drivers/base/attribute_container.c

23 /* This is a private structure used to tie the classdev and the
28 	struct device classdev;
35 	get_device(&ic->classdev);
42 	put_device(&ic->classdev);
47  * attribute_container_classdev_to_container - given a classdev, return the container
49  * @classdev: the class device created by attribute_container_add_device.
51  * Returns the container associated with this classdev.
54 attribute_container_classdev_to_container(struct device *classdev)
57 		container_of(classdev, struct internal_container, classdev);
112 static void attribute_container_release(struct device *classdev)
115 		= container_of(classdev, struct internal_container, classdev);
116 	struct device *dev = classdev->parent;
133  * might be necessary is to allocate and initialise the classdev and
138  * which is not relinquished until the release of the classdev.
165 		device_initialize(&ic->classdev);
166 		ic->classdev.parent = get_device(dev);
167 		ic->classdev.class = cont->class;
169 		dev_set_name(&ic->classdev, "%s", dev_name(dev));
171 			fn(cont, dev, &ic->classdev);
173 			attribute_container_add_class_device(&ic->classdev);
198  * still has a reference to the classdev, then the memory occupied
199  * will not be freed until the classdev is released).  If you want a
203  * to do the final put on the classdev.
225 			if (dev != ic->classdev.parent)
229 				fn(cont, dev, &ic->classdev);
231 				attribute_container_remove_attrs(&ic->classdev);
232 				device_unregister(&ic->classdev);
255 		if (dev == ic->classdev.parent) {
256 			ret = fn(cont, dev, &ic->classdev);
276 		if (dev == ic->classdev.parent)
277 			undo(cont, dev, &ic->classdev);
284  * matching classdev or fail all of them.
287  * @fn:   the function to execute for each classdev.
292  * undo the partial work that has been done, on previous classdev.  It
343  * attribute_container_device_trigger - execute a trigger for each matching classdev
346  * @fn:   the function to execute for each classdev.
349  * the container and the classdev.  If you only care about the
374 			if (dev == ic->classdev.parent)
375 				fn(cont, dev, &ic->classdev);
388  * matching containers (not the classdev) associated with a device.
391  * actually needs to know the classdev.
411  * @classdev: The class device
417 attribute_container_add_attrs(struct device *classdev)
420 		attribute_container_classdev_to_container(classdev);
430 		return sysfs_create_group(&classdev->kobj, cont->grp);
434 		error = device_create_file(classdev, attrs[i]);
445  * @classdev:	the class device to add
448  * attribute containers, namely add the classdev to the system and then
452 attribute_container_add_class_device(struct device *classdev)
454 	int error = device_add(classdev);
458 	return attribute_container_add_attrs(classdev);
466  * @classdev:	the class device to add
474 					     struct device *classdev)
476 	return attribute_container_add_class_device(classdev);
482  * @classdev: The class device to remove the files from
486 attribute_container_remove_attrs(struct device *classdev)
489 		attribute_container_classdev_to_container(classdev);
497 		sysfs_remove_group(&classdev->kobj, cont->grp);
502 		device_remove_file(classdev, attrs[i]);
508  * @classdev: the class device
514 attribute_container_class_device_del(struct device *classdev)
516 	attribute_container_remove_attrs(classdev);
517 	device_del(classdev);
538 		if (ic->classdev.parent == dev) {
539 			cdev = &ic->classdev;