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Date:      Thu, 08 Mar 2001 13:07:05 +0100
From:      Bert Driehuis <bert_driehuis@nl.compuware.com>
To:        kstewart@urx.com
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Temp and fan program
Message-ID:  <3AA775E9.B4E36BDC@nl.compuware.com>
References:  <p05001910b6cb8f3b5c3d@[192.168.168.205]> <200103072005.OAA46328@sullivan.realtime.net> <20010307151115.B79099@peitho.fxp.org> <20010308.054528.59722369.ume@mahoroba.org> <15014.49484.258132.704698@guru.mired.org> <3AA74231.B31E95DC@urx.com>

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Kent Stewart wrote:

> I have two boards using the new Via HW monitoring sensor's and I'm not
> sure they even get the voltages right when I use healthd and lmmon.
> The temp is typically something like 255 and fan(s) rpm is 0.

This is indicative of not being able to read the LM78/W83781D chip (all
readings are 0xff).

As far as I can tell, the LM78 does not have an ISA I/O address, so
lmmon -i is reading from an unassigned port 295/296. The W83781D does
have an ISA I/O address, but unfortunately, not all motherboards have
this chip or have it fully wired up.

I've been toying with the smbus stuff, but my kernel hangs at "Mounting
root" if I add this to the kernel:

	device	ichsmb
	device	smbus
	device	smb

It detects the Intel ICH (at irq 0), but after that it's end of story...
This is on 4.2-RELEASE, but I didn't see any updates relevant I thought
were relevant in 4.2-STABLE.

ichsmb0: <Intel 82801AA (ICH) SMBus controller> port 0x540-0x54f irq 0
at device 31.3 on pci0
smbus0: <System Management Bus> on ichsmb0
smb0: <SMBus general purpose I/O> on smbus0
The motherboard is an Intel CA810E.

Cheers,

				-- Bert

-- 
Bert Driehuis, MIS -- bert_driehuis@nl.compuware.com -- +31-20-3116119
Dihydrogen Monoxide kills! Join the campaign at http://www.dhmo.org/

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