Messages in this thread | | | Date | Tue, 06 May 2014 08:53:04 -0700 | From | Srinivas Pandruvada <> | Subject | Re: [lm-sensors] coretemp.0 folder contents changed |
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On 05/06/2014 08:20 AM, Srinivas Pandruvada wrote: > On 05/06/2014 04:55 AM, Jean Delvare wrote: >> Hi Guenter, Srinivas, >> >> On Mon, 5 May 2014 10:32:31 -0700, Guenter Roeck wrote: >>> On Mon, May 05, 2014 at 10:13:11AM -0700, Srinivas Pandruvada wrote: >>>> for kernel : 3.15.rc3 . >>>> >>>> Is there any change in the coretemp? Previously we used to see, >>>> tempx data (like temp2_input, temp2_max etc.) >>>> /sys/devices/platform/coretemp.0/. >>> That isn't where you are supposed to look for hwmon attributes. >> Actually I used to recommend looking there when people were not using >> libsensors (e.g. for pwmconfig / fancontrol or custom scripts.) This >> path had the great merit of being stable across reboots, while hwmon >> class device numbers are not (or at least they aren't guaranteed to be.) > I maintain thermal daemon, which was using the path. So once Ubuntu > upgrade kernel, > this will break. So I have to make sure that corresponding user space > change is submitted. > I don't want to depend on too many libraries as it also runs on many > embedded platforms > where many library pre-builts don't exists. >>> (...) >>> To give you the background, hwmon attributes are in the process of >>> being moved from the parent device to the hwmon device, or from >>> /sys/class/hwmon/hwmonX/device/ to /sys/class/hwmon/hwmonX/, >>> as part of an effort to streamline the code and make it more >>> consistent and maintainable. >> I am just realizing that we are also losing the stability of hardware >> device based paths with that move :( I suppose I shouldn't have >> bothered adding support for this to fancontrol. >> >> Don't get me wrong, I still believe this is the right move, but I fear >> that the question of persistent hwmon device names will resurface every >> now and then again. libsensors offers a solution but 1* it lacks >> support for pwm attributes and 2* it doesn't help with shell or perl >> scripts such as pwmconfig and fancontrol. > Also when using Android like platform with limited library support, > we have to make sure that libsensor exists. > > Also some documents which can be downloaded from intel.com, refers to this path. http://www.intel.com/content/www/us/en/intelligent-systems/cpu-monitoring-dts-peci-paper.html So we need to request document owners to update path. But it is possible that OEM/ODMs also has similar documents or refer to such documentation.
> Thanks, > Srinivas > > > _______________________________________________ > lm-sensors mailing list > lm-sensors@lm-sensors.org > http://lists.lm-sensors.org/mailman/listinfo/lm-sensors >
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