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Date:   Sat, 24 Dec 2022 07:53:54 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     dima.pasechnik@cs.ox.ac.uk
Cc:     Alan Stern <stern@rowland.harvard.edu>, linux-usb@vger.kernel.org
Subject: Re: usb 1-3: Product: BBC micro:bit CMSIS-DAP not recognised
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On Fri, Dec 23, 2022 at 11:51:48PM +0000, dima.pasechnik@cs.ox.ac.uk wrote:
> 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:
> > > > 
> > > > 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)
> > 
> > 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 good "someone"
> to talk to the vendor in this case.

I do not understand here, are you asking me to talk to someone?  If so,
great, who?  If not, who are you asking?

> Can PID be bumped up by a firmware update?

Depends on how the hardware was designed.  Most can, some can not.  Is
the hardware design and firmware source available anywhere?

thanks,

greg k-h