BTN_WHEEL 418 include/dt-bindings/input/linux-event-codes.h #define BTN_WHEEL 0x150 BTN_WHEEL 418 include/uapi/linux/input-event-codes.h #define BTN_WHEEL 0x150 BTN_WHEEL 418 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define BTN_WHEEL 0x150