PT9 and RME Digiface USB
 

I've been trying out various USB interfaces with PT9 running on Mac under OS7. All properly found and working find.

I also tried our RME Digiface USB (which allows 3 x ADAT i/ps) into the USB bus. This is not found by PT although it is found by other apps.

I'm wondering whether anyone has any experience of using this interface with ProTools 9.