Re: CONFIG_THERMAL_HWMON in thermal_sys.c

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On Tue, 11 Sep 2012 09:24:27 +0000, R, Durgadoss wrote:
> I have not tried anything with libsensors until now..so it will take
> some time for me. If you can wait, I can happily submit the required
> patches :-)
> 
> But, we are changing the thermal framework quite a bit these days.
> In some time, things should become saner. Until then, we will not
> remove this #define and keep it as it is. Once that happens, we can
> take care of removing this #defined code and also patching
> libsensors.
> 
> We can do this now also. I know, we are changing things on
> the thermal side (sysfs attribute names etc..).  If we patch 
> libsensors now, then we might have to re-visit again, soon.
> That's why, I would like to defer this until things settle down on the
> Thermal side.
> 
> Let me know what you think.

I agree, let's wait for the interface to stabilize, there's no point in
updating libsensors publicly now if the interface is going to change in
a near future.

That being said you may also want to anticipate a bit in private, to
make sure that the interface as it exists today is enough for
libsensors.

> > Note: if the same device can now be registered as both hwmon and
> > thermal, we will have to find a way to detect that to avoid duplicate
> > entries in libsensors.
>  
> The hwmon sysfs has a 'name' field. We can pass the same string as the
> first argument of the thermal_zone_device_register() call. This will
> show up as 'type' attribute under /sys/class/thermal/thermal_zoneX.
> So, from user space, we can compare these interfaces and thus avoid
> the duplicates.

This is a start, yes. However the name isn't necessarily unique, so
more tricks may be needed.

-- 
Jean Delvare

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