usb.h revision a8e7c5653562f88c0f5f53eac0a890c012655789 
1/* Functions local to drivers/usb/core/ */
2
3extern void usb_create_sysfs_dev_files (struct usb_device *dev);
4extern void usb_remove_sysfs_dev_files (struct usb_device *dev);
5extern void usb_create_sysfs_intf_files (struct usb_interface *intf);
6extern void usb_remove_sysfs_intf_files (struct usb_interface *intf);
7extern void usb_create_ep_files(struct device *parent, struct usb_host_endpoint *endpoint,
8				struct usb_device *udev);
9extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint);
10
11extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr);
12extern void usb_disable_interface (struct usb_device *dev,
13		struct usb_interface *intf);
14extern void usb_release_interface_cache(struct kref *ref);
15extern void usb_disable_device (struct usb_device *dev, int skip_ep0);
16
17extern int usb_get_device_descriptor(struct usb_device *dev,
18		unsigned int size);
19extern char *usb_cache_string(struct usb_device *udev, int index);
20extern int usb_set_configuration(struct usb_device *dev, int configuration);
21
22extern void usb_kick_khubd(struct usb_device *dev);
23extern void usb_suspend_root_hub(struct usb_device *hdev);
24extern void usb_resume_root_hub(struct usb_device *dev);
25
26extern int  usb_hub_init(void);
27extern void usb_hub_cleanup(void);
28extern int usb_major_init(void);
29extern void usb_major_cleanup(void);
30extern int usb_host_init(void);
31extern void usb_host_cleanup(void);
32
33extern int usb_suspend_both(struct usb_device *udev, pm_message_t msg);
34extern int usb_resume_both(struct usb_device *udev);
35extern int usb_port_suspend(struct usb_device *dev);
36extern int usb_port_resume(struct usb_device *dev);
37
38extern struct bus_type usb_bus_type;
39extern struct usb_device_driver usb_generic_driver;
40
41/* Here's how we tell apart devices and interfaces.  Luckily there's
42 * no such thing as a platform USB device, so we can steal the use
43 * of the platform_data field. */
44
45static inline int is_usb_device(struct device *dev)
46{
47	return dev->platform_data == &usb_generic_driver;
48}
49
50/* Do the same for device drivers and interface drivers. */
51
52static inline int is_usb_device_driver(struct device_driver *drv)
53{
54	return container_of(drv, struct usbdrv_wrap, driver)->
55			for_devices;
56}
57
58/* Interfaces and their "power state" are owned by usbcore */
59
60static inline void mark_active(struct usb_interface *f)
61{
62	f->dev.power.power_state.event = PM_EVENT_ON;
63}
64
65static inline void mark_quiesced(struct usb_interface *f)
66{
67	f->dev.power.power_state.event = PM_EVENT_FREEZE;
68}
69
70static inline int is_active(struct usb_interface *f)
71{
72	return f->dev.power.power_state.event == PM_EVENT_ON;
73}
74
75
76/* for labeling diagnostics */
77extern const char *usbcore_name;
78
79/* usbfs stuff */
80extern struct mutex usbfs_mutex;
81extern struct usb_driver usbfs_driver;
82extern struct file_operations usbfs_devices_fops;
83extern struct file_operations usbfs_device_file_operations;
84extern void usbfs_conn_disc_event(void);
85
86extern int usbdev_init(void);
87extern void usbdev_cleanup(void);
88
89struct dev_state {
90	struct list_head list;      /* state list */
91	struct usb_device *dev;
92	struct file *file;
93	spinlock_t lock;            /* protects the async urb lists */
94	struct list_head async_pending;
95	struct list_head async_completed;
96	wait_queue_head_t wait;     /* wake up if a request completed */
97	unsigned int discsignr;
98	pid_t disc_pid;
99	uid_t disc_uid, disc_euid;
100	void __user *disccontext;
101	unsigned long ifclaimed;
102	u32 secid;
103};
104
105/* internal notify stuff */
106extern void usb_notify_add_device(struct usb_device *udev);
107extern void usb_notify_remove_device(struct usb_device *udev);
108extern void usb_notify_add_bus(struct usb_bus *ubus);
109extern void usb_notify_remove_bus(struct usb_bus *ubus);
110
111