---
title: IOUSBHostTime
framework: iousbhost
role: symbol
role_heading: Type Alias
path: iousbhost/iousbhosttime
---

# IOUSBHostTime

The absolute time.

## Declaration

```swift
typealias IOUSBHostTime = UInt64
```

## See Also

### Sending Isochronous I/O

- [IOUSBHostIsochronousCompletionHandler](iousbhost/iousbhostisochronouscompletionhandler.md)
- [IOUSBHostIsochronousFrame](iousbhost/iousbhostisochronousframe.md)
- [enqueueIORequest(with:frameList:frameListCount:firstFrameNumber:completionHandler:)](iousbhost/iousbhostpipe/enqueueiorequest(with:framelist:framelistcount:firstframenumber:completionhandler:).md)
- [sendIORequest(with:frameList:frameListCount:firstFrameNumber:)](iousbhost/iousbhostpipe/sendiorequest(with:framelist:framelistcount:firstframenumber:).md)