Use WDF_DEVICE_PROPERTY_DATA to store calibration parameters as a binary buffer under the Device Parameters\TouchCalibration key.
[ X_calibrated = A \cdot X_raw + B \cdot Y_raw + C ] [ Y_calibrated = D \cdot X_raw + E \cdot Y_raw + F ] kmdf hid minidriver for touch i2c device calibration best
NTSTATUS TouchCalibrate_EvtIoDeviceControl( _In_ WDFQUEUE Queue, _In_ WDFREQUEST Request, _In_ size_t OutputBufferLength, _In_ size_t InputBufferLength, _In_ ULONG IoControlCode) Download the Windows Driver Kit (WDK), study the
Specifically, for I2C-connected touch devices, the most robust architecture is a . However, even the most well-written driver is only as good as its calibration routine. Download the Windows Driver Kit (WDK)
Download the Windows Driver Kit (WDK), study the HIDI2C sample driver, and begin implementing your custom calibration IOCTL. Your users will thank you the first time they tap a button exactly on the first try—without corrective shifting. Keywords integrated: KMDF HID Minidriver, Touch I2C Device Calibration, Best practices, Windows driver development, HID over I2C, affine transformation, registry persistence.