Thanks for the direction. However, I don't see anything to change click timing or turn debouncing on or off.
$ xinput list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ USB Optical Mouse id=8 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Power Button id=7 [slave keyboard (3)] ↳ Chicony USB Keyboard id=9 [slave keyboard (3)] ↳ Chicony USB Keyboard System Control id=10 [slave keyboard (3)] ↳ Chicony USB Keyboard Consumer Control id=11 [slave keyboard (3)] ↳ Eee PC WMI hotkeys id=12 [slave keyboard (3)] [me@bigboy ~]$ [me@bigboy ~]$ xinput --list-props 8 Device 'USB Optical Mouse': Device Enabled (155): 1 Coordinate Transformation Matrix (157): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1. 000000 libinput Natural Scrolling Enabled (289): 0 libinput Natural Scrolling Enabled Default (290): 0 libinput Scroll Methods Available (291): 0, 0, 1 libinput Scroll Method Enabled (292): 0, 0, 0 libinput Scroll Method Enabled Default (293): 0, 0, 0 libinput Button Scrolling Button (294): 2 libinput Button Scrolling Button Default (295): 2 libinput Button Scrolling Button Lock Enabled (296): 0 libinput Button Scrolling Button Lock Enabled Default (297): 0 libinput Middle Emulation Enabled (298): 0 libinput Middle Emulation Enabled Default (299): 0 libinput Accel Speed (300): -0.600000 libinput Accel Speed Default (301): 0.000000 libinput Accel Profiles Available (302): 1, 1 libinput Accel Profile Enabled (303): 0, 1 libinput Accel Profile Enabled Default (304): 1, 0 libinput Left Handed Enabled (305): 0 libinput Left Handed Enabled Default (306): 0 libinput Send Events Modes Available (274): 1, 0 libinput Send Events Mode Enabled (275): 0, 0 libinput Send Events Mode Enabled Default (276): 0, 0 Device Node (277): "/dev/input/event2" Device Product ID (278): 6447, 2326 libinput Drag Lock Buttons (307): <no items> libinput Horizontal Scroll Enabled (308): 1