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

# IOUSBIsocFrame

## Declaration

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

## Overview

Overview Structure used to encode information about each isoc frame.

## Topics

### Instance Properties

- [frActCount](iokit/iousbisocframe/1426257-fractcount.md)
- [frReqCount](iokit/iousbisocframe/1425957-frreqcount.md)
- [frStatus](iokit/iousbisocframe/1425665-frstatus.md)