---
title: IOUSBLowLatencyIsocFrame
framework: IOKit
role: pseudoSymbol
platforms: []
path: iokit/usb_h_user-space/iousblowlatencyisocframe
---

# IOUSBLowLatencyIsocFrame

## Declaration

```occ
struct IOUSBLowLatencyIsocFrame {
   IOReturn frStatus;
   UInt16 frReqCount;
   UInt16 frActCount;
   AbsoluteTime frTimeStamp;
};
```

## Overview

Structure used to encode information about each isoc frame that is processed at hardware interrupt time (low latency).

## Topics

### Fields

- [frStatus](../iousblowlatencyisocframe/1425755-frstatus.md)
- [frReqCount](../iousblowlatencyisocframe/1425652-frreqcount.md)
- [frActCount](../iousblowlatencyisocframe/1426008-fractcount.md)
- [frTimeStamp](../iousblowlatencyisocframe/1426222-frtimestamp.md)

## See Also

### Related Documentation

- [IOUSBLowLatencyIsocFrame](../../kernel/iousblowlatencyisocframe.md)