KEY_BRIGHTNESSDOWN  301 include/dt-bindings/input/linux-event-codes.h #define KEY_BRIGHTNESSDOWN	224
KEY_BRIGHTNESSDOWN  301 include/uapi/linux/input-event-codes.h #define KEY_BRIGHTNESSDOWN	224
KEY_BRIGHTNESSDOWN  301 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define KEY_BRIGHTNESSDOWN	224