BTN_MIDDLE        357 include/dt-bindings/input/linux-event-codes.h #define BTN_MIDDLE		0x112
BTN_MIDDLE        357 include/uapi/linux/input-event-codes.h #define BTN_MIDDLE		0x112
BTN_MIDDLE        357 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define BTN_MIDDLE		0x112