text: #include <linux/pm.h>
  
  /* Functions local to drivers/usb/core/ */
  
  extern int usb_create_sysfs_dev_files(struct usb_device *dev);
  extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
  extern int usb_create_sysfs_intf_files(struct usb_interface *intf);
  extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
  extern int usb_create_ep_devs(struct device *parent,
  				struct usb_host_endpoint *endpoint,
  				struct usb_device *udev);
  extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
  
  extern void usb_enable_endpoint(struct usb_device *dev,
  		struct usb_host_endpoint *ep, bool reset_toggle);
  extern void usb_enable_interface(struct usb_device *dev,
  		struct usb_interface *intf, bool reset_toggles);
  extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
  		bool reset_hardware);
  extern void usb_disable_interface(struct usb_device *dev,
  		struct usb_interface *intf, bool reset_hardware);
  extern void usb_release_interface_cache(struct kref *ref);
  extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
  extern int usb_deauthorize_device(struct usb_device *);
  extern int usb_authorize_device(struct usb_device *);
  extern void usb_detect_quirks(struct usb_device *udev);
  extern int usb_remove_device(struct usb_device *udev);
  
  extern int usb_get_device_descriptor(struct usb_device *dev,
  		unsigned int size);
  extern char *usb_cache_string(struct usb_device *udev, int index);
  extern int usb_set_configuration(struct usb_device *dev, int configuration);
  extern int usb_choose_configuration(struct usb_device *udev);
  
  extern void usb_kick_khubd(struct usb_device *dev);
  extern int usb_match_device(struct usb_device *dev,
  			    const struct usb_device_id *id);
  extern void usb_forced_unbind_intf(struct usb_interface *intf);
  extern void usb_rebind_intf(struct usb_interface *intf);
  
  extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
  		void *owner);
  extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
  		void *owner);
  extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner);
  extern bool usb_device_is_owned(struct usb_device *udev);
  
  extern int  usb_hub_init(void);
  extern void usb_hub_cleanup(void);
  extern int usb_major_init(void);
  extern void usb_major_cleanup(void);
  
  #ifdef	CONFIG_PM
  
  extern int usb_suspend(struct device *dev, pm_message_t msg);
  extern int usb_resume(struct device *dev, pm_message_t msg);
  
  extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  
  #else
  
  static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  {
  	return 0;
  }
  
  static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  {
  	return 0;
  }
  
  #endif
  
  #ifdef CONFIG_USB_SUSPEND
  
  extern void usb_autosuspend_device(struct usb_device *udev);
  extern void usb_try_autosuspend_device(struct usb_device *udev);
  extern int usb_autoresume_device(struct usb_device *udev);
  extern int usb_remote_wakeup(struct usb_device *dev);
  
  #else
  
  #define usb_autosuspend_device(udev)		do {} while (0)
  #define usb_try_autosuspend_device(udev)	do {} while (0)
  static inline int usb_autoresume_device(struct usb_device *udev)
  {
  	return 0;
  }
  
  static inline int usb_remote_wakeup(struct usb_device *udev)
  {
  	return 0;
  }
  
  #endif
  
  extern struct bus_type usb_bus_type;
  extern struct device_type usb_device_type;
  extern struct device_type usb_if_device_type;
  extern struct device_type usb_ep_device_type;
  extern struct usb_device_driver usb_generic_driver;
  
  static inline int is_usb_device(const struct device *dev)
  {
  	return dev->type == &usb_device_type;
  }
  
  static inline int is_usb_interface(const struct device *dev)
  {
  	return dev->type == &usb_if_device_type;
  }
  
  static inline int is_usb_endpoint(const struct device *dev)
  {
  	return dev->type == &usb_ep_device_type;
  }
  
  /* Do the same for device drivers and interface drivers. */
  
  static inline int is_usb_device_driver(struct device_driver *drv)
  {
  	return container_of(drv, struct usbdrv_wrap, driver)->
  			for_devices;
  }
  
  
  /* for labeling diagnostics */
  extern const char *usbcore_name;
  
  /* sysfs stuff */
  extern const struct attribute_group *usb_device_groups[];
  extern const struct attribute_group *usb_interface_groups[];
  
  /* usbfs stuff */
  extern struct mutex usbfs_mutex;
  extern struct usb_driver usbfs_driver;
  extern const struct file_operations usbfs_devices_fops;
  extern const struct file_operations usbdev_file_operations;
  extern void usbfs_conn_disc_event(void);
  
  extern int usb_devio_init(void);
  extern void usb_devio_cleanup(void);
  
  /* internal notify stuff */
  extern void usb_notify_add_device(struct usb_device *udev);
  extern void usb_notify_remove_device(struct usb_device *udev);
  extern void usb_notify_add_bus(struct usb_bus *ubus);
  extern void usb_notify_remove_bus(struct usb_bus *ubus);
  
  