Kmdf Hid Minidriver For Touch I2c Device Calibration Best Better -
if (NT_SUCCESS(status)) // Read the raw binary calibration block status = WdfRegistryQueryValue(hKey, &valueName, &CalibrationData, sizeof(CALIBRATION_STRUCT), NULL, NULL); WdfRegistryClose(hKey);
Implementing calibration in a KMDF HID minidriver for an I2C touch device is powerful but must be done carefully. Follow these best practices: kmdf hid minidriver for touch i2c device calibration best
A common issue with touch I2C drivers is inverted axes. Your driver should include logic to: Touch screen is horizontally inverted - Microsoft Q&A if (NT_SUCCESS(status)) // Read the raw binary calibration
Windows allows users to calibrate the screen (System Control Panel -> Tablet PC Settings). This process generates a calibration matrix. kmdf hid minidriver for touch i2c device calibration best
