Monitoring whether DVB-T cards are loaded OK

[djwhyte]

I am running zabbix server and agent on Ubuntu machines (i.e. 1.4.1 of Zabbix) and would like have an item that monitors whether a DVB-T card is loaded OK.

The simple check I want to make is see if the directory /dev/dvb/adapter0 is present, which would only be the case if everything is fine. I tried using the vfx.file.exists key for that but it didn't work. I then tried using the same key for /dev/dvb/adapter0/frontend0, but that also doesn't work as it is a device.

Can anybody suggest a good way to monitor actual devices using Zabbix?

Regards,
Whytey

[cstackpole]

I don't have one of those cards so this is just speculation...

But would it be possible to scrape the /var/log/messages or dmesg for entries? How about kernel modules? Does it load/unload modules that can be found with lsmod?

Have Fun!