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Date:      Wed, 28 Jul 1999 12:01:36 -0400 (EDT)
From:      David Gilbert <dgilbert@velocet.ca>
To:        Nicolas Souchu <nsouch@teaser.fr>
Cc:        dgilbert@velocet.ca, freebsd-hardware@FreeBSD.ORG
Subject:   Re: smbus not quite right?
Message-ID:  <14239.10592.948209.726743@trooper.velocet.ca>
In-Reply-To: <19990724180824.18086@breizh.teaser.fr>
References:  <199907190324.XAA08403@strike.velocet.ca> <19990724180824.18086@breizh.teaser.fr>

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>>>>> "Nicolas" == Nicolas Souchu <nsouch@teaser.fr> writes:

Nicolas> On Sun, Jul 18, 1999 at 11:24:05PM -0400, dgilbert@velocet.ca
Nicolas> wrote:
>>  I have a machine with a P5A motherboard, which probes as follows:
>> 
>> pcf0: <PCF8584 I2C bus controller> iicbus0: <Philips I2C bus> on
>> pcf0 addr 0xaa iicsmb0: <I2C to SMB bridge> on iicbus0 smbus0:
>> <System Management Bus> on iicsmb0 smb0: <SMBus general purpose
>> I/O> on smbus0 iic0: <I2C general purpose I/O> on iicbus0
>> 
>> Now... If I run mbmon in ISA mode, which opens /dev/io, it works.
>> If I run it in in smbus mode, which opens /dev/smb0, it fails.
>> Having read the documentation on /dev/io, I'd rather not have that
>> ability on a server... I would guess that it requires an insecure
>> level.

Nicolas> Whats mbmon? You have actually a Philips PCF8584 connected to
Nicolas> your ISA bus?

mbmon is a little application (inside a xmbmon tarball) that probes
this chipset for information.  I don't actually know any details about 
my chipset per se, but it would appear that I do have a pcf8584...

Dave.

-- 
============================================================================
|David Gilbert, Velocet Communications.       | Two things can only be     |
|Mail:       dgilbert@velocet.net             |  equal if and only if they |
|http://www.velocet.net/~dgilbert             |   are precisely opposite.  |
=========================================================GLO================


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