From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.molgen.mpg.de (mx3.molgen.mpg.de [141.14.17.11]) (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 8B04B2D24B7; Thu, 19 Feb 2026 19:18:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=141.14.17.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771528706; cv=none; b=L2Ce4+q9Ra5i/2OA5gCUVLTUOBEdVsHzduBCUIp0sF2dtJ2azR8JZZi0x7sUWT7Kn7J/nNP7F1JOaowJPNdZjCQeo6cxvMajDif1PINlrqDxAJvfu/DUu/Rrz6xlBY1aFxZPqA6y4ByiJF41rgp+R84qFoblnUs/UyO53cY49hc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771528706; c=relaxed/simple; bh=IiotpZ8cjTMXrxd6uUKlEn/c66zaQeFfNmZYG5E/Bpo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rdsCzzQHXjMkCrBdpe/RYGHWx9fgIhauCwTow2uL37U6+qhvf0MND+gI8PSiQHIZoqOMPRRQXp5XTP/ouiMbLtBWOVFJpTwdTA4BfjEy0B/+XzKvRSk2ssvqORVVKM5nZOUhqPWG/71AP9Qe4iknbSUTDsV89Yr3//3ELtQO5y4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=molgen.mpg.de; spf=pass smtp.mailfrom=molgen.mpg.de; arc=none smtp.client-ip=141.14.17.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=molgen.mpg.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=molgen.mpg.de Received: from [10.55.231.83] (unknown [46.189.28.125]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: pmenzel) by mx.molgen.mpg.de (Postfix) with ESMTPSA id 1B2CF4C2CA0D00; Thu, 19 Feb 2026 20:17:54 +0100 (CET) Message-ID: <1f71c72b-32c5-459f-bec2-4f2d58ed5569@molgen.mpg.de> Date: Thu, 19 Feb 2026 20:17:52 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] Bluetooth: btusb: Add Lite-On 04ca:3807 for MediaTek MT7921 To: Dylan Eray Cc: linux-bluetooth@vger.kernel.org, luiz.dentz@gmail.com, sean.wang@mediatek.com, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260219191102.64722-1-dylan.eray6@gmail.com> Content-Language: en-US From: Paul Menzel In-Reply-To: <20260219191102.64722-1-dylan.eray6@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Dear Dylan, Thank you for your patch. Am 19.02.26 um 20:11 schrieb Dylan Eray: > Add USB device ID (04ca:3807) for a Lite-On Wireless_Device containing > a MediaTek MT7921 (MT7920) Bluetooth chipset found in Acer laptops. > > Without this entry, btusb binds via the generic USB class-based wildcard > match but never sets the BTUSB_MEDIATEK flag. This means btmtk never > triggers firmware loading, and the driver sends a raw HCI Reset that > the uninitialized chip cannot respond to, resulting in: > > Bluetooth: hci0: Opcode 0x0c03 failed: -110 It’s common to add > The information in /sys/kernel/debug/usb/devices about the Bluetooth > device is listed as the below: and paste the relevant output into the commit message. > Signed-off-by: Dylan Eray > --- > drivers/bluetooth/btusb.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c > index fcec8e5..fd637cf 100644 > --- a/drivers/bluetooth/btusb.c > +++ b/drivers/bluetooth/btusb.c > @@ -705,6 +705,8 @@ static const struct usb_device_id quirks_table[] = { > BTUSB_WIDEBAND_SPEECH }, > { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK | > BTUSB_WIDEBAND_SPEECH }, > + { USB_DEVICE(0x04ca, 0x3807), .driver_info = BTUSB_MEDIATEK | > + BTUSB_WIDEBAND_SPEECH }, > { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK | > BTUSB_WIDEBAND_SPEECH }, > { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK | The diff looks good. With the changes above, feel free to add: Reviewed-by: Paul Menzel Kind regards, Paul