Re: [lm-sensors] [PATCH] libsensors: Add support for humidity

[Guenter Roeck <guenter.roeck@ericsson.com>]

On Thu, Feb 10, 2011 at 07:08:10AM -0500, Guenter Roeck wrote:
> On Thu, Feb 10, 2011 at 03:20:20AM -0500, Jean Delvare wrote:
> > Hi Guenter,
> > 
> > On Wed, 9 Feb 2011 21:42:56 -0800, Guenter Roeck wrote:
> > > This patch adds support for humidity sensors to libsensors.
> > 
> > Maybe it's a little late to discuss this now that humidity[1-*]_input
> > is already described in Documentation/hwmon/sysfs-interface, but... do
> > humidity sensors really belong to the hardware monitoring framework?
> > What are the use cases of these sensors in practice?
> > 
> > We let the accelerometer drivers slip in in the past (thankfully
> > without documenting their attributes), and now we have a hard time
> > getting them moved to the right place. I wouldn't want to do the same
> > mistake with humidity sensors. My feeling is that they don't belong to
> > hwmon.
> > 
> The argument is that humidity is an environmental parameter which does
> affect system operation, and thus it does belong to the hwmon framework.
> I don't know what the existing/supported sensors are used for, but could
> well imagine one in an industrial computer used to ensure that the system
> isn't running in too much humidity.
> 
Copying Jonathan for additional comments.

I did some search on the web, and noticed that many environmental monitoring
systems for server environments include humidity sensors, and it is often listed
at the same level of importance as temperature sensors.

Guenter

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