#define DEVICE_NAME_MAX_LENGTH 10
#define DEVICE_SERIAL_MAX_LENGTH 20

typedef struct
{
    struct
    {
        char name[DEVICE_NAME_MAX_LENGTH + 1];
        char serial[DEVICE_SERIAL_MAX_LENGTH + 1];
    }
    device;

    struct
    {
        uint32_t levelMask;
        uint32_t outputMask;
    }
    syslog;

    struct
    {


    }
    dvr;

    struct
    {
        struct
        {
            struct
            {


            }
            courier;

            struct
            {


            }
            client;
        }
        process;


    }
    scl;
}
MainConfig_t;

typedef struct
{
    char*    jsonDescriptor;
    uint32_t structPosition;
    uint32_t flashPosition;
    uint32_t size;
    void*    def;
}
MainConfigEntry_t;

const MainConfigEntry_t MainConfigDescriptor[] =
{
    {"device.name",         offsetof(MainConfig_t, device.name),        128,        DEVICE_NAME_MAX_LENGTH + 1,     (void*)"DEF_NAME"},
    {"device.serial",       offsetof(MainConfig_t, device.serial),      128,        DEVICE_SERIAL_MAX_LENGTH + 1,   (void*)"DEF_NAME"},
    {"syslog.levelMask",    offsetof(MainConfig_t, syslog.levelMask),   128,        sizeof(uint32_t),               (void*)(LOG_LVL_INFO | LOG_LVL_WARN | LOG_LVL_ERR)},
    {"syslog.outputMask",   offsetof(MainConfig_t, syslog.outputMask),  0xFFFFFFFF, sizeof(uint32_t),               (void*)(LOG_LVL_INFO | LOG_LVL_WARN | LOG_LVL_ERR)},

};


void MainConfigLoad(void)
{
    //...
}

MainConfig_t MainConfig;






void ExampleFunction(void)
{

    printf("MachineName: %s", MainConfig.device.name);

}