These constants determine the type of a Special Function
FUNC_OVERRIDE_CHANNEL
FUNC_TRAINER
FUNC_INSTANT_TRIM
FUNC_RESET
FUNC_SET_TIMER
FUNC_ADJUST_GVAR
FUNC_VOLUME
FUNC_SET_FAILSAFE
FUNC_RANGECHECK
FUNC_BIND
FUNC_PLAY_SOUND
FUNC_PLAY_TRACK
FUNC_PLAY_VALUE
FUNC_PLAY_SCRIPT
FUNC_RESERVE5
FUNC_BACKGND_MUSIC
FUNC_BACKGND_MUSIC_PAUSE
FUNC_VARIO
FUNC_HAPTIC
FUNC_LOGS
FUNC_BACKLIGHT
FUNC_SCREENSHOT
FUNC_RACING_MODE
FUNC_DISABLE_TOUCH