Well, good and bad news about this one.
First the good news. I managed to get a bunch of 1-way commands working. Basically you can control the onscreen GUI, select songs, play them etc. So if you have it connected to a TV for feedback this works great.
The bad news. The PSX-2 sends all the feedback via multicast UDP. Guess which processors currently don't support this? Yep, the XP6 and XP8. Sucks right?
So if there's a need for a 1-way driver i'll put one out, otherwise start lobbying your local RTI employee to add multicast UDP support