if capabilities & HYSTERESIS_MASK == HYSTERESIS_IS_NOT_SUPPORTED:
            self.capabilities.append('hysteresis_not_supported')
        elif capabilities & HYSTERESIS_MASK == HYSTERESIS_IS_READABLE:
            self.capabilities.append('hysteresis_readable')
        elif capabilities & HYSTERESIS_MASK == HYSTERESIS_IS_READ_AND_SETTABLE: