sysfs_file_kobj
struct kobject *kobj = sysfs_file_kobj(of->kn);
struct kobject *kobj = sysfs_file_kobj(of->kn);
struct kobject *kobj = sysfs_file_kobj(of->kn);
struct kobject *kobj = sysfs_file_kobj(of->kn);
struct kobject *kobj = sysfs_file_kobj(of->kn);
struct kobject *kobj = sysfs_file_kobj(kn);
struct kobject *kobj = sysfs_file_kobj(of->kn);
struct kobject *kobj = sysfs_file_kobj(kn);
struct kobject *kobj = sysfs_file_kobj(of->kn);