KEY_CHANNELDOWN 475 include/dt-bindings/input/linux-event-codes.h #define KEY_CHANNELDOWN 0x193 /* Channel Decrement */ KEY_CHANNELDOWN 475 include/uapi/linux/input-event-codes.h #define KEY_CHANNELDOWN 0x193 /* Channel Decrement */ KEY_CHANNELDOWN 475 scripts/dtc/include-prefixes/dt-bindings/input/linux-event-codes.h #define KEY_CHANNELDOWN 0x193 /* Channel Decrement */