diff options
Diffstat (limited to 'drivers/base/class.c')
| -rw-r--r-- | drivers/base/class.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/base/class.c b/drivers/base/class.c index 73d44cf53db..3cf6eb36f3d 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -442,6 +442,13 @@ static ssize_t show_dev(struct class_device *class_dev, char *buf) return print_dev_t(buf, class_dev->devt); } +static ssize_t store_uevent(struct class_device *class_dev, + const char *buf, size_t count) +{ + kobject_hotplug(&class_dev->kobj, KOBJ_ADD); + return count; +} + void class_device_initialize(struct class_device *class_dev) { kobj_set_kset_s(class_dev, class_obj_subsys); @@ -497,6 +504,12 @@ int class_device_add(struct class_device *class_dev) goto register_done; /* add the needed attributes to this device */ + class_dev->uevent_attr.attr.name = "uevent"; + class_dev->uevent_attr.attr.mode = S_IWUSR; + class_dev->uevent_attr.attr.owner = parent->owner; + class_dev->uevent_attr.store = store_uevent; + class_device_create_file(class_dev, &class_dev->uevent_attr); + if (MAJOR(class_dev->devt)) { struct class_device_attribute *attr; attr = kzalloc(sizeof(*attr), GFP_KERNEL); @@ -505,12 +518,10 @@ int class_device_add(struct class_device *class_dev) kobject_del(&class_dev->kobj); goto register_done; } - attr->attr.name = "dev"; attr->attr.mode = S_IRUGO; attr->attr.owner = parent->owner; attr->show = show_dev; - attr->store = NULL; class_device_create_file(class_dev, attr); class_dev->devt_attr = attr; } @@ -621,6 +632,7 @@ void class_device_del(struct class_device *class_dev) sysfs_remove_link(&class_dev->kobj, "device"); sysfs_remove_link(&class_dev->dev->kobj, class_name); } + class_device_remove_file(class_dev, &class_dev->uevent_attr); if (class_dev->devt_attr) class_device_remove_file(class_dev, class_dev->devt_attr); class_device_remove_attrs(class_dev); |