system pci phys_function virt_functions usb_device usb net 80203 80211 fc_host vports_ops scsi_host scsi storage hotpluggable removable 1 0 (0x)?[0-9a-f]+ ([a-fA-F0-9]{2}:){5}[a-fA-F0-9]{2} /[a-zA-Z0-9_\+\-/%]+