82     fn register_bultinin_device(&self) {  in register_bultinin_device()
98     pub fn register_device<T: DeviceINode>(  in register_device()
149     pub fn unregister_device<T: DeviceINode>(  in unregister_device()
248     pub fn add_dir(&self, name: &str) -> Result<(), SystemError> {  in add_dir()
265     pub fn add_dev(&self, name: &str, dev: Arc<dyn IndexNode>) -> Result<(), SystemError> {  in add_dev()
276     pub fn remove(&self, name: &str) -> Result<(), SystemError> {  in remove()
289         &self,  in do_create_with_data()
344         &self,  in open()
351     fn close(&self, _data: &mut super::vfs::FilePrivateData) -> Result<(), SystemError> {  in close()
356         &self,  in create_with_data()
368     fn find(&self, name: &str) -> Result<Arc<dyn IndexNode>, SystemError> {  in find()
393     fn get_entry_name(&self, ino: super::vfs::InodeId) -> Result<String, SystemError> {  in get_entry_name()
425     fn ioctl(&self, _cmd: u32, _data: usize) -> Result<usize, SystemError> {  in ioctl()
447     fn set_metadata(&self, metadata: &Metadata) -> Result<(), SystemError> {  in set_metadata()
473         &self,  in read_at()
485         &self,  in write_at()
497     fn set_fs(&self, fs: Weak<DevFS>);  in set_fs()