Xmodmap

keycode 121 = XF86AudioMute NoSymbol XF86AudioMute
keycode 122 = XF86AudioLowerVolume NoSymbol XF86AudioLowerVolume
keycode 123 = XF86AudioRaiseVolume NoSymbol XF86AudioRaiseVolume
keycode 169 = XF86Eject NoSymbol XF86Eject
keycode 170 = XF86Eject XF86Eject XF86Eject XF86Eject
keycode 171 = XF86AudioNext NoSymbol XF86AudioNext
keycode 172 = XF86AudioPlay NoSymbol XF86AudioPlay
keycode 173 = XF86AudioPrev NoSymbol XF86AudioPrev
keycode 174 = XF86AudioStop NoSymbol XF86AudioStop
keycode 175 = XF86AudioRecord NoSymbol XF86AudioRecord
keycode 176 = XF86AudioRewind NoSymbol XF86AudioRewind
keycode 209 = XF86AudioPause NoSymbol XF86AudioPause
keycode 215 = XF86AudioPlay NoSymbol XF86AudioPlay
keycode 216 = XF86AudioForward NoSymbol XF86AudioForward
! Natual scrolling, aka touchscreen or OS X scrolling
pointer = 1 2 3 5 4 7 6 8 9 10 11 12

! Map Caps Lock to Control
keycode 66 = Control_L
clear Lock
add Control = Control_L