The Windows-provided class driver that native KMDF minidrivers bind to using HidRegisterMinidriver .
Account for power transitions ( D0Entry / D0Exit ) by reloading baseline calibration matrices directly to the touch controller chip upon wake. kmdf hid minidriver for touch i2c device calibration
Apply the transformation matrix within the data parsing loop. Execute this logic prior to wrapping coordinates into a HID report packet. Execute this logic prior to wrapping coordinates into
Calibration data generation occurs inside a user-mode application displaying visual targets to the user. The application passes calculated values down to the KMDF driver via custom I/O Control Codes (IOCTLs). Defining the Calibration IOCTL kmdf hid minidriver for touch i2c device calibration
User-space calibration applications (such as a control panel tool) send calibration parameters to the driver using IRP_MJ_DEVICE_CONTROL requests. Your EvtIoDeviceControl callback must intercept these custom IOCTLs.
Windows stores calibration data for touch devices in a specific registry location. If your driver needs to apply a static offset or scale factor at boot, it should query this path or its own device parameters.