Date: Sat, 15 Jan 2011 22:22:18 +0100 From: Oliver Pinter <oliver.pntr@gmail.com> To: Harald Servat <redcrash@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Question about sysctl-ing coretemp module values Message-ID: <AANLkTi=yXqGm%2BkgKuap-nFOmaNdL0_J5qeW3ww5wPjH%2B@mail.gmail.com> In-Reply-To: <AANLkTi=eTpy%2BTkbXJy_sCgtPHAV8qd%2BgB=FabWc=d6vu@mail.gmail.com> References: <AANLkTi=eTpy%2BTkbXJy_sCgtPHAV8qd%2BgB=FabWc=d6vu@mail.gmail.com>
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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@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! > -- > _________________________________________________________________ > Fry: You can see how I lived before I met you. > Bender: You lived before you met me?! > Fry: Yeah, lots of people did. > Bender: Really?! >
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