---
title: IOUSBIsocCompletion
framework: IOKit
role: symbol
role_heading: Structure
platforms: [Mac Catalyst 18.4+, macOS 10.0+]
path: iokit/iousbisoccompletion
---

# IOUSBIsocCompletion

## Declaration

```occ
typedef struct IOUSBIsocCompletion {
    ...
} IOUSBIsocCompletion;
```

## Overview

Overview Struct specifying action to perform when an Isochronous USB I/O completes.

## Topics

### Instance Properties

- [action](iokit/iousbisoccompletion/1425868-action.md)
- [parameter](iokit/iousbisoccompletion/1425793-parameter.md)
- [target](iokit/iousbisoccompletion/1426317-target.md)