Re: [linux-pm] [RFC PATCH] thermal: Add support to report coolingstatistics achieved by cooling devices

From: Greg KH
Date: Mon Feb 06 2012 - 12:04:24 EST

On Mon, Feb 06, 2012 at 05:56:58PM +0100, Pavel Machek wrote:
> Hi!
> > Add a sysfs node code to report effective cooling of all cooling devices
> > attached to each trip points of a thermal zone. The cooling data reported
> > will be absolute if the higher temperature trip points are arranged first
> > otherwise the cooling stats is the cumulative effect of the earlier
> > invoked cooling handlers.
> >
> > The basic assumption is that cooling devices will bring down the temperature
> > in a symmetric manner and those statistics can be stored back and used for
> > further tuning of the system.
> /sys fs should be one-value-per-file, talk to gregkh.

That's correct.

Why not use debugfs for this instead?


greg k-h
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