Linux Device Drivers Development

kobj_type

A struct kobj_type structure describes the behavior of kobjects. A kobj_type structure describes the type of object that embeds a kobject by means of the ktype field. Every structure that embeds a kobject needs a corresponding kobj_type, which will control what happens when the kobject is created and destroyed, and when attributes are read or written to. Every kobject has a field of the struct kobj_type type, which stands for kernel object type:

struct kobj_type { 
   void (*release)(struct kobject *); 
   const struct sysfs_ops sysfs_ops; 
   struct attribute **default_attrs; 
}; 

A struct kobj_type structure allows kernel objects to share common operations (sysfs_ops), whether those objects are functionally related or not. Fields of that structure ...