Gemalto modems have hardware related commands, allowing to monitor voltage
and temperature. These parameters will be accessible on DBus interface:
org.ofono.HardwareMonitor.
- Create the DBus method table with one entry: GetStatistics. This method
would return temperature and voltage values.
- Create a dedicated structure to handle the DBus methods.
- Create enable/disable functions to handle DBus interface registration.
Actual cinterion plugin is not compliant with newer Gemalto modems.
Gemalto plugin is based on cinterion with a custom struct to handle the
interfaces Application and Modem.