KEY_MICMUTE 338 include/dt-bindings/input/linux-event-codes.h #define KEY_MICMUTE 248 /* Mute / unmute the microphone */ KEY_MICMUTE 338 include/uapi/linux/input-event-codes.h #define KEY_MICMUTE 248 /* Mute / unmute the microphone */ KEY_MICMUTE 338 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define KEY_MICMUTE 248 /* Mute / unmute the microphone */