PCI event environment

argv[0] = hotplug_path
argv[1] = pci
argv[2] = 0

HOME = /
PATH = /sbin:/bin:/usr/sbin:/usr/bin
PCI_CLASS = class_code
PCI_ID = vendor:device
PCI_SUBSYS_ID = subsystem_vendor:subsystem_device
PCI_SLOT_NAME = slot_name
ACTION = action


action=(add|remove)

red is actual values
green is replaced with runtime information