[PATCH v4 13/36] [media] v4l2: add a frame timeout event
From: slongerbeam@gmail.com (Steve Longerbeam)
Date: 2017-02-16 02:20:46
Also in:
linux-devicetree, linux-media, lkml
Subsystem:
documentation, media input infrastructure (v4l/dvb), the rest · Maintainers:
Jonathan Corbet, Mauro Carvalho Chehab, Linus Torvalds
Add a new FRAME_TIMEOUT event to signal that a video capture or output device has timed out waiting for reception or transmit completion of a video frame. Signed-off-by: Steve Longerbeam <redacted> --- Documentation/media/uapi/v4l/vidioc-dqevent.rst | 5 +++++ Documentation/media/videodev2.h.rst.exceptions | 1 + include/uapi/linux/videodev2.h | 1 + 3 files changed, 7 insertions(+)
diff --git a/Documentation/media/uapi/v4l/vidioc-dqevent.rst b/Documentation/media/uapi/v4l/vidioc-dqevent.rst
index 8d663a7..dd77d9b 100644
--- a/Documentation/media/uapi/v4l/vidioc-dqevent.rst
+++ b/Documentation/media/uapi/v4l/vidioc-dqevent.rst@@ -197,6 +197,11 @@ call. the regions changes. This event has a struct :c:type:`v4l2_event_motion_det` associated with it. + * - ``V4L2_EVENT_FRAME_TIMEOUT`` + - 7 + - This event is triggered when the video capture or output device + has timed out waiting for the reception or transmit completion of + a frame of video. * - ``V4L2_EVENT_PRIVATE_START`` - 0x08000000 - Base event number for driver-private events.
diff --git a/Documentation/media/videodev2.h.rst.exceptions b/Documentation/media/videodev2.h.rst.exceptions
index e11a0d0..5b0f767 100644
--- a/Documentation/media/videodev2.h.rst.exceptions
+++ b/Documentation/media/videodev2.h.rst.exceptions@@ -459,6 +459,7 @@ replace define V4L2_EVENT_CTRL event-type replace define V4L2_EVENT_FRAME_SYNC event-type replace define V4L2_EVENT_SOURCE_CHANGE event-type replace define V4L2_EVENT_MOTION_DET event-type +replace define V4L2_EVENT_FRAME_TIMEOUT event-type replace define V4L2_EVENT_PRIVATE_START event-type replace define V4L2_EVENT_CTRL_CH_VALUE ctrl-changes-flags
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 46e8a2e3..e174c45 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h@@ -2132,6 +2132,7 @@ struct v4l2_streamparm { #define V4L2_EVENT_FRAME_SYNC 4 #define V4L2_EVENT_SOURCE_CHANGE 5 #define V4L2_EVENT_MOTION_DET 6 +#define V4L2_EVENT_FRAME_TIMEOUT 7 #define V4L2_EVENT_PRIVATE_START 0x08000000 /* Payload for V4L2_EVENT_VSYNC */
--
2.7.4