2e5f10e4f0
This patch (as1087d) fixes a long-standing problem in usbcore: Device, interface, and endpoint attributes aren't added until _after_ the creation uevent has already been broadcast. Unfortunately there are a few attributes which cannot be created that early. The "descriptors" attribute is binary and so must be created separately. The power-management attributes can't be created until the dev/power/ group exists. And the interface string can vary from one altsetting to another, so it has to be created dynamically. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
169 lines
4.9 KiB
C
169 lines
4.9 KiB
C
/* Functions local to drivers/usb/core/ */
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extern int usb_create_sysfs_dev_files(struct usb_device *dev);
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extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
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extern int usb_create_sysfs_intf_files(struct usb_interface *intf);
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extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
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extern int usb_create_ep_files(struct device *parent,
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struct usb_host_endpoint *endpoint,
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struct usb_device *udev);
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extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint);
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extern void usb_enable_endpoint(struct usb_device *dev,
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struct usb_host_endpoint *ep);
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extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr);
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extern void usb_disable_interface(struct usb_device *dev,
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struct usb_interface *intf);
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extern void usb_release_interface_cache(struct kref *ref);
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extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
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extern int usb_deauthorize_device(struct usb_device *);
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extern int usb_authorize_device(struct usb_device *);
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extern void usb_detect_quirks(struct usb_device *udev);
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extern int usb_get_device_descriptor(struct usb_device *dev,
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unsigned int size);
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extern char *usb_cache_string(struct usb_device *udev, int index);
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extern int usb_set_configuration(struct usb_device *dev, int configuration);
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extern int usb_choose_configuration(struct usb_device *udev);
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extern void usb_kick_khubd(struct usb_device *dev);
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extern int usb_match_device(struct usb_device *dev,
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const struct usb_device_id *id);
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extern int usb_hub_init(void);
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extern void usb_hub_cleanup(void);
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extern int usb_major_init(void);
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extern void usb_major_cleanup(void);
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extern int usb_host_init(void);
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extern void usb_host_cleanup(void);
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#ifdef CONFIG_PM
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extern void usb_autosuspend_work(struct work_struct *work);
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extern int usb_port_suspend(struct usb_device *dev);
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extern int usb_port_resume(struct usb_device *dev);
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extern int usb_external_suspend_device(struct usb_device *udev,
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pm_message_t msg);
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extern int usb_external_resume_device(struct usb_device *udev);
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static inline void usb_pm_lock(struct usb_device *udev)
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{
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mutex_lock_nested(&udev->pm_mutex, udev->level);
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}
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static inline void usb_pm_unlock(struct usb_device *udev)
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{
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mutex_unlock(&udev->pm_mutex);
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}
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#else
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static inline int usb_port_suspend(struct usb_device *udev)
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{
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return 0;
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}
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static inline int usb_port_resume(struct usb_device *udev)
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{
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return 0;
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}
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static inline void usb_pm_lock(struct usb_device *udev) {}
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static inline void usb_pm_unlock(struct usb_device *udev) {}
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#endif
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#ifdef CONFIG_USB_SUSPEND
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extern void usb_autosuspend_device(struct usb_device *udev);
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extern void usb_try_autosuspend_device(struct usb_device *udev);
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extern int usb_autoresume_device(struct usb_device *udev);
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#else
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#define usb_autosuspend_device(udev) do {} while (0)
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#define usb_try_autosuspend_device(udev) do {} while (0)
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static inline int usb_autoresume_device(struct usb_device *udev)
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{
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return 0;
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}
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#endif
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extern struct workqueue_struct *ksuspend_usb_wq;
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extern struct bus_type usb_bus_type;
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extern struct device_type usb_device_type;
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extern struct device_type usb_if_device_type;
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extern struct usb_device_driver usb_generic_driver;
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static inline int is_usb_device(const struct device *dev)
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{
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return dev->type == &usb_device_type;
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}
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/* Do the same for device drivers and interface drivers. */
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static inline int is_usb_device_driver(struct device_driver *drv)
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{
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return container_of(drv, struct usbdrv_wrap, driver)->
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for_devices;
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}
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/* Interfaces and their "power state" are owned by usbcore */
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static inline void mark_active(struct usb_interface *f)
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{
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f->is_active = 1;
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}
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static inline void mark_quiesced(struct usb_interface *f)
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{
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f->is_active = 0;
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}
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static inline int is_active(const struct usb_interface *f)
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{
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return f->is_active;
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}
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/* for labeling diagnostics */
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extern const char *usbcore_name;
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/* sysfs stuff */
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extern struct attribute_group *usb_device_groups[];
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extern struct attribute_group *usb_interface_groups[];
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/* usbfs stuff */
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extern struct mutex usbfs_mutex;
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extern struct usb_driver usbfs_driver;
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extern const struct file_operations usbfs_devices_fops;
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extern const struct file_operations usbdev_file_operations;
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extern void usbfs_conn_disc_event(void);
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extern int usb_devio_init(void);
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extern void usb_devio_cleanup(void);
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struct dev_state {
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struct list_head list; /* state list */
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struct usb_device *dev;
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struct file *file;
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spinlock_t lock; /* protects the async urb lists */
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struct list_head async_pending;
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struct list_head async_completed;
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wait_queue_head_t wait; /* wake up if a request completed */
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unsigned int discsignr;
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struct pid *disc_pid;
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uid_t disc_uid, disc_euid;
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void __user *disccontext;
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unsigned long ifclaimed;
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u32 secid;
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};
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/* internal notify stuff */
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extern void usb_notify_add_device(struct usb_device *udev);
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extern void usb_notify_remove_device(struct usb_device *udev);
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extern void usb_notify_add_bus(struct usb_bus *ubus);
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extern void usb_notify_remove_bus(struct usb_bus *ubus);
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