I am running my Compac on the R1 using the standard U3 cgminer. It's kind of neat as it stands alone & I have pointed the R1 chip to Donate. R1 is running at 300MHz and the Compac at 375MHz.
aarons6 has ported cgminer-gekko to the R1 but I have not been able to get it to run at the moment.
Oh, well that's cool that it will work like that. Do you have the compac plugged into a hub, then the R1 (like it says to do for the U3)?
Also, how do you change the compac frequency while it's controlled by the R1? The pull-down menu is populated with frequencies for the U3.