EV_KEY 39 include/dt-bindings/input/linux-event-codes.h #define EV_KEY 0x01 EV_KEY 39 include/uapi/linux/input-event-codes.h #define EV_KEY 0x01 EV_KEY 39 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define EV_KEY 0x01