-On [20000927 03:10], Archie Cobbs ([EMAIL PROTECTED]) wrote:
>I'm trying to understand this iic/smbus stuff in order to write
>a driver for some new hardware. The PCI bus shows this device:
>
> 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?
>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
>Of course, you can't download the PCI 2.2 spec without being a
>"member".
Cute eh?
>Am I going down the right path trying to write a driver for
>this device?
Normally adding the vid/rid combo should at least detect it yes.
--
Jeroen Ruigrok van der Werven Network- and systemadministrator
<[EMAIL PROTECTED]> VIA Net.Works The Netherlands
BSD: Technical excellence at its best http://www.via-net-works.nl
Grant me the serenity to accept the things I cannot change, courage to
change the things I can, and wisdom to know the difference...
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