1*4882a593Smuzhiyun[Unit] 2*4882a593SmuzhiyunDescription=Precision Time Protocol system clock synchronization 3*4882a593SmuzhiyunAfter=ptp4l.service 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun[Service] 6*4882a593SmuzhiyunExecStart=/usr/sbin/phc2sys -s /dev/ptp0 -c CLOCK_REALTIME -w -S 1.0 7*4882a593SmuzhiyunRestart=always 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun[Install] 10*4882a593SmuzhiyunWantedBy=multi-user.target 11