libcamera: file_descriptor: Add a function to retrieve the inode

The inode is useful to check if two file descriptors refer to the same
file. Add a function to retrieve it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>

0 files changed, 0 insertions, 0 deletions