All right – I have just pushed a fix for the issue regarding the broken polling of SNES controllers with “RPi2” overclocking settings: https://github.com/petrockblog/ControlBlockService/commit/05c2e34984a36c2855a571e6570cf48523d9e7be

Polling of the SNES controllers works for all official (=raspi-config) overclocking modes now!

To update the ControlBlock driver you need to follow these steps:

cd ControlBlockService  # change to repository folder
git pull  # update repository to latest version
sudo make uninstallservice  # uninstall ControlBlock service
sudo make uninstall  # uninstall ControlBlock binaries
make  # re-compile ControlBlock driver
sudo make install  # install ControlBlock driver
sudo nano /etc/controlblockservice.cfg  # enable gamepad type "snes" with the text editor
sudo make installservice  # install ControlBlock service