code: def hardware_version(self):
          
          version = self._dll.JLINKARM_GetHardwareVersion()
          major = version / 10000 % 100
          minor = version / 100 % 100
          return '%d.%02d' % (major, minor)
docs: Returns the hardware version of the connected J-Link as a
          major.minor string.
  
          Args:
            self (JLink): the ``JLink`` instance
  
          Returns:
            Hardware version string.