LXR linux-bk/include/linux/kobject

   1/*
   2 * kobject_uevent.h - list of kobject user events that can be generated
   3 *
   4 * Copyright (C) 2004 IBM Corp.
   5 * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
   6 *
   7 * This file is released under the GPLv2.
   8 *
   9 */
  10
  11#ifndef _KOBJECT_EVENT_H_
  12#define _KOBJECT_EVENT_H_
  13
  14#define HOTPLUG_PATH_LEN        256
  15
  16/* path to the hotplug userspace helper executed on an event */
  17extern char hotplug_path[];
  18
  19/*
  20 * If you add an action here, you must also add the proper string to the
  21 * lib/kobject_uevent.c file.
  22 */
  23typedef int __bitwise kobject_action_t;
  24enum kobject_action {
  25        KOBJ_ADD        = (__force kobject_action_t) 0x01,      /* add event, for hotplug */
  26        KOBJ_REMOVE     = (__force kobject_action_t) 0x02,      /* remove event, for hotplug */
  27        KOBJ_CHANGE     = (__force kobject_action_t) 0x03,      /* a sysfs attribute file has changed */
  28        KOBJ_MOUNT      = (__force kobject_action_t) 0x04,      /* mount event for block devices */
  29        KOBJ_UMOUNT     = (__force kobject_action_t) 0x05,      /* umount event for block devices */
  30        KOBJ_OFFLINE    = (__force kobject_action_t) 0x06,      /* offline event for hotplug devices */
  31        KOBJ_ONLINE     = (__force kobject_action_t) 0x07,      /* online event for hotplug devices */
  32};
  33
  34
  35#ifdef CONFIG_KOBJECT_UEVENT
  36int kobject_uevent(struct kobject *kobj,
  37                   enum kobject_action action,
  38                   struct attribute *attr);
  39int kobject_uevent_atomic(struct kobject *kobj,
  40                          enum kobject_action action,
  41                          struct attribute *attr);
  42#else
  43static inline int kobject_uevent(struct kobject *kobj,
  44                                 enum kobject_action action,
  45                                 struct attribute *attr)
  46{
  47        return 0;
  48}
  49static inline int kobject_uevent_atomic(struct kobject *kobj,
  50                                        enum kobject_action action,
  51                                        struct attribute *attr)
  52{
  53        return 0;
  54}
  55#endif
  56
  57#endif
  58