647     ) -> impl Iterator<Item = V4l2PlaneMutAccessorWithRawBacking<M>> {  in planes_iter_with_backing_mut()
660         std::iter::once(V4l2PlaneMutAccessorWithRawBacking::new_single_planar(  in planes_iter_with_backing_mut()
666                 .map(|p| V4l2PlaneMutAccessorWithRawBacking::new_multi_planar(p)),  in planes_iter_with_backing_mut()
674         impl Iterator<Item = V4l2PlaneMutAccessorWithRawBacking<Mmap>>,  in planes_with_backing_iter_mut()
675         impl Iterator<Item = V4l2PlaneMutAccessorWithRawBacking<UserPtr>>,  in planes_with_backing_iter_mut()
676         impl Iterator<Item = V4l2PlaneMutAccessorWithRawBacking<DmaBuf>>,  in planes_with_backing_iter_mut()
818 pub struct V4l2PlaneMutAccessorWithRawBacking<'a, M: Memory> {  struct
823 impl<'a, M: Memory> Deref for V4l2PlaneMutAccessorWithRawBacking<'a, M> {  argument
831 impl<'a, M: Memory> DerefMut for V4l2PlaneMutAccessorWithRawBacking<'a, M> {  implementation
837 impl<'a, M: Memory> V4l2PlaneMutAccessorWithRawBacking<'a, M> {  impl
871 impl<'a> V4l2PlaneMutAccessorWithRawBacking<'a, Mmap> {  implementation
881 impl<'a> V4l2PlaneMutAccessorWithRawBacking<'a, UserPtr> {  implementation
891 impl<'a> V4l2PlaneMutAccessorWithRawBacking<'a, DmaBuf> {  impl
903     M: Iterator<Item = V4l2PlaneMutAccessorWithRawBacking<'a, Mmap>>,
904     U: Iterator<Item = V4l2PlaneMutAccessorWithRawBacking<'a, UserPtr>>,
905     D: Iterator<Item = V4l2PlaneMutAccessorWithRawBacking<'a, DmaBuf>>,