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From: Julian Elischer <julian@elischer.org>
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To: John Baldwin <jhb@freebsd.org>
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Cc: arch@freebsd.org, "Constantine A. Murenin" <cnst@freebsd.org>
Subject: Re: sensors fun..
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John Baldwin wrote:
>
> Other things that might be nice:
> 
> - IWBN to have a userland interface to sensors.  For example, if nothing else 
> a sensor enumerator rather than duplicating the sysctl loop as the current 
> code does.  This would make it easier to at least adjust the current 
> artificial limit on the number of sensors since only one place in userland 
> would have to change.  (BTW, having an artificial limit on the number of 
> sensors is lame.  This is an example where using the normal way of walking a 
> sysctl tree is superior.  You can lose the entire limit.)  Having a userland 
> interface also makes it easier to have backends that are entirely in 
> userland.
>
maybe a loopback filesystem

/var/run/sensors could be a loopback filesystem that exports a view of the 
sensors available. The process doing the work would be a userland process but
it would be providing the information in the form of a filesystem so 
other processes could access it easily.
>