lspci doesn't seem to be able to find the pci.ids database from hwdata.
$ rpm -q pciutils hwdata
pcilib: Cannot open /sys/bus/pci/devices
0000:00:00.0 Class 0600: 1039:0651 (rev 01)
0000:00:01.0 Class 0604: 1039:0001
$ lspci -i /usr/share/hwdata/pci.ids
0000:00:00.0 Host bridge: Silicon Integrated Systems [SiS] SiS651 Host
0000:00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS 530
Virtual PCI-to-PCI bridge (AGP)
The problem with wrong path to pci.ids got fixed in pciutils-2.1.11-4
Are you running kernel 2.6? You need to mount /sys first but it looks
like it's falling back to using /proc.
*** This bug has been marked as a duplicate of 111665 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.