What is Simple Watchdog Daemon ?

Simple Watchdog daemon is an hardware watchdog that run as a daemon. It does not have all the features the other watchdogs have, however it is really light and easy to use and it keep your system alive as a watchdog is suppose to do. So if you need an hardware watchdog but do not want to deal with complicated software, you might be in the right place.

Distribution

Simple Watchdog Daemon is designed to work with any linux that have an harware watchdog driver loaded.

It have been test on :

• Ubuntu 16.06 and 18.04
• STM32MP157 with OpenSTLinux

How to compile it ?

To compile it, just invoke make. You can specify your compiler if you want with CROSS_PREFIX

Example (with cross compilation) :

make all CROSS_PREFIX=arm-linux-gnuaebihf-gcc

How to install it ?

In order to install Simple Watchdog Daemon, just copy the watchdogd elf somewhere in your path (or somewhere else, it's up to you).

How to use it ?

In order to start Simple Watchdog Daemon during the boot you can use on of the init_script or service provide in the init_script folder. You can also launch it by calling the binary

watchdogd <args>

Arguments :

• -d Enable disarmement : the deamon will disarm the watchdog when closing
• -D<driverFile> : the watchdog will use the specified driver file
• -t<timeOut> : the watchdog will use the specified timeOut in seconds
• -p<pidFile> : the watchdog will use the specified pidFile to write its PID

Contact

If you have any questions feel free to mail me : [email protected]

I hope this software will help you ! Have a nice day !