[RFT] Preliminary w83627ehf hardware monitoring driver

Jean Delvare khali at linux-fr.org
Mon Feb 28 12:00:28 CET 2005

Hi Pasi,

> > Have you tried w83627hf_wdt? I took a quick look at the W83627HF and
> > W83627THF datasheets and watchdog timer seems to work identically. Since
> > the driver doesn't seem to identify the chip (it probably should, BTW),
> > I'd expect it to work.
> Yes, I have tried it. It doesn't work.
> The machine reboots always after the watchdog timeout set in the BIOS. I've
> tried with the example watchdog daemon from the watchdog.txt, and with the
> Debian "watchdog" package.
> When I enable the debug messages and logging in the Debian watchdog
> package, I can see that the watchdog daemon gets stuck while trying to
> update the /dev/watchdog.. so the driver hangs..

I am not familiar with watchdogs. I'd invite you to get in touch with
the author and/or maintainer of the w83627hf_wdt driver, or possibly try
to debug it yourself. Datasheets are freely available from Winbond for
both the W83627HF and W83627THF:

I do not own a system with either chip myself, so I can hardly help. (If
anyone wants to donate a system with either chip so that I can work on
this, just contact me.)

Jean Delvare

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