Skip to main content

Apple Developer Docs

Fonts Symbols

Matter / MTRBaseClusterSmokeCOAlarm / readAttributeSmokeState(completion:)

readAttributeSmokeState(completion:)

Declaration

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

func readAttributeSmokeState() async throws -> NSNumber

Open on developer.apple.com

MatterInstance Method

iOS 17.6+iPadOS 17.6+Mac Catalyst 17.6+macOS 14.6+tvOS 17.6+visionOS 1.0+watchOS 10.6+

Built on 2026-05-07