/proc/pci was deprecated - you can enable it with a recompile of your kernel, but my guess is Suse defaults it to 'non-configured'
From the help files when you recompile a kernel :
Code:
CONFIG_PCI_LEGACY_PROC: │
│ │
│ This feature enables a procfs file -- /proc/pci -- that provides a │
│ summary of PCI devices in the system. │
│ │
│ This feature has been deprecated as of v2.5.53, in favor of using the │
│ tool lspci(8). This feature may be removed at a future date. │
│ │
│ lspci can provide the same data, as well as much more. lspci is a part of │
│ the pci-utils package, which should be installed by your distribution. │
│ See <file: Documentation/Changes> for information on where to get the latest │
│ version. │
│
Regards
rg