XPost: alt.os.linux.mageia, comp.sys.raspberry-pi   
   From: nospam@needed.invalid   
      
   On 9/18/2022 9:24 AM, Marco Moock wrote:   
   > Am Sonntag, 18. September 2022, um 23:09:24 Uhr schrieb Daniel65:   
   >   
   >> Is Hddtemp just a spinning drive-type tool or is it applicable for   
   >> Solid State Drives as well??   
   >   
   > Why should that matter?   
   > There is a temperature sensor that need to be read out, regardless of   
   > the technology the disk uses.   
   > But according to the other post hddtemp is very old, so it is from a   
   > time where SSD weren't common.   
   >   
      
   For reasons that escape pretty well everyone, the SMART table on   
   legacy HDD and on the new SSD, don't match. You would think there   
   would be value, having entries with the same name, at their   
   traditional address. I would guess that is too easy.   
      
   Some environment information is pinned out in ACPI tables, such as   
   CoreTemp from your CPU. One of the improvements in reading the   
   hardware monitor interface on the SuperIO, was for the BIOS to   
   wrap some of the information, making it easier for userland applications   
   to "consume" the information. For example, the scaling resistors on   
   the voltage measurement section, if you use the ACPI table, the   
   voltages are already scaled for you. And that saves an unbelievable   
   amount of labor. In the past, humans used to submit empirically   
   derived scale resistor info, to the maintainer of MBM5, per motherboard   
   design. And that sucked as a method. Having the correct values   
   computed by the BIOS designer, and passed via ACPI table, made   
   so much more sense.   
      
   But not everything in life is that easy. Thus, we're still fiddling   
   with SMART tables in the year 2022.   
      
   I assume NVMe temperature is the same as SATA SSD, but that would   
   be a rash assumption unless verified. Even an eMMC chip, could have   
   its temperature information, delivered in some other way. And USB   
   flash sticks, I've never seen a measured value printed on a screen,   
   for those.   
      
       Paul   
      
   --- SoupGate-Win32 v1.05   
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