keycode 37 = Control_L
keycode 64 = Alt_L


keycode 50 = Shift_L
keycode 62 = Shift_R
keycode 75 = Mode_switch



clear control
clear shift
clear lock
clear mod4
clear mod1

add control = Control_L
add shift = Shift_L Shift_R
add lock = Caps_Lock

! This is AltGr
add mod4 = Mode_switch

add mod1 = Alt_L