---
title: owningPortUID
framework: avfaudio
role: symbol
role_heading: Instance Property
path: avfaudio/avaudiosessionchanneldescription/owningportuid
---

# owningPortUID

The unique identifier (UID) for this channel’s owning port.

## Declaration

```swift
var owningPortUID: String { get }
```

## Discussion

Discussion You can use the value of this property along with the value of the channelNumber property to communicate with specific hardware channels.

## See Also

### Getting the Channel Information

- [channelName](avfaudio/avaudiosessionchanneldescription/channelname.md)
- [channelNumber](avfaudio/avaudiosessionchanneldescription/channelnumber.md)
- [channelLabel](avfaudio/avaudiosessionchanneldescription/channellabel.md)