$ lspci -t
-+-[0000:e0]-+-00.0
| +-00.2
| +-01.0
| +-02.0
| +-03.0
| +-03.2-[e1-e2]--+-00.0
| | \-00.1
| +-04.0
| +-05.0
| +-07.0
| +-07.1-[e3]--+-00.0
| | \-00.2
| +-08.0
| \-08.1-[e4]--+-00.0
| \-00.2
+-[0000:c0]-+-00.0
| +-00.2
| +-01.0
| +-01.1-[c1]----00.0
| +-02.0
| +-03.0
| +-04.0
| +-05.0
| +-07.0
| +-07.1-[c2]--+-00.0
| | \-00.2
| +-08.0
| +-08.1-[c3]--+-00.0
| | \-00.2
| \-08.2-[c4]----00.0
+-[0000:a0]-+-00.0
| +-00.2
| +-01.0
| +-02.0
| +-03.0
| +-03.1-[a1]--
| +-03.2-[a2]--
| +-03.3-[a3]--
| +-03.4-[a4]--
| +-04.0
| +-05.0
| +-07.0
| +-07.1-[a5]--+-00.0
| | \-00.2
| +-08.0
| \-08.1-[a6]--+-00.0
| +-00.1
| \-00.2
+-[0000:80]-+-00.0
| +-00.2
| +-01.0
| +-01.1-[81-87]----00.0-[82-87]--+-04.0-[83]----00.0
| | +-08.0-[84]----00.0
| | +-0c.0-[85]--+-00.0
| | | \-00.1
| | +-10.0-[86]--+-00.0
| | | \-00.1
| | \-14.0-[87]----00.0
| +-02.0
| +-03.0
| +-04.0
| +-05.0
| +-07.0
| +-07.1-[88]--+-00.0
| | \-00.2
| +-08.0
| \-08.1-[89]--+-00.0
| \-00.2
+-[0000:60]-+-00.0
| +-00.2
| +-01.0
| +-02.0
| +-03.0
| +-03.2-[61]----00.0
| +-03.5-[62-63]--+-00.0
| | \-00.1
| +-03.6-[64-65]----00.0-[65]----00.0
| +-04.0
| +-05.0
| +-07.0
| +-07.1-[66]--+-00.0
| | \-00.2
| +-08.0
| \-08.1-[67]--+-00.0
| \-00.2
+-[0000:40]-+-00.0
| +-00.2
| +-01.0
| +-01.1-[41-47]----00.0-[42-47]--+-04.0-[43]----00.0
| | +-08.0-[44]----00.0
| | +-0c.0-[45]----00.0
| | +-10.0-[46]--+-00.0
| | | \-00.1
| | \-14.0-[47]--
| +-02.0
| +-03.0
| +-04.0
| +-05.0
| +-07.0
| +-07.1-[48]--+-00.0
| | \-00.2
| +-08.0
| +-08.1-[49]--+-00.0
| | \-00.2
| \-08.2-[4a]----00.0
+-[0000:20]-+-00.0
| +-00.2
| +-01.0
| +-02.0
| +-03.0
| +-04.0
| +-05.0
| +-07.0
| +-07.1-[21]--+-00.0
| | \-00.2
| +-08.0
| \-08.1-[22]--+-00.0
| +-00.1
| +-00.2
| \-00.3
\-[0000:00]-+-00.0
+-00.2
+-01.0
+-01.1-[01]----00.0
+-01.2-[02]----00.0
+-01.3-[03]--
+-01.4-[04]--
+-02.0
+-03.0
+-04.0
+-05.0
+-07.0
+-07.1-[05]--+-00.0
| \-00.2
+-08.0
+-08.1-[06]--+-00.0
| +-00.2
| \-00.3
+-14.0
+-14.3
+-18.0
+-18.1
+-18.2
+-18.3
+-18.4
+-18.5
+-18.6
+-18.7
+-19.0
+-19.1
+-19.2
+-19.3
+-19.4
+-19.5
+-19.6
\-19.7