---
title: IOUSBSuperSpeedEndpointCompanionDescriptor
framework: IOKit
role: symbol
role_heading: Structure
platforms: [Mac Catalyst 13.0+, macOS 10.7+]
path: iokit/iousbsuperspeedendpointcompaniondescriptor
---

# IOUSBSuperSpeedEndpointCompanionDescriptor

## Declaration

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

## Overview

Overview Descriptor for a SuperSpeed USB Endpoint Companion. See the USB Specification at http://www.usb.org.

## Topics

### Instance Properties

- [bDescriptorType](iokit/iousbsuperspeedendpointcompaniondescriptor/1425434-bdescriptortype.md)
- [bLength](iokit/iousbsuperspeedendpointcompaniondescriptor/1425889-blength.md)
- [bMaxBurst](iokit/iousbsuperspeedendpointcompaniondescriptor/1426113-bmaxburst.md)
- [bmAttributes](iokit/iousbsuperspeedendpointcompaniondescriptor/1425308-bmattributes.md)
- [wBytesPerInterval](iokit/iousbsuperspeedendpointcompaniondescriptor/1425531-wbytesperinterval.md)

## See Also

### Related Documentation

- [IOUSBSuperSpeedEndpointCompanionDescriptor](iokit/usb_h_user-space/iousbsuperspeedendpointcompaniondescriptor.md)