304     struct Device {  struct in android::FakeEventHub
305         InputDeviceIdentifier identifier;
306         uint32_t classes;
307         PropertyMap configuration;
308         KeyedVector<int, RawAbsoluteAxisInfo> absoluteAxes;
309         KeyedVector<int, bool> relativeAxes;
310         KeyedVector<int32_t, int32_t> keyCodeStates;
311         KeyedVector<int32_t, int32_t> scanCodeStates;
312         KeyedVector<int32_t, int32_t> switchStates;
313         KeyedVector<int32_t, int32_t> absoluteAxisValue;
314         KeyedVector<int32_t, KeyInfo> keysByScanCode;
315         KeyedVector<int32_t, KeyInfo> keysByUsageCode;
316         KeyedVector<int32_t, bool> leds;
317         Vector<VirtualKeyDefinition> virtualKeys;
319         Device(uint32_t classes) :  in Device()  function