usb ethernet gadet

[Thilo Jeremias <thilo.jeremias%gmail.com@localhost>]

Hi,
I'm currently playing with the linux usb gadget stuff,
and I noticed that the ethernet usb device is not recognized on 4.0.
It identifies itself as: 
port 2 addr 3: full speed, self powered, config 1, RNDIS/Ethernet 
Gadget(0xa4a2), Linux 2.6.21.5/at91_udc(0x0525), rev 2.13
Does anyone knows if this only needs a descriptor somewhere and matches 
an existing device or a port of some kind from some other BSD?
What are the rules if the linux driver would be rewritten (can I look at 
it or is that already tainting the code?)
Has netbsd anywhere a similar concept of gadget drivers (where the 
netbsd is the USB device)?

ta
thilo