@ kbw: You know how to do this in user space?!?!?! Most other people I'd call bull$--- but I have a feeling that you're not just making stuff up. Unless you're talking about the app that interfaces with the driver, in that case I would know what you're talking about.
@ OP: I usually recommend Wireshark for these kinds of non-specific requests. Since you're light on the details it's kind of difficult to give you a better solution.