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 X-Spam-Level: X-Spam-Status: No, score=-6.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E62D3C432BE for ; Fri, 30 Jul 2021 12:12:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C6CD961057 for ; Fri, 30 Jul 2021 12:12:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238729AbhG3MM0 (ORCPT ); Fri, 30 Jul 2021 08:12:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:47724 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238687AbhG3MMZ (ORCPT ); Fri, 30 Jul 2021 08:12:25 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 559CF60EE6; Fri, 30 Jul 2021 12:12:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627647141; bh=p1+kmCfg4mBydtgyCeyMRH0tmBVDkv46V/TuQGnBUPQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=pB5SUc8FZ6w3A1MGDiA3efSM2Q2DtxkqtDXfpPSuBLThPTCB5oHCIHiUdzHg1KqLN jJMTMJ4MQYjdxuxZg8smuJb/xuS+QSRlPTvCwAyXy312BZMdBjbXU+bTXdFLwq6XTu UqELMQLjEM2gnzlRW+RhyHvPLK1mIrKXqnZTZi/YXGLOGOIxCpiH11PbjWXsZ3ZXhu 9eeFISv/A4EkEW8r93O2pvXq7NZGSoixD2SZVbnajBc9lHN0WZ3/P8a7mnIAGktqcy JZfShqZmEStVYw5k9mu8Q77P/UAfOMcmkyK8nZwuN/ZBWVmMgeY+K123FgVtOEmC/a LF2Pt4thpQUWw== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1m9RMe-0008U5-76; Fri, 30 Jul 2021 14:11:44 +0200 Date: Fri, 30 Jul 2021 14:11:44 +0200 From: Johan Hovold To: Chris Cc: linux-usb@vger.kernel.org Subject: Re: pl2303 : unknown device type Message-ID: References: <2560053.x2KRyp2eMa@cyber-bucket> <4913832.LPSoa04KD1@cyber-bucket> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Yfr9BGlOmbVZB+fO" Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org --Yfr9BGlOmbVZB+fO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 30, 2021 at 09:32:03AM +0200, Johan Hovold wrote: > On Thu, Jul 29, 2021 at 03:55:48PM +0200, Chris wrote: > > On Thursday, July 29, 2021 12:10:44 PM CEST Johan Hovold wrote: > > > Do you have any idea what kind of chip this is? > >=20 > > No, sorry, I don't. Do I have to open the device to check? (I'd rather = not...=20 > > I'd have to crawl into the attic to get to it) >=20 > No, that's alright. It's most likely an HXD and the difference to HX is > just the maximum line speed as far as we know currently. >=20 > I'll add a special case for the bcdDevice of this device for now. Taking a closer look at this I realised that your device is actually an HX for which bcdDevice is configurable in EEPROM/OTPROM unlike for HXD and later types. (The default HXD product string also has a "D" in it: "USB-Serial Controller D"). So we need to assume any device with bcdUSB 1.10 and unknown bcdDevice to be an HX. Johan --Yfr9BGlOmbVZB+fO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQHbPq+cpGvN/peuzMLxc3C7H1lCAUCYQPsdAAKCRALxc3C7H1l COBHAP9M7dZYUzH+Yl/xFgDLlKkaVtITrnpendPAsNPESTEFegD/bKabfE2rC5JR dD9dc9LHdd2uDE0nr2VUWNHhvFhuFQs= =sI8M -----END PGP SIGNATURE----- --Yfr9BGlOmbVZB+fO--