$ systemctl status pcscd
● pcscd.service - PC/SC Smart Card Daemon
   Loaded: loaded (/lib/systemd/system/pcscd.service; indirect; vendor preset: enabled)
   Active: inactive (dead)

$ sudo systemctl start pcscd

$ systemctl status pcscd
● pcscd.service - PC/SC Smart Card Daemon
   Loaded: loaded (/lib/systemd/system/pcscd.service; indirect; vendor preset: enabled)
   Active: active (running) since Fri 2018-01-05 12:12:52 CET; 1s ago
 Main PID: 24512 (pcscd)
    Tasks: 4
   Memory: 1.2M
      CPU: 16ms
   CGroup: /system.slice/pcscd.service
           └─24512 /usr/sbin/pcscd --foreground --auto-exit