Function wiringPiI2CSetupInterface

wiringPi/wiringPiI2C.c:236–247

 */

int wiringPiI2CSetupInterface (const char *device, int devId)
{
  int fd ;

  if ((fd = open (device, O_RDWR)) < 0)
    return wiringPiFailure (WPI_ALMOST, "Unable to open I2C device: %s\n", strerror (errno)) ;

  if (ioctl (fd, I2C_SLAVE, devId) < 0)
    return wiringPiFailure (WPI_ALMOST, "Unable to select I2C device: %s\n", strerror (errno)) ;

  return fd ;
}


/*