---
title: queue
framework: iousbhost
role: symbol
role_heading: Instance Property
path: iousbhost/iousbhostobject/queue
---

# queue

The queue for servicing input/output requests.

## Declaration

```swift
var queue: dispatch_queue_t { get }
```

## Discussion

Discussion Use this queue only for asynchronous input/output requests.

## See Also

### Managing the Object Life Cycle

- [IOUSBHostObjectInitOptions](iousbhost/iousbhostobjectinitoptions.md)
- [IOUSBHostInterestHandler](iousbhost/iousbhostinteresthandler.md)
- [ioService](iousbhost/iousbhostobject/ioservice.md)
- [destroy()](iousbhost/iousbhostobject/destroy().md)