Re: temperature standard - global config option?

[Chris Boot]

Hi,

>>> Kelvins good idea in general - it is always positive ;-)
>>> 
>>> 0.01*K fits in 16 bits and gives reasonable range.
>>> 
>>> but may be something like K<<6 could be a option? (to allow use of shifts
>>> instead of muls/divs). It would be much more easier to extract int part.
>>> 
>>> just my 2 eurocents.
>> 
>> Why not make it in Celsius ? Is more easy to read it this way.
> 
> It's easier for you as a user to read, but slightly harder to deal with inside
> the code.  
> It's really a user-space issue, inside the kernel should be as standardized as
> possible, and
> Kelvins make the most sense there.

OK, I think by now we've all agreed the following:
 - The issue is NOT displaying temperatures to the user, but a userspace
   program reading them from the kernel.  The userspace program itself can
   do temperature conversions for the user if he/she wants.
 - The most preferable units would be decikelvins, as the value can give a
   relatively precise as well as wide range of numbers ranging from absolute
   zero to about 6340 degrees Celsius ((65535 / 10) - 273) which is well
   within anything that a computer can operate.  It also gives us a good
   base for all sorts of other temperature sensing devices.

Do we all agree on those now?

-- 
Chris Boot
[e-mail]

#define QUESTION ((2b) || (!2b))