Atmel MaxTouch Touch Screen Driver for Chromebook Pixel 1, Acer C720P and Chromebook Pixel 2.
Tested on Pixel 1, Acer C720P and Pixel 2. Works with up to 10 touches.
Huge thanks to the vmulti and DragonFlyBSD projects, which I used for references. Also, thanks to Microsoft for open sourcing the Synaptics RMI I2C driver, which I also used as a reference.