BTN_THUMB         366 include/dt-bindings/input/linux-event-codes.h #define BTN_THUMB		0x121
BTN_THUMB         366 include/uapi/linux/input-event-codes.h #define BTN_THUMB		0x121
BTN_THUMB         366 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define BTN_THUMB		0x121