i2c write()

Hi,

I write a driver code for  a smart switch. When I examine the signals are SDA and SCL in scope, I don't see right values.I see slave address byte is 0x60 every sending.

Do you think why I don't see right data?

Is write() function right?

Is there any problem in "ioclt()" function?

Please help me.

Thanks.

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



int main(void)
{
    gpio_export(CONTROL);    
    gpio_dir_out(CONTROL);
    set_gpio_value(CONTROL, 0);

    unsigned char TxBuf_backlight [5];

    set_gpio_value(CONTROL, 1);
    gpio_export(SCREENKEY_INPUT);        //GPIO 158 (A18) exported as SW
    gpio_dir_in(SCREENKEY_INPUT);        //Direction of the GPIO 158 defined as in


//open the device file
    int file;
      int adapter_nr = 2; /* probably dynamically determined */
      char filename[20];
 
      sprintf(filename,"/dev/i2c-%d",adapter_nr);
      if ((file = open(filename,O_RDWR)) < 0) {
      perror("Error: ");
        exit(1);
      }


//what device address you want to communicate
    int addr = 0x60; /* The I2C address */
    printf("I2C device address: 0x%x\n",addr);
      if (ioctl(file,I2C_SLAVE,addr) < 0) {
      perror("Error: ");
       exit(1);
     }


//Write to the slave
     TxBuf_backlight[0] = 0X10;
    if ( write(file,TxBuf_backlight,1) != 1) {
        perror("Error: ");
    }
//I see "0x60" in scope. This is slave adress.I must have seen 0x10
     TxBuf_backlight[1] = 0XEF;
    if ( write(file,TxBuf_backlight,1) != 1) {
        perror("Error: ");
    }

//I see "0x60" in scope again. This is slave adress.I must have seen 0xEF

    gpio_unexport(SCREENKEY_INPUT);
    set_gpio_value(CONTROL, 0);
    return 0;
}