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-querybuf.xml | 106 --------------------- 1 file changed, 106 deletions(-) delete mode 100644 Documentation/DocBook/media/v4l/vidioc-querybuf.xml (limited to 'Documentation/DocBook/media/v4l/vidioc-querybuf.xml') diff --git a/Documentation/DocBook/media/v4l/vidioc-querybuf.xml b/Documentation/DocBook/media/v4l/vidioc-querybuf.xml deleted file mode 100644 index 50bfcb5e8..000000000 --- a/Documentation/DocBook/media/v4l/vidioc-querybuf.xml +++ /dev/null @@ -1,106 +0,0 @@ - - - ioctl VIDIOC_QUERYBUF - &manvol; - - - - VIDIOC_QUERYBUF - Query the status of a buffer - - - - - - int ioctl - int fd - int request - struct v4l2_buffer *argp - - - - - - Arguments - - - - fd - - &fd; - - - - request - - VIDIOC_QUERYBUF - - - - argp - - - - - - - - - Description - - This ioctl is part of the streaming - I/O method. It can be used to query the status of a -buffer at any time after buffers have been allocated with the -&VIDIOC-REQBUFS; ioctl. - - Applications set the type field - of a &v4l2-buffer; to the same buffer type as was previously used with -&v4l2-format; type and &v4l2-requestbuffers; -type, and the index - field. Valid index numbers range from zero -to the number of buffers allocated with &VIDIOC-REQBUFS; - (&v4l2-requestbuffers; count) minus one. -The reserved and reserved2 -fields must be set to 0. -When using the multi-planar API, the -m.planes field must contain a userspace pointer to an -array of &v4l2-plane; and the length field has -to be set to the number of elements in that array. -After calling VIDIOC_QUERYBUF with a pointer to - this structure drivers return an error code or fill the rest of -the structure. - - In the flags field the -V4L2_BUF_FLAG_MAPPED, -V4L2_BUF_FLAG_PREPARED, -V4L2_BUF_FLAG_QUEUED and -V4L2_BUF_FLAG_DONE flags will be valid. The -memory field will be set to the current -I/O method. For the single-planar API, the m.offset -contains the offset of the buffer from the start of the device memory, -the length field its size. For the multi-planar API, -fields m.mem_offset and -length in the m.planes -array elements will be used instead and the length -field of &v4l2-buffer; is set to the number of filled-in array elements. -The driver may or may not set the remaining fields and flags, they are -meaningless in this context. - - The v4l2_buffer structure is - specified in . - - - - &return-value; - - - - EINVAL - - The buffer type is not -supported, or the index is out of bounds. - - - - - -- cgit v1.2.3