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 6D5281C861B for ; Thu, 10 Jul 2025 09:11:14 +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=1752138674; cv=none; b=ZKodwgKHVVZjoOpCxrDtpREhIXTKmq00MS60so73UkNAI3cP6SUrsAx1FAA+V8BMZ0FEUPEP93YJiLfe1m86ZhDjIH/4dveplgjJr84JSRQcUimZtFxiXh732oiOvfl9cg4uyF0ubxaQ2+wOY9DRPZhybjXweejCkY179HU/uWA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752138674; c=relaxed/simple; bh=bU3G3NQXTbBsUsFWHm0A7cxZQOxzkDZNyLdo/G03m4I=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=TJZHAKh0Ie550W71/2eHtp1HdKfSLwL185z9nrq0tI7rJueSEwrVTzCBSmG3h8Ns5E9rG4GYkTk86LF9lMTOZduY+QLRS+jqLeK8mwYfVionaVqqoEaZU1fyP6XhCXGCRtNiOaMi9FsTcUr2DRFschw8fbJ52MV41IR+z1zSjJ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QQ8KLjY2; 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="QQ8KLjY2" Received: by smtp.kernel.org (Postfix) with ESMTPS id 4C7B4C4CEE3 for ; Thu, 10 Jul 2025 09:11:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752138674; bh=bU3G3NQXTbBsUsFWHm0A7cxZQOxzkDZNyLdo/G03m4I=; h=From:To:Subject:Date:From; b=QQ8KLjY28ERV2nSQWcB7ySApsWbgXkVFy2kP8KALfi+iX1BqYOtIwqX/5XNATwKW2 7AYpqwSLLFhBkf0o6pGAhxDxhnqEIwbydsx2WJsZ2itZYVIpJXr6K8lRDUK7NlmVzq YzlC4dlXE8LR0NAuuWIO2bjXPGl//hUILhiOP2Zo4wBSX/bbrVxDWEA3UBGaerZzli vceyeo3PoHGnNFr5PgsQyiWSr8GnwXXC91nikl5ZGx46VZoKQXX82ib0mLXWumPsxi vrx+/yOVTK8x+Gqdp1/wLM9KnaBJGTriCMdjswNkGvrEQ7fcMqYGKq495ePz9Bdc6b nwWMyLd56BRXQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 3C5B7C433E1; Thu, 10 Jul 2025 09:11:14 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 220331] New: FTDI serial IO - unknown device type: 0x8312 Date: Thu, 10 Jul 2025 09:11:14 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new 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: tomas.hanslik@septim.cz X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: 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 Bug ID: 220331 Summary: FTDI serial IO - unknown device type: 0x8312 Product: Drivers Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@kernel-bugs.kernel.org Reporter: tomas.hanslik@septim.cz Regression: No Issue with a newer hardware with USB DisplayLink adapter, syslog throws following error about unrecognized device type 0x8312: > [ 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=3D2, > 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 > [ 4.479297] usbcore: registered new interface driver ftdi_sio > [ 4.479363] usbserial: USB Serial support registered for FTDI USB Seri= al > 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 --=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.=