Users Guide

1.         fwupd.
#sudo fwupdmgr get-devices
2.   firmware.cab   .
#sudo fwupdmgr [Installation path of firmware.cab] -v
3.     .
#sudo reboot
 Watchdog Timer (WDT(
  WDT 

    .
    WDT :
●msdn.microsoft.com/en-us/windows/hardware/gg463320
●lwn.net/Articles/701235/
 Watchdog Timer (WDT(
  WDT 

    .
1.  WDT .
#cat /etc/watchdog.conf
:   watchdog-timeout=             /)dev/watchdog   



 
WatchdogDevice=  systemd.watchdog-device=  kernel (   

          .
2.  WDT .
#cat /etc/default/watchdog
     sysfs
 18 .  WDT
   
/sys/class/watchdog/watchdog0/bootstatus
      WDT   . 
WDIOC_GETBOOTSTATUS     / )ioctl.(
/sys/class/watchdog/watchdog0/identity
       WDT.
/sys/class/watchdog/watchdog0/nowayout
    nowayout      1  0.
/sys/class/watchdog/watchdog0/state
  /     WDT.
/sys/class/watchdog/watchdog0/status
       WDT . 
WDIOC_GETSTATUS  ioctl.
/sys/class/watchdog/watchdog0/timeleft
         . 
WDIOC_GETTIMELEFT  ioctl.
/sys/class/watchdog/watchdog0/timeout
     timeout.
66  