GrdVendorCodes

typedef struct
{
    /// @brief Vendor public code necessary for finding feature (0 means param is not used)
    grd_uint32 publicCode;
    /// @brief Vendor private read code necessary for access to feature memory (0 means param is not used)
    grd_uint32 privateReadCode;
    /// @brief Vendor private write code allow to change feature (0 means param is not used)
    ///  Generally, this param must not be specified
    grd_uint32 privateWriteCode;

} GrdVendorCodes;