From 1a99b972a86ba9c3984c042f7f641458ad4812d0 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 9 Sep 2011 13:10:02 -0300 Subject: [media] V4L: add .g_std() core V4L2 subdevice operation VIDIOC_G_STD can return the current TV-norm to the user in one of two ways: if an .vidioc_g_std() ioctl operation is provided by the driver, it is called, otherwise the value ot the .current_norm field of struct video_device is returned. Since subdevice drivers currently have no access to struct video_device objects, the only way to provide this information to the user is by implementing a .g_std() method. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 5dd049a..f0f3358 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -158,6 +158,7 @@ struct v4l2_subdev_core_ops { int (*s_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls); int (*try_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls); int (*querymenu)(struct v4l2_subdev *sd, struct v4l2_querymenu *qm); + int (*g_std)(struct v4l2_subdev *sd, v4l2_std_id *norm); int (*s_std)(struct v4l2_subdev *sd, v4l2_std_id norm); long (*ioctl)(struct v4l2_subdev *sd, unsigned int cmd, void *arg); #ifdef CONFIG_VIDEO_ADV_DEBUG -- cgit v0.10.2