Adding kobjects to ksets

To put a kobject in a kset:
Set kobject->kset accordingly
Call kobject_add(&kobject);
Can also call kobject_register(&kobject);
Same as kobject_init() + kobject_add()

This operation has side effects
Increments reference count
Of the parent kobject too
Adds the kobject to sysfs
Generates hotplug events

Removing a kobject
Use kobject_del() or kobject_unregister()