Can be used to change the orientation of a touchscreen. Example usage with swaymsg: # identity swaymsg input type:touch calibration_matrix '"1 0 0 0 1 0"' # 90 degree clockwise swaymsg input type:touch calibration_matrix '"0 -1 1 1 0 0"' # 180 degree clockwise swaymsg input type:touch calibration_matrix '"-1 0 1 0 -1 1"' # 270 degree clockwise swaymsg input type:touch calibration_matrix '"0 1 0 -1 0 1"' Documentation: https://wayland.freedesktop.org/libinput/doc/latest/absolute-axes.html#calibration-of-absolute-devices