- virtual int8_t GetMinLibVersion(void) { return CEC_MIN_LIB_VERSION; };
- virtual int8_t GetLibVersionMajor(void) { return CEC_LIB_VERSION_MAJOR; };
- virtual int8_t GetLibVersionMinor(void) { return CEC_LIB_VERSION_MINOR; };
+ virtual int8_t GetMinLibVersion(void) const{ return CEC_MIN_LIB_VERSION; };
+ virtual int8_t GetLibVersionMajor(void) const { return CEC_LIB_VERSION_MAJOR; };
+ virtual int8_t GetLibVersionMinor(void) const { return CEC_LIB_VERSION_MINOR; };