Couldn't open the watchdog : device or ressource busy

[josep.tx]

Hello @Muzzy
I just found this thread, it might be useful

Watchdog device always busy

Hello! I’m working with a imx8m-plus board with Torizon 5.5 I need to write an application that will use the /dev/watchdog device But the application always fails to open the device, it says that the resource is busy. I’m trying to open it like this: api_watchdog_fd = open(“/dev/watchdog”, O_RDWR); This is the output from fuser: sudo fuser -v /dev/watchdog ** USER PID ACCESS COMMAND** /dev/watchdog: root 1 F… systemd It looks like systemd is usi…

Best regards,
Josep