1 files changed, 40 insertions, 31 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index de2d6fe349de..06e5d42f2c7b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -14,6 +14,7 @@
 #include <linux/config.h>
 #include <linux/ioport.h>
 #include <linux/kobject.h>
+#include <linux/klist.h>
 #include <linux/list.h>
 #include <linux/types.h>
 #include <linux/module.h>
@@ -44,14 +45,15 @@ struct device;
 struct device_driver;
 struct class;
 struct class_device;
-struct class_simple;
 
 struct bus_type {
-        char                    * name;
+        const char              * name;
 
         struct subsystem        subsys;
         struct kset             drivers;
         struct kset             devices;
+        struct klist            klist_devices;
+        struct klist            klist_drivers;
 
         struct bus_attribute    * bus_attrs;
         struct device_attribute * dev_attrs;
@@ -67,7 +69,7 @@ struct bus_type {
 extern int bus_register(struct bus_type * bus);
 extern void bus_unregister(struct bus_type * bus);
 
-extern int bus_rescan_devices(struct bus_type * bus);
+extern void bus_rescan_devices(struct bus_type * bus);
 
 extern struct bus_type * get_bus(struct bus_type * bus);
 extern void put_bus(struct bus_type * bus);
@@ -78,6 +80,8 @@ extern struct bus_type * find_bus(char * name);
 
 int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data,
                      int (*fn)(struct device *, void *));
+struct device * bus_find_device(struct bus_type *bus, struct device *start,
+                                void *data, int (*match)(struct device *, void *));
 
 int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, 
                      void * data, int (*fn)(struct device_driver *, void *));
@@ -98,17 +102,18 @@ extern int bus_create_file(struct bus_type *, struct bus_attribute *);
 extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
 
 struct device_driver {
-        char                    * name;
+        const char              * name;
         struct bus_type         * bus;
 
         struct completion       unloaded;
         struct kobject          kobj;
-        struct list_head        devices;
+        struct klist            klist_devices;
+        struct klist_node       knode_bus;
 
-        struct module           * owner;
+        struct module           * owner;
 
         int     (*probe)        (struct device * dev);
-        int     (*remove)       (struct device * dev);
+        int     (*remove)       (struct device * dev);
         void    (*shutdown)     (struct device * dev);
         int     (*suspend)      (struct device * dev, pm_message_t state, u32 level);
         int     (*resume)       (struct device * dev, u32 level);
@@ -137,12 +142,19 @@ struct driver_attribute driver_attr_##_name = __ATTR(_name,_mode,_show,_store)
 extern int driver_create_file(struct device_driver *, struct driver_attribute *);
 extern void driver_remove_file(struct device_driver *, struct driver_attribute *);
 
+extern int driver_for_each_device(struct device_driver * drv, struct device * start,
+                                  void * data, int (*fn)(struct device *, void *));
+struct device * driver_find_device(struct device_driver *drv,
+                                   struct device *start, void *data,
+                                   int (*match)(struct device *, void *));
+
 
 /*
  * device classes
  */
 struct class {
-        char                    * name;
+        const char              * name;
+        struct module           * owner;
 
         struct subsystem        subsys;
         struct list_head        children;
@@ -185,6 +197,7 @@ struct class_device {
         struct kobject          kobj;
         struct class            * class;        /* required */
         dev_t                   devt;           /* dev_t, creates the sysfs "dev" */
+        struct class_device_attribute *devt_attr;
         struct device           * dev;          /* not necessary, but nice to have */
         void                    * class_data;   /* class-specific data */
 
@@ -245,26 +258,28 @@ struct class_interface {
 extern int class_interface_register(struct class_interface *);
 extern void class_interface_unregister(struct class_interface *);
 
-/* interface for class simple stuff */
-extern struct class_simple *class_simple_create(struct module *owner, char *name);
-extern void class_simple_destroy(struct class_simple *cs);
-extern struct class_device *class_simple_device_add(struct class_simple *cs, dev_t dev, struct device *device, const char *fmt, ...)
-        __attribute__((format(printf,4,5)));
-extern int class_simple_set_hotplug(struct class_simple *, 
-        int (*hotplug)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size));
-extern void class_simple_device_remove(dev_t dev);
+extern struct class *class_create(struct module *owner, char *name);
+extern void class_destroy(struct class *cls);
+extern struct class_device *class_device_create(struct class *cls, dev_t devt,
+                                                struct device *device, char *fmt, ...)
+                                        __attribute__((format(printf,4,5)));
+extern void class_device_destroy(struct class *cls, dev_t devt);
 
 
 struct device {
-        struct list_head node;          /* node in sibling list */
-        struct list_head bus_list;      /* node in bus's list */
-        struct list_head driver_list;
-        struct list_head children;
+        struct klist            klist_children;
+        struct klist_node       knode_parent;           /* node in sibling list */
+        struct klist_node       knode_driver;
+        struct klist_node       knode_bus;
         struct device   * parent;
 
         struct kobject kobj;
         char    bus_id[BUS_ID_SIZE];    /* position on parent bus */
 
+        struct semaphore        sem;    /* semaphore to synchronize calls to
+                                         * its driver.
+                                         */
+
         struct bus_type * bus;          /* type of bus device is on */
         struct device_driver *driver;   /* which driver has allocated this
                                            device */
@@ -290,12 +305,6 @@ struct device {
         void    (*release)(struct device * dev);
 };
 
-static inline struct device *
-list_to_dev(struct list_head *node)
-{
-        return list_entry(node, struct device, node);
-}
-
 static inline void *
 dev_get_drvdata (struct device *dev)
 {
@@ -323,7 +332,6 @@ extern int device_for_each_child(struct device *, void *,
  * Manual binding of a device to driver. See drivers/base/bus.c
  * for information on use.
  */
-extern int  driver_probe_device(struct device_driver * drv, struct device * dev);
 extern void device_bind_driver(struct device * dev);
 extern void device_release_driver(struct device * dev);
 extern int  device_attach(struct device * dev);
@@ -334,8 +342,10 @@ extern void driver_attach(struct device_driver * drv);
 
 struct device_attribute {
         struct attribute        attr;
-        ssize_t (*show)(struct device * dev, char * buf);
-        ssize_t (*store)(struct device * dev, const char * buf, size_t count);
+        ssize_t (*show)(struct device *dev, struct device_attribute *attr,
+                        char *buf);
+        ssize_t (*store)(struct device *dev, struct device_attribute *attr,
+                         const char *buf, size_t count);
 };
 
 #define DEVICE_ATTR(_name,_mode,_show,_store) \
@@ -362,13 +372,12 @@ extern int (*platform_notify_remove)(struct device * dev);
  */
 extern struct device * get_device(struct device * dev);
 extern void put_device(struct device * dev);
-extern struct device *device_find(const char *name, struct bus_type *bus);
 
 
 /* drivers/base/platform.c */
 
 struct platform_device {
-        char            * name;
+        const char      * name;
         u32             id;
         struct device   dev;
         u32             num_resources;