Exactly :) the hardware team already designed our own SDR and now we are working on a lab model, sorry for not clearing that.
Our SDR will be close to the UmTRX SDR, but it uses LMS7002 as the Radio Front End, and Altera System on Chip (SoC) as the Baseband processor.
Now we want the host PC (which runs GNURadio) to see our SDR as a USB source, so I think we need some sort of USB drivers to be installed in the Host PC and the SoC as well, in order to establish the communication via USB.
I hope that I didn't make it weirder :P