<!--
{
  "availability" : [
    "iOS: 18.4.0 -",
    "iPadOS: 18.4.0 -",
    "macCatalyst: 18.4.0 -",
    "macOS: 15.4.0 -",
    "tvOS: 18.4.0 -",
    "visionOS: 2.4.0 -",
    "watchOS: 11.4.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Matter",
  "identifier" : "/documentation/Matter/MTRDeviceControllerDelegate/controller(_:read:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Matter"
    ],
    "preciseIdentifier" : "c:objc(pl)MTRDeviceControllerDelegate(im)controller:readCommissioneeInfo:"
  },
  "title" : "controller(_:read:)"
}
-->

# controller(_:read:)

Notify the delegate when commissioning infomation has been read from the commissionee.

```
optional func controller(_ controller: MTRDeviceController, read info: MTRCommissioneeInfo)
```

## Discussion

Note that this notification happens before device attestation is performed,
so the information delivered by this notification should not be trusted.

---

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)