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Re: Processor Temp

Well, I found some info here:
http://e-www.motorola.com/files/32bit/doc/app_note/AN1800.pdf

But I'm missing something :-( I guess. Most likely licensing is in the
way. Perhaps someone knows better.

Also found this:
http://mail-index.netbsd.org/port-powerpc/2002/03/03/0000.html

But nothing more to it.

I'm sure it's possible. Under Mac OS 9, many software products did it,
so there is a way to interface to the hardware and retrieve the info.
The question is how under OS X?

More interesting is it apparantly has a PPC 750:
http://www.bresink.de/osx/TemperatureMonitor.html
Seems supported.

Shawn Erickson wrote:

>
>
> On Jan 15, 2004, at 8:11 PM, Robert J. Accettura wrote:
>
> Is there a way to get the processor temp via terminal in OS X?
>
> I'd like to script some method to record the processor temp of my old
> beige G3.
>
>
> Note the following email... it may give a avenue but as other have
> stated no defined interface exists.
>
> Begin forwarded message:
>
> *From: *Shawn Erickson <email@hidden>
> *Date: *January 8, 2004 8:06:34 AM PST
> *To: *Kory T <email@hidden>
> *Cc: *email@hidden
> *Subject: Re: Sensor readings
> *
> On Jan 7, 2004, at 11:25 PM, Kory T wrote:
>
> Hi,
>
> I've been trying to figure out where the readings for the G5
> temp sensors can be located (also for Xserves). I'm assuming
> OS X has this info in a way where I can just 'cat' it (since
> everything on nix is treated as a file). Or is there a
> framework that I'm not aware of that allows me to access this
> info (still new to programming on OS X ;)? Can someone point
> me to the right direction?
>
>
> I hopefully can get on the path at least... (don't know that
> answer myself at the moment)
>
> Try running the following command: "ioreg -b -n IOHWSensor"
>
> You will see entries like the following...
>
> | | | | +-o temp-sensor <class IOService, registered, matched,
> active, busy 0, retain count 6>
> | | | | +-o IOHWSensor <class IOHWSensor, registered, matched,
> active, busy 0, retain count 6>
> | | | | {
> | | | | "current-value" = 1847296
> | | | | "polling-period" = 18446744073709551615
> | | | | "location" = "DRIVE BAY"
> | | | | "type" = "temperature"
> | | | | "IOClass" = "IOHWSensor"
> | | | | "IONameMatched" = "temp-sensor"
> | | | | "version" = 1
> | | | | "zone" = <00000001>
> | | | | "IOProbeScore" = 0
> | | | | "IOMatchCategory" = "IODefaultMatchCategory"
> | | | | "IONameMatch" =
> ("temp-sensor","voltage-sensor","current-sensor","power-sensor","adc-sensor","fanspeed-sensor")
>
> | | | | "CFBundleIdentifier" = "com.apple.driver.AppleHWSensor"
> | | | | "IOProviderClass" = "IOService"
> | | | | "sensor-id" = 4
> | | | | }
>
> Using IOKit methods you can scan the IO registry programatically
> to find the above information (see IOKit / Kernel document on
> Apples developer site). You can also get a hold of the driver
> instances (instances of IOHWSensor) which may or may not provide a
> user client that will allow you directly communication with
> whatever API it exposes. I don't know the units or encoding for
> current-value...
>
> Also sysclt may exist for the above information... (I don't know
> myself)
>
> -Shawn
>
>
>

--
Robert J. Accettura
email@hidden

[demime 0.98b removed an attachment of type application/x-pkcs7-signature which had a name of smime.p7s]
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References: 
 >Processor Temp (From: "Robert J. Accettura" <email@hidden>)
 >Re: Processor Temp (From: Shawn Erickson <email@hidden>)



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