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Date:   Fri, 23 Dec 2022 15:50:26 +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 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.

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?

thanks,

greg k-h