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| author |   Sakari Ailus <sakari.ailus@linux.intel.com> | 2017-06-26 06:26:24 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-26 07:57:09 -0300 |
| commit | 4ee92289c269dfe91e0e3858399c244dc92fa20e (patch) | |
| tree | 477ce04f9492f333545d817afeebfd303d78c706 /Documentation/media | |
| parent | media: dtv-core.rst: complete description of a demod driver (diff) | |
| download | linux-dev-4ee92289c269dfe91e0e3858399c244dc92fa20e.tar.xz linux-dev-4ee92289c269dfe91e0e3858399c244dc92fa20e.zip | |
media: docs-rst: Document EBUSY for VIDIOC_S_FMT
VIDIOC_S_FMT may return EBUSY if the device is streaming or there are
buffers allocated. Document this.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media')
| -rw-r--r-- | Documentation/media/uapi/v4l/vidioc-g-fmt.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/vidioc-g-fmt.rst b/Documentation/media/uapi/v4l/vidioc-g-fmt.rst index b853e48312e2..d082f9a21548 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. |