FMS streaming from USB

Hi,

I had an USB device connected to a Windows XP PC with Flash Media Live Encoder.

This PC was then connected to a remote Linux Flash Media Server for streaming.

NOW, I can connect the USB device directly on the Flash Media Server, on the remote place, excluding the PC with Flash Media Live Encoder.

BUT, I can't find any documentation about streaming directly from an USB device... is it possible to do it or do I need anyway a FMLE even if on the same operative system? I'd prefer to avoid it, even because of the server being linux.

Thanks!