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 7BB5EC4332F for ; Fri, 23 Dec 2022 23:51:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230510AbiLWXvz (ORCPT ); Fri, 23 Dec 2022 18:51:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230341AbiLWXvy (ORCPT ); Fri, 23 Dec 2022 18:51:54 -0500 Received: from relay17.mail.ox.ac.uk (relay17.mail.ox.ac.uk [129.67.1.165]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DDC1265B for ; Fri, 23 Dec 2022 15:51:53 -0800 (PST) Received: from smtp9.mail.ox.ac.uk ([129.67.1.206]) by relay17.mail.ox.ac.uk with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1p8rpP-0004gO-3e; Fri, 23 Dec 2022 23:51:51 +0000 Received: from 245.red-88-25-31.staticip.rima-tde.net ([88.25.31.245]:41060 helo=hilbert.cs.ox.ac.uk) by smtp9.mail.ox.ac.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1p8rpO-0005Be-TC; Fri, 23 Dec 2022 23:51:50 +0000 Received: by hilbert.cs.ox.ac.uk (Postfix, from userid 1000) id B4518741515; Fri, 23 Dec 2022 23:51:48 +0000 (GMT) Date: Fri, 23 Dec 2022 23:51:48 +0000 From: dima.pasechnik@cs.ox.ac.uk To: Greg KH Cc: Alan Stern , linux-usb@vger.kernel.org Subject: Re: usb 1-3: Product: BBC micro:bit CMSIS-DAP not recognised Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ozlq6XiIV36NLqtR" Content-Disposition: inline In-Reply-To: X-PGP-Key: http://keys.gnupg.net/pks/lookup?op=vindex&search=dimpase@cs.ox.ac.uk X-Oxford-Username: coml0531 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org --ozlq6XiIV36NLqtR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Dec 23, 2022 at 03:50:26PM +0100, Greg KH wrote: > On Tue, Dec 20, 2022 at 01:08:59PM +0000, dima.pasechnik@cs.ox.ac.uk wrot= e: > > On Mon, Dec 19, 2022 at 06:36:47PM -0500, Alan Stern wrote: > > >=20 > > > It might help if you post the output of "lsusb -v" for this device. > > Please see attached; I also attached the output for an older version of > > this board (V1). The one we talk about is V2. Both versions have the > > same VID, and, weirdly, the same PID (internally they aren't binary > > compatible, even) >=20 > That's horrible, someone should talk to the vendor here and get them to > at least bump the device id. The vendor is ARM (https://www.arm.com/) - I guess Linux Foundation is a go= od "someone" to talk to the vendor in this case. Can PID be bumped up by a firmware update? >=20 > Anyway, I don't see a "serial" device here, just use the cdc-acm driver > and all should be ok, right? Is there any missing functionality that > you feel is required that only the usb-serial api can provide? Not at this point, no. Perhaps I'll resurrect this if I find something out. Best, Dmitrii --ozlq6XiIV36NLqtR Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEJVdDnfI7raAa4RJxoksLHjfJBTEFAmOmPxQACgkQoksLHjfJ BTG9ugf+K9jivhQysq/fwTaL8ISeuSFZ9QGR7zUaBbC0i5fJdObRs+XEVzzbgrbW szd/HTrOyo4UydEM1nCHT0ueY8apU21eqEHBX/DQtJr7a5GtG/qXcwXWdv+Nj18g kSfb/iNyEaCt/8Z2umS/3TC8kmpVIbi/AM4o7GwcEQSpZwsXT5B6qkYWPdWmcGrD vRglmPaIW3khLXCr3IUgPjUgUh/gxdtkwGpkUvJcniGKankRPXECVwuY42osNf9q qEH8VOv+FEy27CC0NRuNUgYrHZOz0z+Jf5SViaZp54xV15N8w1mSVWjnKEZPH/yN K+ZGIZhMTFigu6KsYOp0ZNjsnHLjkw== =1lR8 -----END PGP SIGNATURE----- --ozlq6XiIV36NLqtR--