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:

quoted

On Thursday, July 29, 2021 12:10:44 PM CEST Johan Hovold wrote:

quoted

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