---
title: IOUSBConfigurationDescHeader
framework: IOKit
role: pseudoSymbol
platforms: []
path: iokit/usb_h_user-space/iousbconfigurationdescheader
---

# IOUSBConfigurationDescHeader

## Declaration

```occ
struct IOUSBConfigurationDescHeader {
   UInt8 bLength;
   UInt8 bDescriptorType;
   UInt16 wTotalLength;
};
```

## Overview

Header of a IOUSBConfigurationDescriptor. Used to get the total length of the descriptor.

## See Also

### Related Documentation

- [IOUSBConfigurationDescHeader](../../kernel/iousbconfigurationdescheader.md)