From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: hverkuil@xs4all.nl
Subject: [PATCH 1/1] docs-rst: Document EBUSY for VIDIOC_S_FMT
Date: Mon, 26 Jun 2017 12:26:24 +0300 [thread overview]
Message-ID: <1498469184-13280-1-git-send-email-sakari.ailus@linux.intel.com> (raw)
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>
---
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
next reply other threads:[~2017-06-26 9:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-26 9:26 Sakari Ailus [this message]
2017-06-26 9:35 ` [PATCH 1/1] docs-rst: Document EBUSY for VIDIOC_S_FMT Hans Verkuil
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