COnfiguration for M570 trackball

99-M570Logitech.conf

Section "InputClass" 
    # User-defined name for this profile/input class
    Identifier      "Logitech M570"
    # Tailed /var/log/Xorg.0.log to figure out the following
    MatchProduct    "Logitech M570"
    MatchIsPointer  "on"
    MatchDevicePath "/dev/input/event*"
    Driver          "evdev"
    ## OPTIONS
    Option "SendCoreEvents" "true"
    # EmulateWheel refers to emulating a mouse wheel using the trackball
    Option "EmulateWheel" "true"
    # Set to middle-click
    Option "EmulateWheelButton" "9"
    # Affects distance trackball needs to move register scroll movement 
    Option "EmulateWheelInertia" "10"
    # Timeout between EmulateWheelButton click and "emulation" to begin
    Option "EmulateWheelTimeout" "200"
    # Comment out XAxis if you don't want horizontal scroll
    Option "ZAxisMapping" "4 5"
    Option "XAxisMapping" "6 7"
    Option "DeviceAccelProfile" "2"
    Option "AdaptiveDeceleration" "2"
    Option "VelocityScale" "1.7
EndSection