/dev/watchdog missing

[jens-maus]

For proper hardware watchdog operations the kernel module that actually initialized /dev/watchdog needs to be automatically loaded upon system startup. This can be performed via:

modprobe bcm2708_wdog nowayout=1 heartbeat=15

However, we should first check if we can automatically load that module via mdev/udev rather than adding this mod probe line to a simply startup script. Furthermore, the /etc/init.d/S15watchdog startup script needs to be in place to actually start the watchdog daemon correctly.