Multimedia keyboards

Toggle Fn/F* keys

Fn + Capslock  # toggles fn-keys vs f-keys (at least logitech)

Prefer FunctionKeys to MediaKeys

# temporary:
su
echo 2 >> /sys/module/hid_apple/parameters/fnmode

# permanent:
echo "options hid_apple swap_opt_cmd=1" > /etc/modprobe.d/hid_apple.conf