/*****I2C TEST PROGRAM*****/

#include<stdio.h>
#include<stdlib.h>
#include<linux/i2c-dev.h>
#include<fcntl.h>
#include<string.h>
#include<sys/ioctl.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<unistd.h>



int fd;
//char *i2cdev = "/dev/i2c-0";
char *i2cdev = "/dev/i2c-1";
unsigned char buf[2];


int i2cwrite(char *buf, int len)
{
	if((write(fd, buf, len)) != len){
		return(1);
	}
	return(0);
}

int main()
{
	unsigned char SLAVE_ADDRESS = 0x11;	//SLAVE_ADDRESS
	unsigned char rddat;


	printf("**** RAS32T PORT WRITE ****\n");
	if((fd = open(i2cdev, O_RDWR)) < 0){
		printf("Can't open i2c\n");
		exit(1);
	}
	if(ioctl(fd,I2C_SLAVE, SLAVE_ADDRESS) < 0){
		printf("Unable to get bus access to talk to slave\n");
		exit(1);
	}

//PORT 0 WRITE//
	buf[0] = 0x00;
	buf[1] = 0x11;
		if(i2cwrite(buf,2)){
			printf("write error SA = %02x\n",SLAVE_ADDRESS);
			exit(1);
		}
		if(ioctl(fd, I2C_SLAVE,SLAVE_ADDRESS) < 0) {
		printf("Unable to bus access to talk to slave\n");
		exit(1);
	 	}

//PORT 1 WRITE//
	buf[0] = 0x08;
	buf[1] = 0x22;
		if(i2cwrite(buf,2)){
			printf("write error SA = %02x\n",SLAVE_ADDRESS);
			exit(1);
		}
		if(ioctl(fd, I2C_SLAVE,SLAVE_ADDRESS) < 0) {
		printf("Unable to bus access to talk to slave\n");
		exit(1);
	 	}

//PORT 2 WRITE//
	buf[0] = 0x10;
	buf[1] = 0x33;
		if(i2cwrite(buf,2)){
			printf("write error SA = %02x\n",SLAVE_ADDRESS);
			exit(1);
		}
		if(ioctl(fd, I2C_SLAVE,SLAVE_ADDRESS) < 0) {
		printf("Unable to bus access to talk to slave\n");
		exit(1);
	 	}

//PORT 3 WRITE//
	buf[0] = 0x18;
	buf[1] = 0x44;
		if(i2cwrite(buf,2)){
			printf("write error SA = %02x\n",SLAVE_ADDRESS);
			exit(1);
		}
		if(ioctl(fd, I2C_SLAVE,SLAVE_ADDRESS) < 0) {
		printf("Unable to bus access to talk to slave\n");
		exit(1);
	 	}


	close(fd);
	return 0;
}