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  "title" : "SetHasAudio"
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# SetHasAudio

Sets a Boolean value that indicates the box’s audio support.

```
kern_return_t SetHasAudio(bool in_has_audio);
```

## Parameters

`in_has_audio`

`true` if the box supports audio; otherwise, `false`.

## Return Value

<doc://com.apple.documentation/documentation/DriverKit/kIOReturnSuccess> on success, or another value if an error occurs. For a list of error codes, see <doc://com.apple.documentation/documentation/DriverKit/error-codes>.

## Discussion

If successful, changing the audio support value sends a notification to the host to update the object state.

This method synchronizes by using the work queue created by the object.

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