+ std::map<unsigned, std::string> channel_names; // Set using Nageru.set_channel_name(). Protected by <m>.
+ std::map<unsigned, int> channel_signals; // Set using Nageru.set_channel_signal(). Protected by <m>.
+ std::map<unsigned, bool> channel_supports_wb; // Set using Nageru.set_supports_wb(). Protected by <m>.