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drivers/base/base.h
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#include <linux/notifier.h> |
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/** |
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* struct subsys_private - structure to hold the private to the driver core portions of the bus_type/class structure. |
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* |
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* @subsys - the struct kset that defines this subsystem |
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* @devices_kset - the subsystem's 'devices' directory * @interfaces - list of subsystem interfaces associated * @mutex - protect the devices, and interfaces lists. |
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* * @drivers_kset - the list of drivers associated |
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* @klist_devices - the klist to iterate over the @devices_kset * @klist_drivers - the klist to iterate over the @drivers_kset * @bus_notifier - the bus notifier list for anything that cares about things |
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* on this bus. |
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* @bus - pointer back to the struct bus_type that this structure is associated |
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* with. * |
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* @glue_dirs - "glue" directory to put in-between the parent device to * avoid namespace conflicts |
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* @class - pointer back to the struct class that this structure is associated * with. |
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* * This structure is the one that is the actual kobject allowing struct |
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* bus_type/class to be statically allocated safely. Nothing outside of the * driver core should ever touch these fields. |
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*/ |
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struct subsys_private { |
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struct kset subsys; |
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struct kset *devices_kset; |
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struct list_head interfaces; struct mutex mutex; |
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struct kset *drivers_kset; |
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struct klist klist_devices; struct klist klist_drivers; struct blocking_notifier_head bus_notifier; unsigned int drivers_autoprobe:1; struct bus_type *bus; |
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struct kset glue_dirs; |
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struct class *class; |
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}; |
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#define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj) |
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struct driver_private { struct kobject kobj; struct klist klist_devices; struct klist_node knode_bus; struct module_kobject *mkobj; struct device_driver *driver; }; #define to_driver(obj) container_of(obj, struct driver_private, kobj) |
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/** * struct device_private - structure to hold the private to the driver core portions of the device structure. * |
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* @klist_children - klist containing all children of this device * @knode_parent - node in sibling list |
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* @knode_driver - node in driver list |
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* @knode_bus - node in bus list |
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* @driver_data - private pointer for driver specific info. Will turn into a * list soon. |
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* @device - pointer back to the struct class that this structure is * associated with. * * Nothing outside of the driver core should ever touch these fields. */ struct device_private { |
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struct klist klist_children; struct klist_node knode_parent; |
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struct klist_node knode_driver; |
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struct klist_node knode_bus; |
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void *driver_data; |
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struct device *device; }; |
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#define to_device_private_parent(obj) \ container_of(obj, struct device_private, knode_parent) |
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#define to_device_private_driver(obj) \ container_of(obj, struct device_private, knode_driver) |
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#define to_device_private_bus(obj) \ container_of(obj, struct device_private, knode_bus) |
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extern int device_private_init(struct device *dev); |
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/* initialisation functions */ |
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extern int devices_init(void); extern int buses_init(void); extern int classes_init(void); extern int firmware_init(void); |
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#ifdef CONFIG_SYS_HYPERVISOR extern int hypervisor_init(void); #else static inline int hypervisor_init(void) { return 0; } #endif |
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extern int platform_bus_init(void); |
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extern void cpu_dev_init(void); |
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extern int bus_add_device(struct device *dev); |
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extern void bus_probe_device(struct device *dev); |
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extern void bus_remove_device(struct device *dev); |
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extern int bus_add_driver(struct device_driver *drv); extern void bus_remove_driver(struct device_driver *drv); |
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extern void driver_detach(struct device_driver *drv); extern int driver_probe_device(struct device_driver *drv, struct device *dev); |
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static inline int driver_match_device(struct device_driver *drv, struct device *dev) { |
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return drv->bus->match ? drv->bus->match(dev, drv) : 1; |
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} |
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extern char *make_class_name(const char *name, struct kobject *kobj); |
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extern int devres_release_all(struct device *dev); |
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/* /sys/devices directory */ |
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extern struct kset *devices_kset; |
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#if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS) |
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extern void module_add_driver(struct module *mod, struct device_driver *drv); extern void module_remove_driver(struct device_driver *drv); #else static inline void module_add_driver(struct module *mod, struct device_driver *drv) { } static inline void module_remove_driver(struct device_driver *drv) { } #endif |
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#ifdef CONFIG_DEVTMPFS extern int devtmpfs_init(void); #else static inline int devtmpfs_init(void) { return 0; } #endif |