# /sbin/lspci
00:00.0 Host bridge: ServerWorks: Unknown device 0014 (rev 33)
00:00.1 Host bridge: ServerWorks: Unknown device 0014
00:00.2 Host bridge: ServerWorks: Unknown device 0014
00:01.0 VGA compatible controller: ATI Technologies Inc RadeonVE QY
00:0f.0 ISA bridge: ServerWorks: Unknown device 0203 (rev a0)
00:0f.1 IDE interface: ServerWorks: Unknown device 0213 (rev a0)
00:0f.2 USB Controller: ServerWorks: Unknown device 0221 (rev 05)
00:0f.3 Host bridge: ServerWorks: Unknown device 0227
00:10.0 Host bridge: ServerWorks: Unknown device 0101 (rev 05)
00:10.2 Host bridge: ServerWorks: Unknown device 0101 (rev 05)
01:01.0 Ethernet controller: Intel Corporation 8254NXX Gigabit Ethernet Controller (rev 04)
01:02.0 Ethernet controller: Intel Corporation 8254NXX Gigabit Ethernet Controller (rev 04)
02:01.0 Ethernet controller: Intel Corporation 8254NXX Gigabit Ethernet Controller (rev 03)
02:01.1 Ethernet controller: Intel Corporation 8254NXX Gigabit Ethernet Controller (rev 03)
02:03.0 Fiber Channel: QLogicCorp QLA231x/2340 (rev 02)
02:03.1 Fiber Channel: QLogicCorp QLA231x/2340 (rev 02)
Also in tmp/lspci1.*.txt
First field is Bus:Slot:Function
Lines with same Bus/Slot, but different Function are dual/quad port cards.