Your KMDF driver must handle interrupts. When a touch event occurs, the I2C controller asserts an interrupt line. In your EvtInterruptIsr :
The KMDF HID minidriver for touch I2C device calibration provides a set of APIs and callback routines that allow the operating system to interact with the touch device and perform calibration.
However, hardware variations, manufacturing tolerances, or sensor degradation over time can cause inaccuracies. is the process of mapping raw touch coordinates from the sensor to the corresponding screen coordinates, ensuring high accuracy, particularly at the edges. What is a KMDF HID Minidriver for Touch? kmdf hid minidriver for touch i2c device calibration
Capture logs via TraceView.exe and correlate with HID class driver traces.
A user-mode calibration tool would:
The Windows-provided class driver that native KMDF minidrivers bind to using HidRegisterMinidriver .
NTSTATUS WriteCalibrationToRegistry( WDFDEVICE Device, PVOID Data, ULONG Size, ULONG Version) Your KMDF driver must handle interrupts
The INF must mark the driver as a and declare HID class as upper filter: