Method get_major_driver_version

rust/src/lib.rs:1436–1439

(&self)

    }

    fn get_major_driver_version(&self) -> String {
        self.get_major_version(self.get_driver_version())
            .unwrap_or_default()
    }

    fn set_driver_version(&mut self, driver_version: String) {
        if !driver_version.is_empty() {