KEY_LIGHTS_TOGGLE 591 include/dt-bindings/input/linux-event-codes.h #define KEY_LIGHTS_TOGGLE 0x21e /* Reading light on or off */ KEY_LIGHTS_TOGGLE 591 include/uapi/linux/input-event-codes.h #define KEY_LIGHTS_TOGGLE 0x21e /* Reading light on or off */ KEY_LIGHTS_TOGGLE 591 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define KEY_LIGHTS_TOGGLE 0x21e /* Reading light on or off */