---
title: IOUSBCompletionActionWithTimeStamp
framework: IOKit
role: symbol
role_heading: Type Alias
platforms: [Mac Catalyst 18.4+, macOS 10.3+]
path: iokit/iousbcompletionactionwithtimestamp
---

# IOUSBCompletionActionWithTimeStamp

## Declaration

```occ
typedef void (*IOUSBCompletionActionWithTimeStamp)(void *target, void *parameter, IOReturn status, UInt32 bufferSizeRemaining, AbsoluteTime timeStamp);
```

## Parameters

- `target`: The target specified in the IOUSBCompletion struct.
- `parameter`: The parameter specified in the IOUSBCompletion struct.
- `status`: Completion status.
- `bufferSizeRemaining`: Bytes left to be transferred.
- `timeStamp`: Time at which the transaction was processed.

## Discussion

Discussion Function called when USB I/O completes.

## See Also

### Callbacks

- [IOUSBCompletionAction](iokit/iousbcompletionaction.md)
- [IOUSBIsocCompletionAction](iokit/iousbisoccompletionaction.md)
- [IOUSBLowLatencyIsocCompletionAction](iokit/iousblowlatencyisoccompletionaction.md)