lspci -t -v -k -b -nn -Q

OptiPlex-7010:~/firefox$ lspci -t -v -k -b -nn -Q
-[0000:00]-+-00.0  Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller [8086:0150]
           +-02.0  Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152]
           +-14.0  Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31]
           +-19.0  Intel Corporation 82579LM Gigabit Network Connection (Lewisville) [8086:1502]
           +-1a.0  Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 [8086:1e2d]
           +-1b.0  Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller [8086:1e20]
           +-1d.0  Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 [8086:1e26]
           +-1f.0  Intel Corporation Q77 Express Chipset LPC Controller [8086:1e47]
           +-1f.2  Intel Corporation 7 Series/C210 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e02]
           \-1f.3  Intel Corporation 7 Series/C216 Chipset Family SMBus Controller [8086:1e22]

*Example of loss of functionality without reasoning.

OptiPlex-7010:~/firefox$ su -l root
Password:
root@OptiPlex-7010:~#  lspci -t -v -k -b -nn -Q -H1
lspci: No permission to access I/O ports (you probably have to be root).