Function wiringPiI2CSetup

wiringPi/wiringPiI2C.c:256–269

 */

int wiringPiI2CSetup (const int devId)
{
  int rev ;
  const char *device ;

  rev = piGpioLayout () ;

  if (rev == 1)
    device = "/dev/i2c-0" ;
  else
    device = "/dev/i2c-1" ;

  return wiringPiI2CSetupInterface (device, devId) ;
}