listChannels
Read every configured channel (indices 0..7).
Issues up to 8 sequential get_channel_request round-trips. Stops early if a slot returns a disabled channel (firmware convention: disabled slots have role = DISABLED).
Read every configured channel (indices 0..7).
Issues up to 8 sequential get_channel_request round-trips. Stops early if a slot returns a disabled channel (firmware convention: disabled slots have role = DISABLED).