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# IOUSBSuperSpeedPlusIsochronousEndpointCompanionDescriptor

The descriptor for a SuperSpeedPlus Isochronous USB Endpoint Companion.

```
struct IOUSBSuperSpeedPlusIsochronousEndpointCompanionDescriptor;
```

## Overview

See USB 3.1 9.6.8: SuperSpeedPlus Isochronous Endpoint Companion in the USB Specification at <http://www.usb.org>.

## Topics

### Accessing the Descriptor Properties

[`uint8_t bLength;`](/documentation/USBDriverKit/IOUSBSuperSpeedPlusIsochronousEndpointCompanionDescriptor/bLength)

[`uint8_t bDescriptorType;`](/documentation/USBDriverKit/IOUSBSuperSpeedPlusIsochronousEndpointCompanionDescriptor/bDescriptorType)

[`uint16_t wReserved;`](/documentation/USBDriverKit/IOUSBSuperSpeedPlusIsochronousEndpointCompanionDescriptor/wReserved)

[`uint32_t dwBytesPerInterval;`](/documentation/USBDriverKit/IOUSBSuperSpeedPlusIsochronousEndpointCompanionDescriptor/dwBytesPerInterval)



---

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