Quick Fix for Your Multimedia Keys

If your multimedia keys give this warning in dmesg:
atkbd.c: Unknown key pressed (translated set 2, code 0xf7 on isa0060/serio0).
atkbd.c: Use 'setkeycodes e077 ' to make it known.
then you need to look up the right number in include/linux/input.h e.g.here. E.g.
#define KEY_BRIGHTNESSDOWN 224
#define KEY_BRIGHTNESSUP 225
And use that number with setkeycodes, e.g. for my system:
setkeycodes e077 224 # brightness down
setkeycodes e078 225 # brightness up
setkeycodes 0xee 212 # webcam
setkeycodes 0xe4 240 # touchpad -> unknown
setkeycodes e076 238 # wifi + bluetooth
And now your system (e.g. KDE or Gnome) should immediately recognize the keys. Post the information to your distribution and it should be included in future releases. Just write the commands (without sudo) into /etc/rc.local to make them permanent for now.

If you get stuck, here's a good guide.

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