---
title: DDDeviceEvent.EventType.unknown
framework: DeviceDiscoveryExtension
role: symbol
role_heading: Case
path: devicediscoveryextension/dddeviceevent/eventtype-swift.enum/unknown
---

# DDDeviceEvent.EventType.unknown

A value for uninitialized event types.

## Declaration

```swift
case unknown
```

## See Also

### Distinguishing event types

- [DDDeviceEvent.EventType.deviceFound](devicediscoveryextension/dddeviceevent/eventtype-swift.enum/devicefound.md)
- [DDDeviceEvent.EventType.deviceLost](devicediscoveryextension/dddeviceevent/eventtype-swift.enum/devicelost.md)
- [DDDeviceEvent.EventType.deviceChanged](devicediscoveryextension/dddeviceevent/eventtype-swift.enum/devicechanged.md)