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Re: Processor Temp

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
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References: 
 >Processor Temp (From: "Robert J. Accettura" <email@hidden>)



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