Standard HID over I2C provides raw coordinates, but touch calibration involves transforming those raw values into consistent, accurate screen coordinates across temperature shifts, aging, and mechanical tolerances.
Map your raw ADC (Analog-to-Digital Converter) values to the logical range defined in your HID Report Descriptor. Ensure your Logical Maximum and Physical Maximum are perfectly synchronized with the sensor's physical pitch. 3. Handling the I2C "Ghost Touch" Phenomenon kmdf hid minidriver for touch i2c device calibration best