By defining a rule, you can separate the 'HID' keyboard from the 'real' keyboard..
once it's separated, it shows up as another device.. /dev/input/remote (or something like that)
Sorry, I don't have the link, maybe you can find it.. the relevant details were:
Twinhan VP-1024 (or VP-1022 or VP-102C, can't remember which one, they all come with the same remote)
'MythTV', 'Remote' and possibly 'HID Device' were other terms I recall searching for...