Question about sysctl-ing coretemp module values

[Harald Servat]

2011/1/15 Oliver Pinter <oliver.pntr at gmail.com>

>
> http://oliverp.teteny.bme.hu/git/?p=base/AiBoost-sensord.git;a=blob;f=aiboost-sensord.c;h=349b612066eb0514a2d5c3035908e7418ca71500;hb=HEAD
>
> On 1/15/11, Harald Servat <redcrash at gmail.com> wrote:
> > Hello,
> >
> >   First of all, forgive if this is not the appropiate list to ask this.
> > Could you point me the correct list if so?
> >
> >   I'm writing a small program to capture the temperature reported by the
> > coretemp kernel module. I'm doing this by using the sysctl API. However,
> I'm
> > facing a problem when reading that value (dev.cpu.0.temperature, for
> > example).
> >
> >   man 3 sysctl has an example (labeled as "To retrieve the standard
> search
> > path for the system utilities:") which seems great to me to know the
> length
> > of the OID it wants to read before running the "real" sysctl. I wrote a
> > similar example (attached) based on that, but it does not work
> appropiately.
> > The 1st call tells me that len = 4 (whereas the value for
> > dev.cpu.0.temperature is "37.0C" which should be 5 if \0 is not counted).
> >
> >   Can anyone shed some light on what I'm doing wrong?
> >
> > Thank you very much!
> > --
>

Matthew, Oliver,

  thank you very much! When I use an int variable instead of a char[4] it
works fine. As you stated, the module returns a value in 10ths of K. Now,
I've been able to fix the issue.

Regards.
-- 
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