int usbport_open(char *deviceNumber, FT_HANDLE *ftHandle, int serial);
void usbport_getdata(FT_HANDLE ftHandle);

int usbport_open(char *deviceNumber, FT_HANDLE *ftHandle, int serial) {
	FT_STATUS ftStatus;
	DWORD numDevs;
	char * pcBufLD[MAX_DEVICES + 1];
	char cBufLD[MAX_DEVICES][64];
	for (int i = 0; i < MAX_DEVICES; i++) {
		pcBufLD[i] = cBufLD[i];
	}
	pcBufLD[MAX_DEVICES] = NULL;

	// list devices
	printf("List of devices:\n\n");
	ftStatus = FT_ListDevices(pcBufLD, &numDevs,
			FT_LIST_ALL | FT_OPEN_BY_SERIAL_NUMBER);
	if (ftStatus != FT_OK) {
		printf("Error: FT_ListDevices returned %d\n", (int) ftStatus);
		return -1;
	}
	for (unsigned int i = 0; ((i < MAX_DEVICES) && (i < numDevs)); i++) {
		printf(" - Device %d Serial Number - %s\n", i, cBufLD[i]);
	}
	ftStatus = FT_OpenEx(deviceNumber, FT_OPEN_BY_SERIAL_NUMBER, ftHandle);
	if (ftStatus == FT_OK) {
		printf("\n Port opened (0x%s)", deviceNumber);
	} else {
		printf("\n Device fail open");
		return 0;
	}

	ftStatus |= FT_ResetDevice(*ftHandle); 	//Reset USB device
	ftStatus |= FT_Purge(*ftHandle, FT_PURGE_RX | FT_PURGE_TX);// Purge transmit and receive buffers
	ftStatus |= FT_SetUSBParameters(*ftHandle, USB_TRANSFER_SIZE, 0);//Set USB request transfer size
	ftStatus |= FT_SetTimeouts(*ftHandle, 100, 100);//Sets the read and write timeouts in milliseconds for the FT2232H
	ftStatus |= FT_SetLatencyTimer(*ftHandle, 2);//Set the latency timer
	ftStatus |= FT_SetBitMode(*ftHandle, 0xFF, FT_BITMODE_RESET); // Turn on Sync mode
	delay_ms(100);
	ftStatus |= FT_SetBitMode(*ftHandle, 0xFF, FT_BITMODE_SYNC_FIFO); // Turn on Sync mode
	if(serial) {
		ftStatus |= FT_SetBaudRate(*ftHandle, 9600);// Set baud rate to 9600
		ftStatus |= FT_SetDataCharacteristics(*ftHandle, FT_BITS_8, FT_STOP_BITS_1, FT_PARITY_NONE);// Set to communicate at 8N1
		ftStatus |= FT_SetFlowControl(*ftHandle, FT_FLOW_NONE, 0, 0);// Disable hardware / software flow control
	}
	else {
	}
	if (ftStatus != FT_OK) {
		printf(" >> Fail on initialize USB device <<\n");
		FT_Close(*ftHandle);
		return 0;
	}
	return 1;

}

void usbport_getdata(FT_HANDLE ftHandle) {
	unsigned long int throughput = 0;
	FT_STATUS ftStatus;
	DWORD dwNumBytesRead = 0, dwNumInputBuffer = USB_TRANSFER_SIZE;
	int done = 0;
	int delay;
	int errors = 0;

	timing_start();
	while (done == 0) {
		dwNumInputBuffer = USB_TRANSFER_DATA_SIZE;
		ftStatus = FT_Read(ftHandle, &InputBuffer, dwNumInputBuffer,
				&dwNumBytesRead); //Read out the data from input buffer
		if (ftStatus != FT_OK) {
			printf("Fail reading from USB device!\n");
		}
		//display_buffer_hex(InputBuffer, dwNumBytesRead);
		errors += continuos_data_validate(InputBuffer, dwNumBytesRead);
		delay = timing_end();
		throughput += dwNumBytesRead;
		if (delay >= 1000) {
			timing_start();
			printf(" > %.2f Mbps (%d ms), %lu bytes/s (%d errors)\n",
					(float) ((throughput * 8)) / 1000000, delay, throughput, errors);
			throughput = 0;
			errors = 0;
		}
		if (_kbhit() == 1)
			done = 1;

	}
	return;
}