pci_bus_speed 120 include/linux/pci_hotplug.h int (*get_max_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value); pci_bus_speed 121 include/linux/pci_hotplug.h int (*get_cur_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value); pci_bus_speed 139 include/linux/pci_hotplug.h enum pci_bus_speed max_bus_speed; pci_bus_speed 140 include/linux/pci_hotplug.h enum pci_bus_speed cur_bus_speed;