KEY_SEND 311 include/dt-bindings/input/linux-event-codes.h #define KEY_SEND 231 /* AC Send */ KEY_SEND 311 include/uapi/linux/input-event-codes.h #define KEY_SEND 231 /* AC Send */ KEY_SEND 311 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define KEY_SEND 231 /* AC Send */