1. find out pci handle of your SMB controller:
# pciconf -lv | fgrep 0x0c0500 -A 4
[EMAIL PROTECTED]:1:1: class=0x0c0500 card=0x5348108e chip=0x005210de rev=0xa2
hdr=0x00
vendor = 'NVIDIA Corporation'
device = 'nForce4 SMBus'
class = serial bus
subclass = SMBus
2. read values in BARs 4 and 5 and also registers 0x50 and 0x54 like
follows:
# pciconf -r pci0:1:1 0x20
00001c01
# pciconf -r pci0:1:1 0x24
00001c41
# pciconf -r pci0:1:1 0x50
00001c01
# pciconf -r pci0:1:1 0x54
00001c41
FreeBSD 6.2-BETA2 FreeBSD 6.2-BETA2 #0: Mon Oct 2 03:22:01 UTC 2006
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386
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