Hi,
Any current -mm kernel breaks Aten USB to Serial converters. The problem turns 
out to be that gregkh-usb-usb-serial-dynamic-id.patch comments out the USB 
ID.

Simply reverting that portion of the patch fixes it (and I've just uploaded an 
entire Linux filesystem image to an ipaq using the adapter, so no problems 
there).

Any ideas why this was commented out in the first place?

Regards,
bero