---
title: "deviceController(_:nodeID:downloadLogOf:timeout:completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrxpcserverprotocol_mtrdevice/devicecontroller(_:nodeid:downloadlogof:timeout:completion:)"
---

# deviceController(_:nodeID:downloadLogOf:timeout:completion:)

## Declaration

```swift
optional func deviceController(_ controller: UUID, nodeID: NSNumber, downloadLogOf type: MTRDiagnosticLogType, timeout: TimeInterval, completion: @escaping @Sendable (URL?, (any Error)?) -> Void)
```

```swift
optional func deviceController(_ controller: UUID, nodeID: NSNumber, downloadLogOf type: MTRDiagnosticLogType, timeout: TimeInterval) async throws -> URL
```