Porting OpenBSD's sysctl hw.sensors framework to FreeBSD (was: Re: PERFORCE change 123040 for review)

[Constantine A. Murenin]

On 10/07/2007 14:33, Doug Ambrisko wrote:
>There are so many different flavours of HW monitoring chips
> and several tools that can read them live in ports.  Lots of them are
> slightly different, intefaces can be i2c or direct I/O.  

Please, enlighten me which of these several tools were updated in the 
last few years. Most hardware monitoring tools in the ports tree are 
outdated and no longer being maintained: xmbmon, healthd, lmmon, 
consolehm, wmhm etc. Several of these have a last-modified date of 2000, 
that's 7 years ago!

Please note that this framework is not limited to monitoring temperature 
and fan speed sensors -- it also allows one to monitor raid array status 
and a few other things.

Moreover, in OpenBSD and NetBSD these kinds of in-kernel frameworks are 
used to display ipmi(4) sensors, too.

Monitoring of remote machines with this framework is also possible -- 
with symon from ports.  Querying local machines is as easy as running 
sysctl or systat, and alerts can be generated through sensorsd.

Cheers,
Constantine.