Implement a second IOCTL to delete the registry key and send a "Reset to Factory" Feature Report (usually Report ID 0x01 , byte 2 = 0x01 ). This is critical for field maintenance.
When developing or troubleshooting a KMDF minidriver, accurate calibration starts at the firmware and descriptor level: kmdf hid minidriver for touch i2c device calibration best
: Microsoft recommends using the HIDI2C.sys inbox driver for maximum compatibility. Custom minidrivers should only be used if you require non-standard bus controllers or specific pre-processing of touch data. Implement a second IOCTL to delete the registry
To ensure your calibration logic is robust: kmdf hid minidriver for touch i2c device calibration best
Save the calibration data to align the digitizer precisely with the display. Implement Firmware-Level Calibration