From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4E6FC433EF for ; Wed, 9 Feb 2022 12:03:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231626AbiBIMDs (ORCPT ); Wed, 9 Feb 2022 07:03:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231945AbiBIMDO (ORCPT ); Wed, 9 Feb 2022 07:03:14 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0737C00190E for ; Wed, 9 Feb 2022 03:39:20 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5AB936114D for ; Wed, 9 Feb 2022 11:39:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1BE66C340E7; Wed, 9 Feb 2022 11:39:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1644406759; bh=aGWQEHQnXlgZ5CIujaYLiNjiluvdwkjgX6cw2FOAIFo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OpdS5zGOYIVrDv0WdNsZp1CcZ3/IokBMKxjPMjjm6P7IwjaXfv9OHJwMnIJZpk4TX cngxgO9so+j940fn1pT8r2U8M7LkMjm+LTGprUX/uwkESKONXSRuXmm99UgWUE+Jnl VeYVglodvHDyPfrg/13SmQ3EBZQ4iJQrL0kNeeGA= Date: Wed, 9 Feb 2022 12:39:16 +0100 From: Greg KH To: Eduard-Bogdan Budai Cc: linux-usb@vger.kernel.org Subject: Re: Bug report for pl2303 converter (ATEN USB to serial Bridge, idVendor=067b, idProduct=23a3, bcdDevice= 1.05) Message-ID: References: <10d4dbe9-4b17-aeb5-0abe-bf0829173c1d@rcs-rds.ro> <35338b26-41db-e772-235a-502caa30e00f@rcs-rds.ro> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <35338b26-41db-e772-235a-502caa30e00f@rcs-rds.ro> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Wed, Feb 09, 2022 at 12:13:28PM +0200, Eduard-Bogdan Budai wrote: > Thank you very much for your answer. > > The newest kernel that is in the standard Ubuntu 20.04 repositories is > today Linux 5.13.0-28-generic #31~20.04.1-Ubuntu SMP Wed Jan 19 14:08:10 > UTC 2022 x86_64). After moving from 5.13.0-27-generic #29~20.04.1-Ubuntu > to the newest 5.13.0-28-generic #31~20.04.1-Ubuntu, the dmesg showed: > > [Wed Feb 9 11:38:51 2022] usb 3-2: new full-speed USB device number 4 > using xhci_hcd > [Wed Feb 9 11:38:51 2022] usb 3-2: New USB device found, idVendor=067b, > idProduct=23a3, bcdDevice= 1.05 > [Wed Feb 9 11:38:51 2022] usb 3-2: New USB device strings: Mfr=1, > Product=2, SerialNumber=0 > [Wed Feb 9 11:38:51 2022] usb 3-2: Product: ATEN USB to Serial Bridge > [Wed Feb 9 11:38:51 2022] usb 3-2: Manufacturer: Prolific Technology > Inc. > [Wed Feb 9 11:38:51 2022] usbcore: registered new interface driver > usbserial_generic > [Wed Feb 9 11:38:51 2022] usbserial: USB Serial support registered for > generic > [Wed Feb 9 11:38:51 2022] usbcore: registered new interface driver > pl2303 > [Wed Feb 9 11:38:51 2022] usbserial: USB Serial support registered for > pl2303 > [Wed Feb 9 11:38:51 2022] pl2303 3-2:1.0: unknown device type, please > report to linux-usb@vger.kernel.org > > A 5.4.0-99-generic #112~18.04.1-Ubuntu SMP Thu Feb 3 14:09:57 UTC 2022 > x86_64 from a Ubuntu 18.04 recognizes the same adapter as a ttyUSB0 > (which is what is needed to be used). > > Unfortunately, the environment in which happened what I described below > has certain restrictions that don't allow me to try a newer kernel than > the newest that is in the standard Ubuntu repositories... I would suggest going and getting support from those that are imposing those odd restrictions on you, as they are not allowing you to use the hardware you need to use :( Good luck! greg k-h