format = enum {
  grey;
  yuyv;
  bgr888;
  rgb888;
}

stream_request = record {
  index: i32;
  width: i32;
  height: i32;
  format: format;
  fps: i32;
}

device_usb_info = record {
  index: i32;
  name: string;
  sn: string;
}

device = interface +c {
  static query(): list<device_usb_info>;

  static create(info: device_usb_info): device;

  get_stream_requests(): list<stream_request>;
  config_stream_request(request: stream_request);

  start();
  stop();
}