If you are getting the following warning messages when running the MCCI USB exerciser then you can try the following:
./mcci2101: error while loading shared libraries: libusb-1.0.so.0: cannot open shared object file: No such file or directory
sudo apt-get install libusb-1.0-0:i386
./mcci2101: error while loading shared libraries: libudev.so.0: cannot open shared object file: No such file or directory
pushd /lib/i386-linux-gnu/ sudo ln -sf libudev.so.1 libudev.so.0 popd