Mitcho, are your problems resolved?
DSM7 is not recommended at this time, our driver won't install due to package issues (when installing our driver manually on the console manually it works (just copying files), so no binary incompatibilities but package parameters have changed somewhat).
The tvheadend start-stop script would need following check in order to support our units automatically:
if [ -e /var/packages/sundtek/target/opt/lib/libmediaclient.so ]; then
export LD_PRELOAD=/var/packages/sundtek/target/opt/lib/libmediaclient.so
fi
Actually our installer is modifying the tvheadend start-script; that's why we recommend to install our driver after tvheadend is installed, and restart tvheadend once the installation is done.
in case multiple preloads are needed for other things just build up a variable and export it before starting the tvheadend binary.