Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1
2/**
3 * struct bus_type_private - structure to hold the private to the driver core portions of the bus_type structure.
4 *
5 * @subsys - the struct kset that defines this bus. This is the main kobject
6 * @drivers_kset - the list of drivers associated with this bus
7 * @devices_kset - the list of devices associated with this bus
8 * @klist_devices - the klist to iterate over the @devices_kset
9 * @klist_drivers - the klist to iterate over the @drivers_kset
10 * @bus_notifier - the bus notifier list for anything that cares about things
11 * on this bus.
12 * @bus - pointer back to the struct bus_type that this structure is associated
13 * with.
14 *
15 * This structure is the one that is the actual kobject allowing struct
16 * bus_type to be statically allocated safely. Nothing outside of the driver
17 * core should ever touch these fields.
18 */
19struct bus_type_private {
20 struct kset subsys;
21 struct kset *drivers_kset;
22 struct kset *devices_kset;
23 struct klist klist_devices;
24 struct klist klist_drivers;
25 struct blocking_notifier_head bus_notifier;
26 unsigned int drivers_autoprobe:1;
27 struct bus_type *bus;
28};
29
30struct driver_private {
31 struct kobject kobj;
32 struct klist klist_devices;
33 struct klist_node knode_bus;
34 struct module_kobject *mkobj;
35 struct device_driver *driver;
36};
37#define to_driver(obj) container_of(obj, struct driver_private, kobj)
38
39/* initialisation functions */
40extern int devices_init(void);
41extern int buses_init(void);
42extern int classes_init(void);
43extern int firmware_init(void);
44#ifdef CONFIG_SYS_HYPERVISOR
45extern int hypervisor_init(void);
46#else
47static inline int hypervisor_init(void) { return 0; }
48#endif
49extern int platform_bus_init(void);
50extern int system_bus_init(void);
51extern int cpu_dev_init(void);
52
53extern int bus_add_device(struct device *dev);
54extern void bus_attach_device(struct device *dev);
55extern void bus_remove_device(struct device *dev);
56
57extern int bus_add_driver(struct device_driver *drv);
58extern void bus_remove_driver(struct device_driver *drv);
59
60extern void driver_detach(struct device_driver *drv);
61extern int driver_probe_device(struct device_driver *drv, struct device *dev);
62
63extern void sysdev_shutdown(void);
64extern int sysdev_suspend(pm_message_t state);
65extern int sysdev_resume(void);
66
67static inline struct class_device *to_class_dev(struct kobject *obj)
68{
69 return container_of(obj, struct class_device, kobj);
70}
71
72static inline
73struct class_device_attribute *to_class_dev_attr(struct attribute *_attr)
74{
75 return container_of(_attr, struct class_device_attribute, attr);
76}
77
78extern char *make_class_name(const char *name, struct kobject *kobj);
79
80extern int devres_release_all(struct device *dev);
81
82extern struct kset *devices_kset;
83
84#if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS)
85extern void module_add_driver(struct module *mod, struct device_driver *drv);
86extern void module_remove_driver(struct device_driver *drv);
87#else
88static inline void module_add_driver(struct module *mod,
89 struct device_driver *drv) { }
90static inline void module_remove_driver(struct device_driver *drv) { }
91#endif