---
title: "readAttributeFanMode(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterfancontrol/readattributefanmode(completion:)"
---

# readAttributeFanMode(completion:)

## Declaration

```swift
func readAttributeFanMode(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeFanMode() async throws -> NSNumber
```