[media] media: doc-rst: document ENODATA for cropping ioctls

Document that the cropping ioctls can return ENODATA if the operation
isn't supported for the current input or output.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/Documentation/media/uapi/v4l/vidioc-cropcap.rst b/Documentation/media/uapi/v4l/vidioc-cropcap.rst
index b41fdd6..9b7c99e 100644 (file)
--- a/Documentation/media/uapi/v4l/vidioc-cropcap.rst
+++ b/Documentation/media/uapi/v4l/vidioc-cropcap.rst
@@ -167,3 +167,6 @@ appropriately. The generic error codes are described at the
 EINVAL
     The struct :ref:`v4l2_cropcap <v4l2-cropcap>` ``type`` is
     invalid.
+
+ENODATA
+    Cropping is not supported for this input or output.

diff --git a/Documentation/media/uapi/v4l/vidioc-g-crop.rst b/Documentation/media/uapi/v4l/vidioc-g-crop.rst
index d4b0607..1689b0c 100644 (file)
--- a/Documentation/media/uapi/v4l/vidioc-g-crop.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-crop.rst
@@ -112,3 +112,6 @@ Return Value
 On success 0 is returned, on error -1 and the ``errno`` variable is set
 appropriately. The generic error codes are described at the
 :ref:`Generic Error Codes <gen-errors>` chapter.
+
+ENODATA
+    Cropping is not supported for this input or output.

diff --git a/Documentation/media/uapi/v4l/vidioc-g-selection.rst b/Documentation/media/uapi/v4l/vidioc-g-selection.rst
index 34be085..85b5afa 100644 (file)
--- a/Documentation/media/uapi/v4l/vidioc-g-selection.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-selection.rst
@@ -211,6 +211,9 @@ ERANGE
     ``r`` rectangle to satisfy all constraints given in the ``flags``
     argument.
 
+ENODATA
+    Selection is not supported for this input or output.
+
 EBUSY
     It is not possible to apply change of the selection rectangle at the
     moment. Usually because streaming is in progress.