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Diffstat (limited to 'Documentation/media/uapi/v4l/dev-osd.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/dev-osd.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/media/uapi/v4l/dev-osd.rst b/Documentation/media/uapi/v4l/dev-osd.rst index fadda131f020..4e1ee79ec334 100644 --- a/Documentation/media/uapi/v4l/dev-osd.rst +++ b/Documentation/media/uapi/v4l/dev-osd.rst @@ -16,7 +16,9 @@ this interface, which borrows structures and ioctls of the The OSD function is accessible through the same character special file as the :ref:`Video Output <capture>` function. -.. note:: The default function of such a ``/dev/video`` device is video +.. note:: + + The default function of such a ``/dev/video`` device is video capturing or output. The OSD function is only available after calling the :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ioctl. |