// sensorsclassextension.h

typedef enum MagnetometerAccuracy {
  MAGNETOMETER_ACCURACY_UNKNOWN,
  MAGNETOMETER_ACCURACY_UNRELIABLE,
  MAGNETOMETER_ACCURACY_APPROXIMATE,
  MAGNETOMETER_ACCURACY_HIGH
} ;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ne-sensorsclassextension-magnetometeraccuracy)

MagnetometerAccuracy enumeration

Description

Specifies the accuracy of the magnetometer.

Constants

`MAGNETOMETER_ACCURACY_UNKNOWN`

The accuracy is currently not available, typically because the driver can't report it.

`MAGNETOMETER_ACCURACY_UNRELIABLE`

The reported values have a high degree of inaccuracy. Apps should always ask the user to calibrate the device whenever this value is returned.

`MAGNETOMETER_ACCURACY_APPROXIMATE`

The actual and reported values differ but may be accurate enough for some applications. Apps that only need a relative value, like a virtual reality app, can continue without additional calibration.

`MAGNETOMETER_ACCURACY_HIGH`

The actual and reported values are accurate. No additional calibration is needed.

Remarks

Device drivers that support magnetometer accuracy should only report the MAGNETOMETER_ACCURACY_UNRELIABLE, MAGNETOMETER_ACCURACY_APPROXIMATE, and MAGNETOMETER_ACCURACY_HIGH values.

Apps that need calibration may periodically ask the user to calibrate the device. We suggest doing this once every 10 minutes.

MagnetometerAccuracy - NtDoc