: Windows stores specific calibration results in the registry at: HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\TOUCH\CalibrationData . Implementation and Troubleshooting
Instead of the registry, you can embed per-device calibration into the using a custom _DSM method. The driver, during EvtDevicePrepareHardware, parses ACPI and extracts: kmdf hid minidriver for touch i2c device calibration
NTSTATUS WriteCalibrationToRegistry( WDFDEVICE Device, PVOID Data, ULONG Size, ULONG Version) : Windows stores specific calibration results in the
Use a linear transformation matrix to adjust for rotation, inversion, or scaling issues. Inversion Example: If the -axis is flipped, kmdf hid minidriver for touch i2c device calibration
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TouchCalibMini\Parameters] "CalibMatrix"=hex:01,00,00,00,...