I am using a Logitech Trackman on X Windows. The Trackman has the following default button mapping: What I want to happen is for both buttons 8 and 9 to enable scrolling. That is, if I hold down either button 8 or 9 and move the ball up and down, the page should scroll as though I'd used a mouse scroll wheel. This almost works: Section "InputClass" Identifier "Logitech USB Trackball" MatchProduct "Logitech USB Trackball" Driver "libinput" Option...
Originally asked by Duncan Bayne on Stack Exchange (superuser) (CC BY-SA 4.0).