From owner-freebsd-current  Wed Sep 27 21:22:36 2000
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From: Archie Cobbs <archie@whistle.com>
Message-Id: <200009280422.VAA30166@bubba.whistle.com>
Subject: Re: smbus PCI device?
In-Reply-To: <20000927154523.P10657@lucifer.bart.nl> "from Jeroen Ruigrok van
 der Werven at Sep 27, 2000 03:45:23 pm"
To: Jeroen Ruigrok van der Werven <jruigrok@via-net-works.nl>
Date: Wed, 27 Sep 2000 21:22:19 -0700 (PDT)
Cc: freebsd-current@FreeBSD.ORG
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Jeroen Ruigrok van der Werven writes:
> >    found-> vendor=0x8086, dev=0x2413, revid=0x02
> >	    class=0c-05-00, hdrtype=0x00, mfdev=0
> >                  ^^^^^^^^
> >	    subordinatebus=0        secondarybus=0
> >	    intpin=b, irq=10
> >	    map[20]: type 1, range 32, base 0000fe00, size  4
> 
> pciconf -l will probably show the class as 0x0c0500 I guess?

Yes.

> >The class/sub-class/programming interface (highlighted above)
> >indicates a SMBus device as specified by PCI 2.2.
> >
> >However, I'm not sure what that is. Adding the "smbus" device and
> >friends to the kernel config doesn't cause this device to be
> >detected.  You'd think all I needed to do then would be to add the
> >device ID to a list in the smbus driver somewhere, but I can't find
> >that list. Does "smbus_pci.c" not exist yet?
> 
> Normally, that would be enough yes.  I think you want:
> 
> src/sys/dev/iicbus and src/sys/dev/smbus

Those are in, but there is no driver that recognizes the
device and vendor ID above.  Guess I'll have to write one
as soon as I can get the PCI 2.2 spec.

Thanks,
-Archie

___________________________________________________________________________
Archie Cobbs   *   Whistle Communications, Inc.  *   http://www.whistle.com


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