rs2::context ctx; rs2::device_list devices = ctx.query_devices(); rs2::device dev = devices[0]; std::vector<rs2::sensor> sensors = dev.query_sensors(); rs2::sensor sensor = sensors[0]; sensor.set_option(RS2_OPTION_CONFIDENCE_THRESHOLD, 0.0); sensor.set_option(RS2_OPTION_AVALANCHE_PHOTO_DIODE, 8);