Tells the delegate that the peripheral manager opened an L2CAP channel.
- iOS 11.0+
- macOS 10.13+
- Mac Catalyst 13.0+
- tvOS 11.0+
- watchOS 4.0+
- Core Bluetooth
The peripheral manager that opened the channel.
The channel opened by the manager.
The error that occurred, or
nilif no error occurred.
The peripheral manager calls this method after you call