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# configurationDescriptor

The currently selected configuration descriptor.

```
var configurationDescriptor: UnsafePointer<IOUSBConfigurationDescriptor>? { get }
```

## Return Value

A pointer to the device’s configuration descriptor, or `nil` if no matching descriptor returns.

## Discussion> Note:
> The ``doc://com.apple.iousbhost/documentation/IOUSBHost/IOUSBHostDevice`` performs memory management. Don’t free the descriptor, and assume it is valid as long as the ``doc://com.apple.iousbhost/documentation/IOUSBHost/IOUSBHostDevice`` hasn’t called ``doc://com.apple.iousbhost/documentation/IOUSBHost/IOUSBHostObject/destroy()``.

---

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