1 /*
2  * attribute_container.h - a generic container for all classes
3  *
4  * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
5  *
6  * This file is licensed under GPLv2
7  */
8 
9 #ifndef _ATTRIBUTE_CONTAINER_H_
10 #define _ATTRIBUTE_CONTAINER_H_
11 
12 #include <linux/list.h>
13 #include <linux/klist.h>
14 
15 struct device;
16 
17 struct attribute_container {
18 	struct list_head	node;
19 	struct klist		containers;
20 	struct class		*class;
21 	const struct attribute_group *grp;
22 	struct device_attribute **attrs;
23 	int (*match)(struct attribute_container *, struct device *);
24 #define	ATTRIBUTE_CONTAINER_NO_CLASSDEVS	0x01
25 	unsigned long		flags;
26 };
27 
28 static inline int
29 attribute_container_no_classdevs(struct attribute_container *atc)
30 {
31 	return atc->flags & ATTRIBUTE_CONTAINER_NO_CLASSDEVS;
32 }
33 
34 static inline void
35 attribute_container_set_no_classdevs(struct attribute_container *atc)
36 {
37 	atc->flags |= ATTRIBUTE_CONTAINER_NO_CLASSDEVS;
38 }
39 
40 int attribute_container_register(struct attribute_container *cont);
41 int __must_check attribute_container_unregister(struct attribute_container *cont);
42 void attribute_container_create_device(struct device *dev,
43 				       int (*fn)(struct attribute_container *,
44 						 struct device *,
45 						 struct device *));
46 void attribute_container_add_device(struct device *dev,
47 				    int (*fn)(struct attribute_container *,
48 					      struct device *,
49 					      struct device *));
50 void attribute_container_remove_device(struct device *dev,
51 				       void (*fn)(struct attribute_container *,
52 						  struct device *,
53 						  struct device *));
54 void attribute_container_device_trigger(struct device *dev,
55 					int (*fn)(struct attribute_container *,
56 						  struct device *,
57 						  struct device *));
58 void attribute_container_trigger(struct device *dev,
59 				 int (*fn)(struct attribute_container *,
60 					   struct device *));
61 int attribute_container_add_attrs(struct device *classdev);
62 int attribute_container_add_class_device(struct device *classdev);
63 int attribute_container_add_class_device_adapter(struct attribute_container *cont,
64 						 struct device *dev,
65 						 struct device *classdev);
66 void attribute_container_remove_attrs(struct device *classdev);
67 void attribute_container_class_device_del(struct device *classdev);
68 struct attribute_container *attribute_container_classdev_to_container(struct device *);
69 struct device *attribute_container_find_class_device(struct attribute_container *, struct device *);
70 struct device_attribute **attribute_container_classdev_to_attrs(const struct device *classdev);
71 
72 #endif
73