116     type Ptr: ForeignOwnable + Send + Sync;  typedef
121     fn open(_file: &File, _misc: &MiscDeviceRegistration<Self>) -> Result<Self::Ptr>;  in open()  argument
124     fn release(device: Self::Ptr, _file: &File) {  in release()  argument
137         _device: <Self::Ptr as ForeignOwnable>::Borrowed<'_>,  in mmap()
145     fn read_iter(_kiocb: Kiocb<'_, Self::Ptr>, _iov: &mut IovIterDest<'_>) -> Result<usize> {  in read_iter()  argument
150     fn write_iter(_kiocb: Kiocb<'_, Self::Ptr>, _iov: &mut IovIterSource<'_>) -> Result<usize> {  in write_iter()  argument
160         _device: <Self::Ptr as ForeignOwnable>::Borrowed<'_>,  in ioctl()
177         _device: <Self::Ptr as ForeignOwnable>::Borrowed<'_>,  in compat_ioctl()
187         _device: <Self::Ptr as ForeignOwnable>::Borrowed<'_>,  in show_fdinfo()
248         let ptr = unsafe { <T::Ptr as ForeignOwnable>::from_foreign(private) };  in release()
311         let device = unsafe { <T::Ptr as ForeignOwnable>::borrow(private.cast()) };  in mmap()
332         let device = unsafe { <T::Ptr as ForeignOwnable>::borrow(private) };  in ioctl()
357         let device = unsafe { <T::Ptr as ForeignOwnable>::borrow(private) };  in compat_ioctl()
378         let device = unsafe { <T::Ptr as ForeignOwnable>::borrow(private) };  in show_fdinfo()