KowaCamera C++ lib. Software controller for KOWA low-light camera

class KowaCamera : public cr::camera::Camera
{
public:

    /// Get Camera class version.
    static std::string getVersion();

    /// Init camera controller.
    bool openCamera(std::string initString) override;
        
    /// Init camera controller by parameters class.
    bool initCamera(CameraParams& params) override;

    /// Close camera serial port.
    void closeCamera() override;

    /// Get camera connection status.
    bool isCameraOpen() override;
        
    /// Get camera open status.
    bool isCameraConnected() override;

    /// Set the camera controller param.
    bool setParam(CameraParam id, float value) override;

    /// Get the camera controller param.
    float getParam(CameraParam id) override;

    /// Get the camera controller params.
    void getParams(CameraParams& params) override;

    /// Execute camera controller action command.
    bool executeCommand(CameraCommand id) override;

    /// Decode and execute command.
    bool decodeAndExecuteCommand(uint8_t* data, int size) override;
};

#include <iostream>
#include "KowaCamera.h"

int main(void)
{
    // Init camera controller.
    cr::camera::KowaCamera controller;
    if (!controller.openCamera("/dev/ttyUSB0;9600"))
        return -1;

    while (true)
    {
        // Main dialog.
        int option = -1;
        std::cout << "Options (1:Zoom tele, 2:Zoom wide, 3:Zoom stop), " <<
        "4:Brightness+1, 5:Brightness-1 : ";
        std::cin >> option;

        // Get all camera params.
        cr::camera::CameraParams cameraParams;
        controller.getParams(cameraParams);

        switch (option)
        {
        case 1:
            controller.setParam(cr::camera::CameraParam::BRIGHTNESS,
            cameraParams.brightness + 1);
            break;
        case 2:
            controller.setParam(cr::camera::CameraParam::BRIGHTNESS,
            cameraParams.brightness - 1);
            break;
        default:
            break;
        }
    }
    return 1;
}