code: def getRawReportDescriptor(self):
          
          descriptor = _hidraw_report_descriptor()
          size = ctypes.c_uint()
          self._ioctl(_HIDIOCGRDESCSIZE, size, True)
          descriptor.size = size
          self._ioctl(_HIDIOCGRDESC, descriptor, True)
          return ''.join(chr(x) for x in descriptor.value[:size.value])
docs: Return a binary string containing the raw HID report descriptor.