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Matter / MTRBaseClusterSmokeCOAlarm / readAttributeCOState(completion:)

readAttributeCOState(completion:)

Declaration

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

func readAttributeCOState() async throws -> NSNumber

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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