● openvfd.service - OpenVFD Service
   Loaded: loaded (/usr/lib/systemd/system/openvfd.service; disabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Tue 2020-01-07 00:20:21 CET; 2s ago
  Process: 4948 ExecStart=/bin/sh -c [ `cat /proc/device-tree/openvfd/compatible` = "open,vfd" ] && /sbin/modprobe openvfd vfd_gpio_clk=${vfd_gpio_clk} vfd_gpio_dat=${vfd_gpio_dat} vfd_gpio_stb=${vfd_gpio_stb:-0,0,0xFF} vfd_gpio0=${vfd_g
  Process: 4984 ExecStopPost=/usr/sbin/rmmod openvfd (code=exited, status=0/SUCCESS)
 Main PID: 4948 (code=exited, status=1/FAILURE)

Jan 07 00:20:21 Obyvacka systemd[1]: Started OpenVFD Service.
Jan 07 00:20:21 Obyvacka sh[4948]: Open device failed.
Jan 07 00:20:21 Obyvacka sh[4948]: : No such file or directory
Jan 07 00:20:21 Obyvacka systemd[1]: openvfd.service: Main process exited, code=exited, status=1/FAILURE
Jan 07 00:20:21 Obyvacka systemd[1]: openvfd.service: Failed with result 'exit-code'.