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# customVirtioDeviceWillReset(_:)

The method the framework calls when a device resets.

```
optional func customVirtioDeviceWillReset(_ device: VZCustomVirtioDevice)
```

## Parameters

`device`

The device invoking the delegate method.

## Discussion

You can initiate a reset by calling the [`requestReset()`](/documentation/Virtualization/VZCustomVirtioDevice/requestReset()) method, and the guest driver can also initiate the reset by itself. The framework calls this method when the reset completes for either scenario.

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