//sys/class/pci_bus/0000:22/subsystem/0000:11/subsystem/0000:0b/bridge/driver/0000:00:15.6/subsystem/devices/0000:00:15.1/0000:00:15.1:pcie00/subsystem/devices/0000:00:15.4:pcie00/bus/devices/0000:00:18.3:pcie00/uevent