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# kIOHIDValueScaleTypeCalibrated

An option to scale the value with respect to a set of calibration properties.

```
kIOHIDValueScaleTypeCalibrated
```

## Discussion

The system sets calibration properties for some types of data. For example, the built-in event driver calibrates digitizer data to the logical minimum and maximum values. If no calibration properties are set, the [`getScaledValue`](/documentation/HIDDriverKit/IOHIDElement/getScaledValue) method calibrates the value to the range `-1` to `1`.

---

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