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?
> > 
> > No, sorry, I don't. Do I have to open the device to check? (I'd rather not... 
> > I'd have to crawl into the attic to get to it)
> 
> 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.
> 
> 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