Searched refs:VIDIOC_REQBUFS (Results 1 – 24 of 24) sorted by relevance
| /Linux-v4.19/Documentation/media/uapi/v4l/ |
| D | dmabuf.rst | 25 determined by calling the :ref:`VIDIOC_REQBUFS <VIDIOC_REQBUFS>`
37 :ref:`VIDIOC_REQBUFS <VIDIOC_REQBUFS>` with the desired buffer type.
52 if (ioctl(fd, VIDIOC_REQBUFS, &reqbuf) == -1) {
56 perror("VIDIOC_REQBUFS");
126 :ref:`VIDIOC_REQBUFS <VIDIOC_REQBUFS>`, or when the device is closed.
158 :ref:`VIDIOC_REQBUFS <VIDIOC_REQBUFS>`, :ref:`VIDIOC_QBUF <VIDIOC_QBUF>`,
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| D | vidioc-reqbufs.rst | 6 ioctl VIDIOC_REQBUFS
12 VIDIOC_REQBUFS - Initiate Memory Mapping, User Pointer I/O or DMA buffer I/O
18 .. c:function:: int ioctl( int fd, VIDIOC_REQBUFS, struct v4l2_requestbuffers *argp )
19 :name: VIDIOC_REQBUFS
61 Applications can call :ref:`VIDIOC_REQBUFS` again to change the number of
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| D | userp.rst | 14 must be determined by calling the :ref:`VIDIOC_REQBUFS` ioctl
24 :ref:`VIDIOC_REQBUFS` with the desired buffer type.
40 if (ioctl (fd, VIDIOC_REQBUFS, &reqbuf) == -1) {
44 perror ("VIDIOC_REQBUFS");
64 :ref:`VIDIOC_REQBUFS`, or when the device is closed.
101 :ref:`VIDIOC_REQBUFS <VIDIOC_REQBUFS>`, :ref:`VIDIOC_QBUF <VIDIOC_QBUF>`,
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| D | mmap.rst | 14 supported applications must call the :ref:`VIDIOC_REQBUFS` ioctl
32 :ref:`VIDIOC_REQBUFS` ioctl with the desired number
72 if (-1 == ioctl (fd, VIDIOC_REQBUFS, &reqbuf)) {
76 perror("VIDIOC_REQBUFS");
146 if (ioctl(fd, VIDIOC_REQBUFS, &reqbuf) < 0) {
150 perror("VIDIOC_REQBUFS");
258 :ref:`VIDIOC_REQBUFS <VIDIOC_REQBUFS>`, :ref:`VIDIOC_QUERYBUF
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| D | io.rst | 19 :ref:`VIDIOC_REQBUFS` ioctl. The asynchronous I/O
34 :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` and :ref:`VIDIOC_REQBUFS` would permit this to some
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| D | vidioc-expbuf.rst | 39 :ref:`VIDIOC_REQBUFS` ioctl.
47 :ref:`VIDIOC_REQBUFS` (struct
138 :ref:`VIDIOC_REQBUFS` and/or
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| D | planar-apis.rst | 60 :ref:`VIDIOC_REQBUFS <VIDIOC_REQBUFS>`
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| D | vidioc-querybuf.rst | 37 been allocated with the :ref:`VIDIOC_REQBUFS` ioctl.
45 :ref:`VIDIOC_REQBUFS` (struct
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| D | vidioc-streamon.rst | 60 :ref:`VIDIOC_REQBUFS` and can be restarted
67 calling :ref:`VIDIOC_REQBUFS` and can be restarted
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| D | vidioc-qbuf.rst | 48 :ref:`VIDIOC_REQBUFS` (struct
82 :ref:`VIDIOC_REQBUFS` ioctl is called, or until the
98 :ref:`VIDIOC_REQBUFS` ioctl is called, or until the
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| D | capture.c.rst | 333 if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) {
339 errno_exit("VIDIOC_REQBUFS");
391 if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) {
397 errno_exit("VIDIOC_REQBUFS");
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| D | func-mmap.rst | 111 allocated with the :ref:`VIDIOC_REQBUFS` ioctl
137 :ref:`VIDIOC_REQBUFS` ioctl.
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| D | buffer.rst | 84 and free all buffers with the :c:func:`VIDIOC_REQBUFS` ioctl if they are
91 #. VIDIOC_REQBUFS(0)
94 #. VIDIOC_REQBUFS(n)
98 The second :c:func:`VIDIOC_REQBUFS` call will take the new format and control
176 allocated with the :ref:`VIDIOC_REQBUFS` ioctl
298 :ref:`VIDIOC_REQBUFS` and/or
349 :ref:`VIDIOC_REQBUFS` and/or
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| D | v4l2grab.c.rst | 94 xioctl(fd, VIDIOC_REQBUFS, &req);
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| D | vidioc-create-bufs.rst | 38 :ref:`VIDIOC_REQBUFS` ioctl, when a tighter control
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| D | format.rst | 55 with the :ref:`VIDIOC_REQBUFS` ioctl or implicit
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| D | open.rst | 110 streaming data (by calling the :ref:`VIDIOC_REQBUFS`
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| D | diff-v4l.rst | 546 - The :ref:`VIDIOC_REQBUFS` ioctl allocates the
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| /Linux-v4.19/drivers/media/v4l2-core/ |
| D | v4l2-dev.c | 674 SET_VALID_IOCTL(ops, VIDIOC_REQBUFS, vidioc_reqbufs); in determine_valid_ioctls()
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| D | v4l2-ioctl.c | 2592 IOCTL_INFO(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2689 case VIDIOC_REQBUFS: { in v4l2_ioctl_m2m_queue_is_output()
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| /Linux-v4.19/Documentation/media/kapi/ |
| D | v4l2-dev.rst | 71 is used for the queuing ioctls (``VIDIOC_REQBUFS``, ``CREATE_BUFS``,
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| D | v4l2-videobuf.rst | 290 So, for example, a VIDIOC_REQBUFS call turns into a call to the driver's
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| /Linux-v4.19/include/uapi/linux/ |
| D | videodev2.h | 2323 #define VIDIOC_REQBUFS _IOWR('V', 8, struct v4l2_requestbuffers) macro
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| /Linux-v4.19/Documentation/media/v4l-drivers/ |
| D | vivid.rst | 881 - Inject VIDIOC_REQBUFS Error:
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