The I2C (Inter-Integrated Circuit) communication protocol. These touchscreens are commonly found in various devices, such as smartphones, tablets, laptops, and other touch-enabled devices.
The maXTouch technology refers to a series of touch controllers designed and developed by Microchip Technology (which acquired Atmel in 2016). The I2C-HID driver is responsible for allowing Windows operating systems to communicate with and control the touchscreen device, enabling touch functionality like tapping, swiping, and other gestures.