From 4ee92289c269dfe91e0e3858399c244dc92fa20e Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Mon, 26 Jun 2017 06:26:24 -0300
Subject: [PATCH] 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>
---
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 b853e48312e2b..d082f9a215481 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.
--
2.30.2