Re: Advantech Watchdog timer query

[Ryan Clayburn <ryan.clayburn@dsto.defence.gov.au>]

>Hi Everyone,

>I work for a government agency so please forgive me for not having the
>latest version of the kernel. My question concerns an Advantech card
>PCI 6870 Single Board Computer and its watchdog timer. I am running
>Redhat 9 linux 2.4.20-8 and it comes with module that supports the
>hardware advantechwdt.o. I have been able install and communicate with
>the card.Get and set the timeout or margin and get the support
>information of the card. Everything seems to work except when i
>deliberately delay the ping to the card to let it reboot the system as
>a watchdog should it does not reboot. Is there something i am missing.
>Do i need a update to the driver? I am attaching the code. It is fairly
>simple and a lot of it is just reading and writing information read
>from the driver about the card. I would appreciate any help.

>>Be careful that you're using the correct driver.
>>Certain newer advantech systems use the w83627hf
>>chip, which is not supported in 2.4 by default.
>>Backporting the driver from 2.6 should be trivial.

>>Pádraig.

I have backported the driver as suggested from 2.6 to 2.4 but that
didn't help. I then got a fedora core 3 installation on a separate hard
drive with kernel 2.6.9-1.667. the one thing that i found that is
peculiar and looks like a bug is that the /usr/include/watchdog.h is not
the same as the watchdog.h in the src directory. In any case even after
copying the the header file across i was unable to get the watchdog to
reset the OS. Is there something i am not doing?

Cheers

Ryan


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