Add v4l2_subdev_open() and v4l2_subdev_close() to subdev.h

Add v4l2_subdev_close() function and declare both in subdev.h.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Todor Tomov <ttomov@mm-sol.com>

2 files changed, 9 insertions, 1 deletions

diff --git a/subdev.c b/subdev.c
index b324d4e..3a8e82a 100644
--- a/subdev.c
+++ b/subdev.c
@@ -33,7 +33,7 @@
 #include "subdev.h"
 #include "tools.h"
 
-static int v4l2_subdev_open(struct media_entity *entity)
+int v4l2_subdev_open(struct media_entity *entity)
 {
 	if (entity->fd != -1)
 		return 0;
@@ -48,6 +48,11 @@ static int v4l2_subdev_open(struct media_entity *entity)
 	return 0;
 }
 
+void v4l2_subdev_close(struct media_entity *entity)
+{
+	close(entity->fd);
+}
+
 int v4l2_subdev_get_format(struct media_entity *entity,
 	struct v4l2_mbus_framefmt *format, unsigned int pad,
 	enum v4l2_subdev_format_whence which)
diff --git a/subdev.h b/subdev.h
index 7c1733d..976d066 100644
--- a/subdev.h
+++ b/subdev.h
@@ -24,6 +24,9 @@
 
 struct media_entity;
 
+int v4l2_subdev_open(struct media_entity *entity);
+
+void v4l2_subdev_close(struct media_entity *entity);
 
 int v4l2_subdev_get_format(struct media_entity *entity,
 	struct v4l2_mbus_framefmt *format, unsigned int pad,