GetRotationMatrixFromAcpi function (sensorsdriversutils.h)

The GetRotationMatrixFromAcpi function reads the rotation matrix from the ACPI entries.

Syntax

NTSTATUS GetRotationMatrixFromAcpi(
  WDFDEVICE Device,
  PSZ       MethodName,
  UCHAR     MethodNameLength,
  PVEC3D    RotationMatrix,
  ULONG     RotationMatrixEntries
);

Parameters

Device

Supplies the WDF device object.

MethodName

Supplies the method name to read.

MethodNameLength

Supplies the method name length in bytes.

RotationMatrix

Supplies the VEC3D buffer in which the rotation matrix is read.

RotationMatrixEntries

Supplies the number of elements that RotationMatrix can hold.

Return value

This function returns NTSTATUS.

Remarks

The caller is responsible for saving/restoring the floating point context prior to calling this function.

Requirements