From 670027c507e99521d416994a18a498def9ef2ea3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Sat, 22 Oct 2016 19:31:08 -0300 Subject: Linux-libre 4.8.3-gnu --- .../DocBook/media/v4l/vidioc-querystd.xml | 85 ---------------------- 1 file changed, 85 deletions(-) delete mode 100644 Documentation/DocBook/media/v4l/vidioc-querystd.xml (limited to 'Documentation/DocBook/media/v4l/vidioc-querystd.xml') diff --git a/Documentation/DocBook/media/v4l/vidioc-querystd.xml b/Documentation/DocBook/media/v4l/vidioc-querystd.xml deleted file mode 100644 index 3ceae35fa..000000000 --- a/Documentation/DocBook/media/v4l/vidioc-querystd.xml +++ /dev/null @@ -1,85 +0,0 @@ - - - ioctl VIDIOC_QUERYSTD - &manvol; - - - - VIDIOC_QUERYSTD - Sense the video standard received by the current -input - - - - - - int ioctl - int fd - int request - v4l2_std_id *argp - - - - - - Arguments - - - - fd - - &fd; - - - - request - - VIDIOC_QUERYSTD - - - - argp - - - - - - - - - Description - - The hardware may be able to detect the current video -standard automatically. To do so, applications call -VIDIOC_QUERYSTD with a pointer to a &v4l2-std-id; type. The -driver stores here a set of candidates, this can be a single flag or a -set of supported standards if for example the hardware can only -distinguish between 50 and 60 Hz systems. If no signal was detected, -then the driver will return V4L2_STD_UNKNOWN. When detection is not -possible or fails, the set must contain all standards supported by the -current video input or output. - -Please note that drivers shall not switch the video standard -automatically if a new video standard is detected. Instead, drivers should send the -V4L2_EVENT_SOURCE_CHANGE event (if they support this) and expect -that userspace will take action by calling VIDIOC_QUERYSTD. -The reason is that a new video standard can mean different buffer sizes as well, and you -cannot change buffer sizes on the fly. In general, applications that receive the -Source Change event will have to call VIDIOC_QUERYSTD, -and if the detected video standard is valid they will have to stop streaming, set the new -standard, allocate new buffers and start streaming again. - - - - - &return-value; - - - ENODATA - - Standard video timings are not supported for this input or output. - - - - - -- cgit v1.2.3