A Detailed Look At The Evdev Protocol

Linux input developer Peter Hutterer of Red Hat has provided a look at the evdev protocol for those wondering about its design.

Evdev for the uninitiated is the generic input event interface that's part of the Linux kernel. Evdev is commonly used by Linux desktops -- both X.Org and Wayland/Weston -- for input devices implemented by kernel drivers.

For those looking to better understand evdev, Peter's blog post covers the protocol for relative devices/keyboards, events, absolute devices, multitouch, and more.

This lengthy blog post about evdev can be found at Blogspot.com.