From /usr/share/misc/pci.ids on my (Debian) Linux box: 
# Vendors, devices and subsystems. Please keep sorted.

# Syntax:
# vendor  vendor_name
#       device  device_name                             <-- single tab
#               subvendor subdevice  subsystem_name     <-- two tabs

[download]
And some sample data: 
# Formerly NCR
1000  LSI Logic / Symbios Logic
        0001  53c810
                1000 1000  LSI53C810AE PCI to SCSI I/O Processor
        0002  53c820
        0003  53c825
                1000 1000  LSI53C825AE PCI to SCSI I/O Processor (Ultr
+a Wide)
        0004  53c815
        0005  53c810AP
        0006  53c860
                1000 1000  LSI53C860E PCI to Ultra SCSI I/O Processor
        000a  53c1510
                1000 1000  LSI53C1510 PCI to Dual Channel Wide Ultra2 
+SCSI Controller (Nonintelligent mode)
        000b  53C896/897
                1000 1000  LSI53C896/7 PCI to Dual Channel Ultra2 SCSI
+ Multifunction Controller
                1000 1010  LSI22910 PCI to Dual Channel Ultra2 SCSI ho
+st adapter
                1000 1020  LSI21002 PCI to Dual Channel Ultra2 SCSI ho
+st adapter
# multifunction PCI card: Dual U2W SCSI, dual 10/100TX, graphics
                13e9 1000  6221L-4U
        000c  53c895
                1000 1010  LSI8951U PCI to Ultra2 SCSI host adapter
                1000 1020  LSI8952U PCI to Ultra2 SCSI host adapter
                1de1 3906  DC-390U2B SCSI adapter
                1de1 3907  DC-390U2W
        000d  53c885
        000f  53c875
                0e11 7004  Embedded Ultra Wide SCSI Controller
                1000 1000  LSI53C876/E PCI to Dual Channel SCSI Contro
+ller
                1000 1010  LSI22801 PCI to Dual Channel Ultra SCSI hos
+t adapter
                1000 1020  LSI22802 PCI to Dual Channel Ultra SCSI hos
+t adapter
                1092 8760  FirePort 40 Dual SCSI Controller
                1de1 3904  DC390F/U Ultra Wide SCSI Adapter
                4c53 1000  CC7/CR7/CP7/VC7/VP7/VR7 mainboard
                4c53 1050  CT7 mainboard

[download]

I started to have a play around with this earlier this morning, but I'm afraid that I'm a bit busy at work now. If I get time to have another go at it later I'll update.

In reply to Re^2: pci.ids to a complex data structure by McDarren
in thread pci.ids to a complex data structure by wynnmc

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