//sys/class/pci_bus/0000:17/subsystem/0000:21/bridge/driver/0000:00:15.1/driver/0000:00:17.2/driver/0000:00:18.0/subsystem/devices/0000:00:17.0/0000:00:17.0:pcie02/bus/devices/0000:00:17.1:pcie00/uevent