R-Car/Boards/Yocto-Gen3-CommonFAQ/How to use Watchdog timer.

How to use Watchdog timer.
Start/Reset timer: ex) using echo:

End timer: ex) using echo:

After the timeouts(default: 60 seconds), device reboots.

How to change timeout-sec
Example(Yocto v3.21.0)

See also:
 * https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html