/*		
	To build use the following gcc statement 
	(assuming you have the d2xx library in the /usr/local/lib directory).
	gcc -o bitmode main.c -L. -lftd2xx -Wl,-rpath /usr/local/lib
*/

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <ftd2xx.h>

// Globals
FT_HANDLE ftHandle = NULL;

void quit()
{  
	if(ftHandle != NULL) {
		FT_Close(ftHandle);
		ftHandle = NULL;
		printf("Closed device\n");
	}

	exit(1);
}

int main(int argc, char *argv[])
{
	DWORD dwBytesInQueue = 0;
	FT_STATUS	ftStatus;
	unsigned char ucMode = 0x00;
	int iport;
	
	if(argc > 1) {
		sscanf(argv[1], "%d", &iport);
	}
	else {
		iport = 0;
	}

    signal(SIGINT, quit);		// trap ctrl-c call quit fn 
	
	ftStatus = FT_Open(0, &ftHandle);
	if(ftStatus != FT_OK) {
		/* 
			This can fail if the ftdi_sio driver is loaded
		 	use lsmod to check this and rmmod ftdi_sio to remove
			also rmmod usbserial
		 */
		printf("FT_Open(%d) failed = %d\n", iport, ftStatus);
		return 1;
	}
		
	ftStatus = FT_SetBitMode(ftHandle, 0xFF, 1);
	if(ftStatus != FT_OK) {
		printf("Failed to set bit mode\n");	
	}
	FT_SetBaudRate(ftHandle, 9600);
	int readsize=0;
	FT_Write(ftHandle, &ucMode, 1, &dwBytesInQueue);
    ftStatus = FT_Read(ftHandle, &ucMode, 1, &readsize);
	//ftStatus = FT_GetBitMode(ftHandle, &ucMode);

	if(ftStatus != FT_OK) {
		printf("Failed to get bit mode\n");
	}
	else {
		printf("ucMode = 0x%X\n", ucMode);	
	}
	if(ftHandle != NULL) {
		FT_Close(ftHandle);
		ftHandle = NULL;
	}
	
	return 0;
}