FTD2XX_NET.FTDI.EraseEEPROM C# (CSharp) Method

        public FT_STATUS EraseEEPROM()
        {
            // Initialise ftStatus to something other than FT_OK
            FT_STATUS ftStatus = FT_STATUS.FT_OTHER_ERROR;
            FT_ERROR ftErrorCondition = FT_ERROR.FT_NO_ERROR;

            // If the DLL hasn't been loaded, just return here
            if (hFTD2XXDLL == IntPtr.Zero)
                return ftStatus;

            // Check for our required function pointers being set up
            if (pFT_EraseEE != IntPtr.Zero)
            {
                tFT_EraseEE FT_EraseEE = (tFT_EraseEE)Marshal.GetDelegateForFunctionPointer(pFT_EraseEE, typeof(tFT_EraseEE));

                if (ftHandle != IntPtr.Zero)
                {
                    FT_DEVICE DeviceType = FT_DEVICE.FT_DEVICE_UNKNOWN;
                    // Check that it is not an FT232R or FT245R that we are trying to erase
                    GetDeviceType(ref DeviceType);
                    if (DeviceType == FT_DEVICE.FT_DEVICE_232R)
                    {
                        // If it is a device with an internal EEPROM, throw an exception
                        ftErrorCondition = FT_ERROR.FT_INCORRECT_DEVICE;
                        ErrorHandler(ftStatus, ftErrorCondition);
                    }

                    // Call FT_EraseEE
                    ftStatus = FT_EraseEE(ftHandle);
                }
            }
            else
            {
                if (pFT_EraseEE == IntPtr.Zero)
                {
                    LogB.Debug("FTD2XX: Failed to load function FT_EraseEE.");
                }
            }
            return ftStatus;
        }