RE: sysctl question

[Paul Goyette <paul%whooppee.com@localhost>]

On Sat, 21 Jun 2008, Tim Rightnour wrote:

> On 19-Jun-2008 Paul Goyette wrote:
> > sysmon_envsys(9) doesn't seem to provide a mechanism for the limits to
> > be set from userland, so I need some other way to get values into the
> > registers.  I've thought of three ways to do this:
>
> I'm confused by this.  I thought the limits could be set via the standard
> ENVSYS_SETDICTIONARY ioctl.  Specifically, it looks like there is support for
> USERPROP_CRITMAX and USERPROP_CRITMIN according to
> sys/dev/sysmon/sysmon_envsys.c

True.  But the sensor in question has THREE boundary points, and it sets 
alarms bits in its status register based on the contents of these three 
boundaries:

        Alarm Window Lower
        Alarm Window Upper
        Critical

There are four possible conditions and what they correspond to

        Below Alarm Window     WARNUNDER
        Within Alarm Window    NORMAL
        Above Alarm Window     WARNOVER
        Above Critical         CRITOVER

And there is no provision in proplib currently to set the boundaries for 
the Warning Levels.

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