include/linux/attribute_container.h

   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