Run xinput to find the device name of the touchpad:
xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ PIXA3854:00 093A:0274 Mouse id=8 [slave pointer (2)]
⎜ ↳ PIXA3854:00 093A:0274 Touchpad id=9 [slave pointer (2)]
⎜ ↳ ImExPS/2 Generic Explorer Mouse id=11 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Video Bus id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=10 [slave keyboard (3)]
Find more info about the specific device:
xinput list-props "PIXA3854:00 093A:0274 Touchpad"
Enable/disable properties:
xinput set-prop "PIXA3854:00 093A:0274 Touchpad" "libinput Tapping Enabled" 1
xinput set-prop "PIXA3854:00 093A:0274 Touchpad" "libinput Natural Scrolling Enabled" 1
Config:
/etc/X11/xorg.conf.d/30-touchpad.conf:
Section "InputClass"
Identifier "touchpad"
Driver "libinput"
MatchIsTouchpad "on"
Option "Tapping" "on"
Option "TappingButtonMap" "lmr"
Option "Natural Scrolling" "on"
EndSection
Mouse config:
Taken from: i3/i3#3598 (comment)
/etc/X11/xorg.conf.d/99-mouse.conf:
Section "InputClass"
Identifier "Logitech G Pro"
MatchDriver "libinput"
MatchProduct "Logitech G Pro"
MatchIsPointer "on"
Option "AccelProfile" "flat"
Option "AccelSpeed" "-0.1"
EndSection