[media] v4l: Add VIDIOC_LOG_STATUS support for sub-device nodes
The VIDIOC_LOG_STATUS ioctl allows to dump the current status of a driver
to the kernel log. Currently this ioctl is only available at video device
nodes and the subdevs rely on the host driver to expose their core.log_status
operation to user space.
This patch adds VIDIOC_LOG_STATUS support at the sub-device nodes,
for standalone subdevs that expose their own /dev entry.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c
index 65ade5f..41d118e 100644
--- a/drivers/media/video/v4l2-subdev.c
+++ b/drivers/media/video/v4l2-subdev.c
@@ -193,6 +193,10 @@
return v4l2_subdev_call(sd, core, s_register, p);
}
#endif
+
+ case VIDIOC_LOG_STATUS:
+ return v4l2_subdev_call(sd, core, log_status);
+
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
case VIDIOC_SUBDEV_G_FMT: {
struct v4l2_subdev_format *format = arg;