<!--
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    "DriverKit: 21.0 -"
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  "framework" : "AudioDriverKit",
  "identifier" : "/documentation/AudioDriverKit/IOUserAudioStream/SetCurrentStreamFormat",
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    "kind" : "Instance Method",
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    "preciseIdentifier" : "c:@S@IOUserAudioStream@F@SetCurrentStreamFormat#*1$@N@AudioDriverKit@S@IOUserAudioStreamBasicDescription#"
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  "title" : "SetCurrentStreamFormat"
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# SetCurrentStreamFormat

Sets the current stream format to a given audio stream basic description.

```
kern_return_t SetCurrentStreamFormat(const IOUserAudioStreamBasicDescription *in_format);
```

## Parameters

`in_format`

A pointer to an `IOIUserAudioStreamBasicDescription` to use as the new format.

## 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 format 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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