From f0beea8f46142ea7abd7ed3f44fd0967c603fae0 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 1 Aug 2010 19:05:09 -0300 Subject: [media] v4l: subdev: Add new file operations V4L2 sub-devices store pad formats and crop settings in the file handle. To let drivers initialize those settings properly, add an open operation that is called when the subdev is opened as well as a corresponding close operation. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-subdev.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/media') diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 72f49eb3002..f5dddacf849 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -42,6 +42,7 @@ struct v4l2_ctrl_handler; struct v4l2_event_subscription; struct v4l2_fh; struct v4l2_subdev; +struct v4l2_subdev_fh; struct tuner_setup; /* decode_vbi_line */ @@ -431,10 +432,16 @@ struct v4l2_subdev_ops { * * unregistered: called when this subdev is unregistered. When called the * v4l2_dev field is still set to the correct v4l2_device. + * + * open: called when the subdev device node is opened by an application. + * + * close: called when the subdev device node is closed. */ struct v4l2_subdev_internal_ops { int (*registered)(struct v4l2_subdev *sd); void (*unregistered)(struct v4l2_subdev *sd); + int (*open)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh); + int (*close)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh); }; #define V4L2_SUBDEV_NAME_SIZE 32 -- cgit v1.2.3