyAac6JSOt4CS3GGvKIEB20IkKGtWrkK9jAt6q mU4aUIasGKXNGVcN8Evb/LA/QIAxb6hq9jhikn5jTuG9RL7L++pX21kTQggAo+JuVDklqt Yn/JTBiqlBAuP736Hi2M0UQoW5BTKW81xX5q6clua1lm/lKI3MO/AW/6L66sFRmdypF4ip BmemPNT5zBp2NNk13b3kD83kHh5ZFLyT/IpAnhuoD3i0TFX1/CnNR0AhMFMv1bPBGMeLGn +fmApUmmtQDfuz8fm69YpUBLEviaheuUutWkmDzlwVKvVuFGj2xRZlQ5qU4D9mbz3Cl4r0 37j2BlJO/RRa/FYZJCeJ0u49zvfMu9tG3y4Q7BSmupxdYnJK743WdZEc9QSoygH8vIspun O1WpZtkH8BL1/UDESD3oyxxTBvl2byA4A5KS3Eo31M9/yGFv3EE1GDwRE6ug X-ME-Proxy: Feedback-ID: i95c946fb:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id 9F25018E006C; Fri, 4 Sep 2026 13:24:17 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Fri, 04 Sep 2026 10:23:15 -0700 From: "Nick Pegg" To: perex@perex.cz, tiwai@suse.com Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org Message-Id: <42486ae6-a634-4897-ae70-338dfca68bd9@app.fastmail.com> Subject: [PATCH] ALSA: usb-audio: Add quirk flags for Behringer UV1 Content-Type: text/plain Content-Transfer-Encoding: 7bit The Behringer UV1 is a microphone audio processor with a USB audio interface, which experiences periodic stutters unless implicit_fb is used. This seems to be a similar device to the Behringer UMC series, so I copied the quirks from those. I've confirmed that my own UV1 works great with these flags set. Signed-off-by: Nick Pegg --- sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 4d2957e62fbd..5b27659d3eb7 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2388,6 +2388,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB), DEVICE_FLG(0x1397, 0x050c, /* Behringer Flow 8 */ QUIRK_FLAG_IFB_SILENCE_ON_EMPTY), + DEVICE_FLG(0x1397, 0x0510, /* Behringer UV1 */ + QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB), DEVICE_FLG(0x13e5, 0x0001, /* Serato Phono */ QUIRK_FLAG_IGNORE_CTL_ERROR), DEVICE_FLG(0x152a, 0x880a, /* NeuralDSP Quad Cortex */ -- 2.55.0