- struct class * __class_create(struct module * owner, const char * name, struct lock_class_key * key);
- pointer to the module that is to "own" this struct class
- pointer to a string for the name of this class.
- the lock_class_key for this class; used by mutex lock debugging
This is used to create a struct class pointer that can then be used in calls to device_create.
Returns struct class pointer on success, or ERR_PTR on error.
Note, the pointer created here is to be destroyed when finished by making a call to class_destroy.