Resources

Core Projects

• https://code.launchpad.net/mtdev - converts kernel events to modern slotted B type events
• https://gitlab.freedesktop.org/libinput/libinput - the workhorse of touchpad hardware unification
• https://gitlab.freedesktop.org/xorg/xserver - the most well-established graphical environment on Linux

Project Documentation

Some good overview docs:

• What is libinput? (libinput docs)
• libinput - touchpads (libinput docs)

Help is also available for end users:

• Arch Linux - libinput (troubleshooting & customization)

Tools

• evemu (C, Python)
  • Record input events and play them back on a virtual device
• cleartouch (Zig, 2021)
  • Visualize /dev/input/event* kernel events via GL (works on KDE, Gnome, etc.)

• mtview (C, 2010-2016)
  • Visualize /dev/input/event* kernel events with GTK
• mtdiag-qt (C++, 2012-2017)
  • Visualize and diagnose kernel multitouch events

Blogs

• who-t Peter Hutterer’s tech blog, focused mainly on libinput and related development over the years

Presentations

XDC2014: Peter Hutterer - Consolidating the input stacks with libinput (YouTube) Peter introduces libinput