1 files changed, 19 insertions, 2 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 6ab73f5c799a..8615b42b517a 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -154,6 +154,13 @@ static struct kset_hotplug_ops device_hotplug_ops = {
         .hotplug =      dev_hotplug,
 };
 
+static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
+                            const char *buf, size_t count)
+{
+        kobject_hotplug(&dev->kobj, KOBJ_ADD);
+        return count;
+}
+
 /**
  *      device_subsys - structure to be registered with kobject core.
  */
@@ -225,6 +232,7 @@ void device_initialize(struct device *dev)
                    klist_children_put);
         INIT_LIST_HEAD(&dev->dma_pools);
         init_MUTEX(&dev->sem);
+        device_init_wakeup(dev, 0);
 }
 
 /**
@@ -258,6 +266,14 @@ int device_add(struct device *dev)
 
         if ((error = kobject_add(&dev->kobj)))
                 goto Error;
+
+        dev->uevent_attr.attr.name = "uevent";
+        dev->uevent_attr.attr.mode = S_IWUSR;
+        if (dev->driver)
+                dev->uevent_attr.attr.owner = dev->driver->owner;
+        dev->uevent_attr.store = store_uevent;
+        device_create_file(dev, &dev->uevent_attr);
+
         kobject_hotplug(&dev->kobj, KOBJ_ADD);
         if ((error = device_pm_add(dev)))
                 goto PMError;
@@ -349,6 +365,7 @@ void device_del(struct device * dev)
 
         if (parent)
                 klist_del(&dev->knode_parent);
+        device_remove_file(dev, &dev->uevent_attr);
 
         /* Notify the platform of the removal, in case they
          * need to do anything...
@@ -390,11 +407,11 @@ static struct device * next_device(struct klist_iter * i)
 
 /**
  *      device_for_each_child - device child iterator.
- *      @dev:   parent struct device.
+ *      @parent: parent struct device.
  *      @data:  data for the callback.
  *      @fn:    function to be called for each device.
  *
- *      Iterate over @dev's child devices, and call @fn for each,
+ *      Iterate over @parent's child devices, and call @fn for each,
  *      passing it @data.
  *
  *      We check the return of @fn each time. If it returns anything