sudo /etc/init.d/ethercat start
Starting EtherCAT master 1.5.2  done

$ sudo /etc/init.d/ethercat status
Checking for EtherCAT master 1.5.2 
Master0  running

$ ethercat master
Failed to get master information: Inappropriate ioctl for device

$ ethercat slaves
Failed to get master information: Inappropriate ioctl for device