Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev

[safe/jmp/linux-2.6] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index a286429..847b763 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -2,7 +2,8 @@
  * device.h - generic, centralized driver model
  *
  * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
- * Copyright (c) 2004-2007 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (c) 2008-2009 Novell Inc.
  *
  * This file is released under the GPLv2
  *
@@ -130,7 +131,7 @@ struct device_driver {
        void (*shutdown) (struct device *dev);
        int (*suspend) (struct device *dev, pm_message_t state);
        int (*resume) (struct device *dev);
-       struct attribute_group **groups;
+       const struct attribute_group **groups;
 
        const struct dev_pm_ops *pm;
 
@@ -224,6 +225,14 @@ extern void class_unregister(struct class *class);
        __class_register(class, &__key);        \
 })
 
+struct class_compat;
+struct class_compat *class_compat_register(const char *name);
+void class_compat_unregister(struct class_compat *cls);
+int class_compat_create_link(struct class_compat *cls, struct device *dev,
+                            struct device *device_link);
+void class_compat_remove_link(struct class_compat *cls, struct device *dev,
+                             struct device *device_link);
+
 extern void class_dev_iter_init(struct class_dev_iter *iter,
                                struct class *class,
                                struct device *start,
@@ -287,7 +296,7 @@ extern void class_destroy(struct class *cls);
  */
 struct device_type {
        const char *name;
-       struct attribute_group **groups;
+       const struct attribute_group **groups;
        int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
        char *(*nodename)(struct device *dev);
        void (*release)(struct device *dev);
@@ -381,7 +390,6 @@ struct device {
        struct bus_type *bus;           /* type of bus device is on */
        struct device_driver *driver;   /* which driver has allocated this
                                           device */
-       void            *driver_data;   /* data private to the driver */
        void            *platform_data; /* Platform specific data, device
                                           core doesn't touch it */
        struct dev_pm_info      power;
@@ -412,7 +420,7 @@ struct device {
 
        struct klist_node       knode_class;
        struct class            *class;
-       struct attribute_group  **groups;       /* optional groups */
+       const struct attribute_group **groups;  /* optional groups */
 
        void    (*release)(struct device *dev);
 };
@@ -447,16 +455,6 @@ static inline void set_dev_node(struct device *dev, int node)
 }
 #endif
 
-static inline void *dev_get_drvdata(const struct device *dev)
-{
-       return dev->driver_data;
-}
-
-static inline void dev_set_drvdata(struct device *dev, void *data)
-{
-       dev->driver_data = data;
-}
-
 static inline unsigned int dev_get_uevent_suppress(const struct device *dev)
 {
        return dev->kobj.uevent_suppress;
@@ -490,6 +488,8 @@ extern int device_rename(struct device *dev, char *new_name);
 extern int device_move(struct device *dev, struct device *new_parent,
                       enum dpm_order dpm_order);
 extern const char *device_get_nodename(struct device *dev, const char **tmp);
+extern void *dev_get_drvdata(const struct device *dev);
+extern void dev_set_drvdata(struct device *dev, void *data);
 
 /*
  * Root device objects for grouping under /sys/devices
@@ -502,6 +502,11 @@ static inline struct device *root_device_register(const char *name)
 }
 extern void root_device_unregister(struct device *root);
 
+static inline void *dev_get_platdata(const struct device *dev)
+{
+       return dev->platform_data;
+}
+
 /*
  * Manual binding of a device to driver. See drivers/base/bus.c
  * for information on use.
@@ -547,6 +552,16 @@ extern void put_device(struct device *dev);
 
 extern void wait_for_device_probe(void);
 
+#ifdef CONFIG_DEVTMPFS
+extern int devtmpfs_create_node(struct device *dev);
+extern int devtmpfs_delete_node(struct device *dev);
+extern int devtmpfs_mount(const char *mountpoint);
+#else
+static inline int devtmpfs_create_node(struct device *dev) { return 0; }
+static inline int devtmpfs_delete_node(struct device *dev) { return 0; }
+static inline int devtmpfs_mount(const char *mountpoint) { return 0; }
+#endif
+
 /* drivers/base/power/shutdown.c */
 extern void device_shutdown(void);