VIDIOC_S_FMT may return EBUSY if the device is streaming or there are buffers allocated. Document this.
Signed-off-by: Sakari Ailus <[email protected]> --- Documentation/media/uapi/v4l/vidioc-g-fmt.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/media/uapi/v4l/vidioc-g-fmt.rst b/Documentation/media/uapi/v4l/vidioc-g-fmt.rst index b853e48..d082f9a 100644 --- a/Documentation/media/uapi/v4l/vidioc-g-fmt.rst +++ b/Documentation/media/uapi/v4l/vidioc-g-fmt.rst @@ -147,3 +147,9 @@ appropriately. The generic error codes are described at the EINVAL The struct :c:type:`v4l2_format` ``type`` field is invalid or the requested buffer type not supported. + +EBUSY + The device is busy and cannot change the format. This could be + because or the device is streaming or buffers are allocated or + queued to the driver. Relevant for :ref:`VIDIOC_S_FMT + <VIDIOC_G_FMT>` only. -- 2.1.4
