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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>
hifive-unleashed-5.1
Sakari Ailus 2017-06-26 06:26:24 -03:00 committed by Mauro Carvalho Chehab
parent f91df2e4fc
commit 4ee92289c2
1 changed files with 6 additions and 0 deletions
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Documentation/media/uapi/v4l/vidioc-g-fmt.rst
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@ -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.