V4L/DVB (9903): uvcvideo: V4L2 zoom controls support

Add support for absolute and continuous zoom controls (mapped to absolute
and relative UVC zoom controls).

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h
index 00d593776b86..2a5bdacbaf27 100644
--- a/drivers/media/video/uvc/uvcvideo.h
+++ b/drivers/media/video/uvc/uvcvideo.h
@@ -384,6 +384,11 @@ struct uvc_control_mapping {
 
         struct uvc_menu_info *menu_info;
         __u32 menu_count;
+
+        __s32 (*get) (struct uvc_control_mapping *mapping, __u8 query,
+                      const __u8 *data);
+        void (*set) (struct uvc_control_mapping *mapping, __s32 value,
+                     __u8 *data);
 };
 
 struct uvc_control {