<!--
{
  "availability" : [
    "DriverKit: 19.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SerialDriverKit",
  "identifier" : "/documentation/SerialDriverKit/IOUserSerial/DisconnectQueues",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "SerialDriverKit"
    ],
    "preciseIdentifier" : "c:@S@IOUserSerial@F@DisconnectQueues#"
  },
  "title" : "DisconnectQueues"
}
-->

# DisconnectQueues

Releases the buffers that manage data moving to and from the device.

```
virtual kern_return_t DisconnectQueues();
```

## Return Value

<doc://com.apple.documentation/documentation/DriverKit/kIOReturnSuccess> on success, or another value if an error occurs. See <doc://com.apple.documentation/documentation/DriverKit/error-codes>.

## Discussion

During the cleanup of your driver, call this method to disconnect the data queues you use to buffer data. If you provided the buffer objects at configuration time, the system releases its references to the objects you provided.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)