BTN_TR 391 include/dt-bindings/input/linux-event-codes.h #define BTN_TR 0x137 BTN_TR 391 include/uapi/linux/input-event-codes.h #define BTN_TR 0x137 BTN_TR 391 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define BTN_TR 0x137