From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8C8B520ED for ; Wed, 27 Aug 2025 08:37:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756283836; cv=none; b=iD1Oy0vysQDid5T6yktqdxbkfyN9vGO1vzru6MpszRJgc9gk/fjYZRnhRnHDJ8QXVJ71ixMr7Fa7p4mDb1m0TduNnAeDkpuGm2Ye+bGYv6HqAzs41dYwmD9yvPh1lwyxAaiHf/BIK/W0/H2oZd1mxy/dWAyVSMPjoNLEvybl/Ss= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756283836; c=relaxed/simple; bh=gRBDXqVfv1IEzhdKqOd3lhES/p03JmHFBnagJP0dQak=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=ESa911c4+Jm+0xRGP79d/8lL32Uv1d5b5NANxQKdaX+wYkgKwoN3ItE7CZ7LvyO4uuc8Erlf3jAhlq4+fwhj/IxBFxSzJJsVllkwQeMMY0crKShJkAmFwHu9IhDm+c6PUK9o/CRaxmfAjtGpIiIf49lKNV44iKeb2CfmZNO3iT8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=I1o84E9U; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="I1o84E9U" Received: by smtp.kernel.org (Postfix) with ESMTPS id 236DBC113CF for ; Wed, 27 Aug 2025 08:37:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756283836; bh=gRBDXqVfv1IEzhdKqOd3lhES/p03JmHFBnagJP0dQak=; h=From:To:Subject:Date:In-Reply-To:References:From; b=I1o84E9Ud4TV1mXr44fhL0/crQKx9eruWClckEnyEBr6E9G9ncG5ySIlcS9ppfWB4 MRe8ji3wkoS1eCx9xu0n/g8Gjauk2dpUuMX4PdHzxJ+75Su6r9NJQ5Ri7K3yw4uRQ6 eqxgQiu6FEKCb25MME40bF9idyRtR0wRQEBUiQAIWcvFbBZMV+ZLPJfHJWj9GTc5Xv MuCcrbLhZbyisRYjsDZBNn7oLIBPU3B9coRLY2GZgzD9v0xvXUPP/wYFTb3ymCW197 7QyOxLWfUNj1M8ncA0RQxMCnBiUpCZNQqQc7y7BT604PHeo7CDY8N4x8JMuSNphzsC r/hKWy3RPr13g== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 0FD5FC53BBF; Wed, 27 Aug 2025 08:37:16 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 220331] FTDI serial IO - unknown device type: 0x8312 Date: Wed, 27 Aug 2025 08:37:15 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: johan@kernel.org X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D220331 --- Comment #4 from Johan Hovold (johan@kernel.org) --- On Thu, Jul 10, 2025 at 09:11:14AM +0000, bugzilla-daemon@kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=3D220331 > Issue with a newer hardware with USB DisplayLink adapter, syslog throws > following error about unrecognized device type 0x8312: >=20 > > [ 4.447826] usb 1-8.2.1: New USB device found, idVendor=3D17e9, > > idProduct=3Dff00, bbcdDevice=3D83.12 > > [ 4.447833] usb 1-8.2.1: New USB device strings: Mfr=3D1, Product=3D= 2, > > SerialNumber > > =3D3 > > [ 4.447835] usb 1-8.2.1: Product: PM1000 > > [ 4.447836] usb 1-8.2.1: Manufacturer: DisplayLink > > [ 4.447837] usb 1-8.2.1: SerialNumber: 9638293100007141 This does not look like an FTDI device and as far as I can see ftdi_sio driver should not even try to bind to it currently as the VID/PID is not in the driver's match table. > > [ 4.479297] usbcore: registered new interface driver ftdi_sio > > [ 4.479363] usbserial: USB Serial support registered for FTDI USB Se= rial > > Device > > [ 4.480786] ftdi_sio 1-8.2.1:1.0: FTDI USB Serial Device converter > > detected > > [ 4.480848] ftdi_sio ttyUSB0: unknown device type: 0x8312 > > [ 4.480923] ftdi_sio 1-8.2.1:1.1: FTDI USB Serial Device converter > > detected > > [ 4.480957] ftdi_sio ttyUSB1: unknown device type: 0x8312 > > [ 4.486014] ftdi_sio ttyUSB0: unknown device type: 0x8312 > > [ 4.486049] ftdi_sio ttyUSB1: unknown device type: 0x8312 Please post the output of "lsusb -v" for this device. Johan --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=