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 465C4C4167B for ; Sun, 25 Dec 2022 11:08:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229464AbiLYLIg (ORCPT ); Sun, 25 Dec 2022 06:08:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229441AbiLYLIf (ORCPT ); Sun, 25 Dec 2022 06:08:35 -0500 Received: from relay19.mail.ox.ac.uk (relay19.mail.ox.ac.uk [129.67.1.170]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EC1E5F88 for ; Sun, 25 Dec 2022 03:08:32 -0800 (PST) Received: from smtp8.mail.ox.ac.uk ([163.1.2.204]) by relay19.mail.ox.ac.uk with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1p9Orl-0007jn-9h; Sun, 25 Dec 2022 11:08:29 +0000 Received: from 183.red-88-24-108.staticip.rima-tde.net ([88.24.108.183]:40226 helo=hilbert.cs.ox.ac.uk) by smtp8.mail.ox.ac.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1p9Orj-0000a4-Sx; Sun, 25 Dec 2022 11:08:28 +0000 Received: by hilbert.cs.ox.ac.uk (Postfix, from userid 1000) id 388D0741515; Sun, 25 Dec 2022 11:08:26 +0000 (GMT) Date: Sun, 25 Dec 2022 11:08:26 +0000 From: dima.pasechnik@cs.ox.ac.uk To: Greg KH Cc: Alan Stern , linux-usb@vger.kernel.org, Mike.Spivey@cs.ox.ac.uk 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="Q7+jHLoY2orbCZAf" 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 --Q7+jHLoY2orbCZAf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Dec 24, 2022 at 07:53:54AM +0100, Greg KH wrote: > On Fri, Dec 23, 2022 at 11:51:48PM +0000, dima.pasechnik@cs.ox.ac.uk wrot= e: > > 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 = wrote: > > > > 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 devic= e. > > > > Please see attached; I also attached the output for an older versio= n 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. > >=20 > > The vendor is ARM (https://www.arm.com/) - I guess Linux Foundation is = a good "someone" > > to talk to the vendor in this case. >=20 > I do not understand here, are you asking me to talk to someone? If so, > great, who? If not, who are you asking? >=20 > > Can PID be bumped up by a firmware update? >=20 > Depends on how the hardware was designed. Most can, some can not. Is > the hardware design and firmware source available anywhere? As far I know, firmware comes from https://tech.microbit.org/software/runtime/ As to why these V1 and V2 happened to get the same product ID, perhaps my colleague Mike, in CC, who teaches a course using this board, knows mor= e. Cheers Dima --Q7+jHLoY2orbCZAf Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEJVdDnfI7raAa4RJxoksLHjfJBTEFAmOoLyoACgkQoksLHjfJ BTEHXgf/a5qiRFWxOpKvkngU7lgzLQY6prAG3l1BPcSdEyHKEJlmZVE/BCvOiadr qdoeGk7B0NOadJ+iVqW9TRMPP9E1NS/qm0OEr2h18YSIOrVtYgFp37bVqP5rrHU2 ZHXQ+EEtuMTI/wt7gP26LAx713m2kGzZCIrr4Dll4wr4XjJNi50LtfMjpyxFjYBB Qavx+I3RgDFNcj9zXcys6V8fMaZMw6wGNpxWy2wppVAo2QucK6jEQS5L9XyBMfsj pnn7dG1OIQ80nr1I05uK13YTNMqOvMFV1cLR4qF4n5r0Afe87W2DIXgmkkaEqglu JsYO1UhmKyHNAUdNOCwcfpIDnKSGng== =MDwh -----END PGP SIGNATURE----- --Q7+jHLoY2orbCZAf--