Documentation/DocBook/media/v4l/v4l2.xml

   1  <partinfo>
   2     <authorgroup>
   3       <author>
   4         <firstname>Michael</firstname>
   5         <surname>Schimek</surname>
   6         <othername role="mi">H</othername>
   7         <affiliation>
   8           <address>
   9             <email>mschimek@gmx.at</email>
  10           </address>
  11         </affiliation>
  12       </author>
  13
  14       <author>
  15         <firstname>Bill</firstname>
  16         <surname>Dirks</surname>
  17         <!-- Commented until Bill opts in to be spammed.
  18         <affiliation>
  19           <address>
  20             <email>bill@thedirks.org</email>
  21           </address>
  22         </affiliation> -->
  23         <contrib>Original author of the V4L2 API and
  24 documentation.</contrib>
  25       </author>
  26
  27       <author>
  28         <firstname>Hans</firstname>
  29         <surname>Verkuil</surname>
  30         <contrib>Designed and documented the VIDIOC_LOG_STATUS ioctl,
  31 the extended control ioctls, major parts of the sliced VBI API, the
  32 MPEG encoder and decoder APIs and the DV Timings API.</contrib>
  33         <affiliation>
  34           <address>
  35             <email>hverkuil@xs4all.nl</email>
  36           </address>
  37         </affiliation>
  38       </author>
  39
  40       <author>
  41         <firstname>Martin</firstname>
  42         <surname>Rubli</surname>
  43         <!--
  44         <affiliation>
  45           <address>
  46             <email>martin_rubli@logitech.com</email>
  47           </address>
  48         </affiliation> -->
  49         <contrib>Designed and documented the VIDIOC_ENUM_FRAMESIZES
  50 and VIDIOC_ENUM_FRAMEINTERVALS ioctls.</contrib>
  51       </author>
  52
  53       <author>
  54         <firstname>Andy</firstname>
  55         <surname>Walls</surname>
  56         <contrib>Documented the fielded V4L2_MPEG_STREAM_VBI_FMT_IVTV
  57 MPEG stream embedded, sliced VBI data format in this specification.
  58 </contrib>
  59         <affiliation>
  60           <address>
  61             <email>awalls@md.metrocast.net</email>
  62           </address>
  63         </affiliation>
  64       </author>
  65
  66       <author>
  67         <firstname>Mauro</firstname>
  68         <surname>Carvalho Chehab</surname>
  69         <contrib>Documented libv4l, designed and added v4l2grab example,
  70 Remote Controller chapter.</contrib>
  71         <affiliation>
  72           <address>
  73             <email>m.chehab@samsung.com</email>
  74           </address>
  75         </affiliation>
  76       </author>
  77
  78       <author>
  79         <firstname>Muralidharan</firstname>
  80         <surname>Karicheri</surname>
  81         <contrib>Documented the Digital Video timings API.</contrib>
  82         <affiliation>
  83           <address>
  84             <email>m-karicheri2@ti.com</email>
  85           </address>
  86         </affiliation>
  87       </author>
  88
  89       <author>
  90         <firstname>Pawel</firstname>
  91         <surname>Osciak</surname>
  92         <contrib>Designed and documented the multi-planar API.</contrib>
  93         <affiliation>
  94           <address>
  95             <email>pawel AT osciak.com</email>
  96           </address>
  97         </affiliation>
  98       </author>
  99
 100       <author>
 101         <firstname>Sakari</firstname>
 102         <surname>Ailus</surname>
 103         <contrib>Subdev selections API.</contrib>
 104         <affiliation>
 105           <address>
 106             <email>sakari.ailus@iki.fi</email>
 107           </address>
 108         </affiliation>
 109       </author>
 110       <author>
 111         <firstname>Antti</firstname>
 112         <surname>Palosaari</surname>
 113         <contrib>SDR API.</contrib>
 114         <affiliation>
 115           <address>
 116             <email>crope@iki.fi</email>
 117           </address>
 118         </affiliation>
 119       </author>
 120     </authorgroup>
 121
 122     <copyright>
 123       <year>1999</year>
 124       <year>2000</year>
 125       <year>2001</year>
 126       <year>2002</year>
 127       <year>2003</year>
 128       <year>2004</year>
 129       <year>2005</year>
 130       <year>2006</year>
 131       <year>2007</year>
 132       <year>2008</year>
 133       <year>2009</year>
 134       <year>2010</year>
 135       <year>2011</year>
 136       <year>2012</year>
 137       <year>2013</year>
 138       <year>2014</year>
 139       <holder>Bill Dirks, Michael H. Schimek, Hans Verkuil, Martin
 140 Rubli, Andy Walls, Muralidharan Karicheri, Mauro Carvalho Chehab,
 141         Pawel Osciak</holder>
 142     </copyright>
 143     <legalnotice>
 144     <para>Except when explicitly stated as GPL, programming examples within
 145             this part can be used and distributed without restrictions.</para>
 146     </legalnotice>
 147     <revhistory>
 148       <!-- Put document revisions here, newest first. -->
 149       <!-- API revisions (changes and additions of defines, enums,
 150 structs, ioctls) must be noted in more detail in the history chapter
 151 (compat.xml), along with the possible impact on existing drivers and
 152 applications. -->
 153
 154       <revision>
 155         <revnumber>3.17</revnumber>
 156         <date>2014-08-04</date>
 157         <authorinitials>lp, hv</authorinitials>
 158         <revremark>Extended &v4l2-pix-format;. Added format flags. Added compound control types
 159 and VIDIOC_QUERY_EXT_CTRL.
 160         </revremark>
 161       </revision>
 162
 163       <revision>
 164         <revnumber>3.15</revnumber>
 165         <date>2014-02-03</date>
 166         <authorinitials>hv, ap</authorinitials>
 167         <revremark>Update several sections of "Common API Elements": "Opening and Closing Devices"
 168 "Querying Capabilities", "Application Priority", "Video Inputs and Outputs", "Audio Inputs and Outputs"
 169 "Tuners and Modulators", "Video Standards" and "Digital Video (DV) Timings". Added SDR API.
 170         </revremark>
 171       </revision>
 172
 173       <revision>
 174         <revnumber>3.14</revnumber>
 175         <date>2013-11-25</date>
 176         <authorinitials>rr</authorinitials>
 177         <revremark>Set width and height as unsigned on v4l2_rect.
 178         </revremark>
 179       </revision>
 180
 181       <revision>
 182         <revnumber>3.11</revnumber>
 183         <date>2013-05-26</date>
 184         <authorinitials>hv</authorinitials>
 185         <revremark>Remove obsolete VIDIOC_DBG_G_CHIP_IDENT ioctl.
 186         </revremark>
 187       </revision>
 188
 189       <revision>
 190         <revnumber>3.10</revnumber>
 191         <date>2013-03-25</date>
 192         <authorinitials>hv</authorinitials>
 193         <revremark>Remove obsolete and unused DV_PRESET ioctls:
 194         VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET, VIDIOC_QUERY_DV_PRESET and
 195         VIDIOC_ENUM_DV_PRESET. Remove the related v4l2_input/output capability
 196         flags V4L2_IN_CAP_PRESETS and V4L2_OUT_CAP_PRESETS. Added VIDIOC_DBG_G_CHIP_INFO.
 197         </revremark>
 198       </revision>
 199
 200       <revision>
 201         <revnumber>3.9</revnumber>
 202         <date>2012-12-03</date>
 203         <authorinitials>sa, sn</authorinitials>
 204         <revremark>Added timestamp types to v4l2_buffer.
 205         Added V4L2_EVENT_CTRL_CH_RANGE control event changes flag.
 206         </revremark>
 207       </revision>
 208
 209       <revision>
 210         <revnumber>3.6</revnumber>
 211         <date>2012-07-02</date>
 212         <authorinitials>hv</authorinitials>
 213         <revremark>Added VIDIOC_ENUM_FREQ_BANDS.
 214         </revremark>
 215       </revision>
 216
 217       <revision>
 218         <revnumber>3.5</revnumber>
 219         <date>2012-05-07</date>
 220         <authorinitials>sa, sn, hv</authorinitials>
 221         <revremark>Added V4L2_CTRL_TYPE_INTEGER_MENU and V4L2 subdev
 222             selections API. Improved the description of V4L2_CID_COLORFX
 223             control, added V4L2_CID_COLORFX_CBCR control.
 224             Added camera controls V4L2_CID_AUTO_EXPOSURE_BIAS,
 225             V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE, V4L2_CID_IMAGE_STABILIZATION,
 226             V4L2_CID_ISO_SENSITIVITY, V4L2_CID_ISO_SENSITIVITY_AUTO,
 227             V4L2_CID_EXPOSURE_METERING, V4L2_CID_SCENE_MODE,
 228             V4L2_CID_3A_LOCK, V4L2_CID_AUTO_FOCUS_START,
 229             V4L2_CID_AUTO_FOCUS_STOP, V4L2_CID_AUTO_FOCUS_STATUS
 230             and V4L2_CID_AUTO_FOCUS_RANGE.
 231             Added VIDIOC_ENUM_DV_TIMINGS, VIDIOC_QUERY_DV_TIMINGS and
 232             VIDIOC_DV_TIMINGS_CAP.
 233         </revremark>
 234       </revision>
 235
 236       <revision>
 237         <revnumber>3.4</revnumber>
 238         <date>2012-01-25</date>
 239         <authorinitials>sn</authorinitials>
 240         <revremark>Added <link linkend="jpeg-controls">JPEG compression
 241             control class.</link>
 242         </revremark>
 243       </revision>
 244
 245       <revision>
 246         <revnumber>3.3</revnumber>
 247         <date>2012-01-11</date>
 248         <authorinitials>hv</authorinitials>
 249         <revremark>Added device_caps field to struct v4l2_capabilities.</revremark>
 250       </revision>
 251
 252       <revision>
 253         <revnumber>3.2</revnumber>
 254         <date>2011-08-26</date>
 255         <authorinitials>hv</authorinitials>
 256         <revremark>Added V4L2_CTRL_FLAG_VOLATILE.</revremark>
 257       </revision>
 258
 259       <revision>
 260         <revnumber>3.1</revnumber>
 261         <date>2011-06-27</date>
 262         <authorinitials>mcc, po, hv</authorinitials>
 263         <revremark>Documented that VIDIOC_QUERYCAP now returns a per-subsystem version instead of a per-driver one.
 264                    Standardize an error code for invalid ioctl.
 265                    Added V4L2_CTRL_TYPE_BITMASK.</revremark>
 266       </revision>
 267
 268       <revision>
 269         <revnumber>2.6.39</revnumber>
 270         <date>2011-03-01</date>
 271         <authorinitials>mcc, po</authorinitials>
 272         <revremark>Removed VIDIOC_*_OLD from videodev2.h header and update it to reflect latest changes. Added the <link linkend="planar-apis">multi-planar API</link>.</revremark>
 273       </revision>
 274
 275       <revision>
 276         <revnumber>2.6.37</revnumber>
 277         <date>2010-08-06</date>
 278         <authorinitials>hv</authorinitials>
 279         <revremark>Removed obsolete vtx (videotext) API.</revremark>
 280       </revision>
 281
 282       <revision>
 283         <revnumber>2.6.33</revnumber>
 284         <date>2009-12-03</date>
 285         <authorinitials>mk</authorinitials>
 286         <revremark>Added documentation for the Digital Video timings API.</revremark>
 287       </revision>
 288
 289       <revision>
 290         <revnumber>2.6.32</revnumber>
 291         <date>2009-08-31</date>
 292         <authorinitials>mcc</authorinitials>
 293         <revremark>Now, revisions will match the kernel version where
 294 the V4L2 API changes will be used by the Linux Kernel.
 295 Also added Remote Controller chapter.</revremark>
 296       </revision>
 297
 298       <revision>
 299         <revnumber>0.29</revnumber>
 300         <date>2009-08-26</date>
 301         <authorinitials>ev</authorinitials>
 302         <revremark>Added documentation for string controls and for FM Transmitter controls.</revremark>
 303       </revision>
 304
 305       <revision>
 306         <revnumber>0.28</revnumber>
 307         <date>2009-08-26</date>
 308         <authorinitials>gl</authorinitials>
 309         <revremark>Added V4L2_CID_BAND_STOP_FILTER documentation.</revremark>
 310       </revision>
 311
 312       <revision>
 313         <revnumber>0.27</revnumber>
 314         <date>2009-08-15</date>
 315         <authorinitials>mcc</authorinitials>
 316         <revremark>Added libv4l and Remote Controller documentation;
 317 added v4l2grab and keytable application examples.</revremark>
 318       </revision>
 319
 320       <revision>
 321         <revnumber>0.26</revnumber>
 322         <date>2009-07-23</date>
 323         <authorinitials>hv</authorinitials>
 324         <revremark>Finalized the RDS capture API. Added modulator and RDS encoder
 325 capabilities. Added support for string controls.</revremark>
 326       </revision>
 327
 328       <revision>
 329         <revnumber>0.25</revnumber>
 330         <date>2009-01-18</date>
 331         <authorinitials>hv</authorinitials>
 332         <revremark>Added pixel formats VYUY, NV16 and NV61, and changed
 333 the debug ioctls VIDIOC_DBG_G/S_REGISTER and VIDIOC_DBG_G_CHIP_IDENT.
 334 Added camera controls V4L2_CID_ZOOM_ABSOLUTE, V4L2_CID_ZOOM_RELATIVE,
 335 V4L2_CID_ZOOM_CONTINUOUS and V4L2_CID_PRIVACY.</revremark>
 336       </revision>
 337
 338       <revision>
 339         <revnumber>0.24</revnumber>
 340         <date>2008-03-04</date>
 341         <authorinitials>mhs</authorinitials>
 342         <revremark>Added pixel formats Y16 and SBGGR16, new controls
 343 and a camera controls class. Removed VIDIOC_G/S_MPEGCOMP.</revremark>
 344       </revision>
 345
 346       <revision>
 347         <revnumber>0.23</revnumber>
 348         <date>2007-08-30</date>
 349         <authorinitials>mhs</authorinitials>
 350         <revremark>Fixed a typo in VIDIOC_DBG_G/S_REGISTER.
 351 Clarified the byte order of packed pixel formats.</revremark>
 352       </revision>
 353
 354       <revision>
 355         <revnumber>0.22</revnumber>
 356         <date>2007-08-29</date>
 357         <authorinitials>mhs</authorinitials>
 358         <revremark>Added the Video Output Overlay interface, new MPEG
 359 controls, V4L2_FIELD_INTERLACED_TB and V4L2_FIELD_INTERLACED_BT,
 360 VIDIOC_DBG_G/S_REGISTER, VIDIOC_(TRY_)ENCODER_CMD,
 361 VIDIOC_G_CHIP_IDENT, VIDIOC_G_ENC_INDEX, new pixel formats.
 362 Clarifications in the cropping chapter, about RGB pixel formats, the
 363 mmap(), poll(), select(), read() and write() functions. Typographical
 364 fixes.</revremark>
 365       </revision>
 366
 367       <revision>
 368         <revnumber>0.21</revnumber>
 369         <date>2006-12-19</date>
 370         <authorinitials>mhs</authorinitials>
 371         <revremark>Fixed a link in the VIDIOC_G_EXT_CTRLS section.</revremark>
 372       </revision>
 373
 374       <revision>
 375         <revnumber>0.20</revnumber>
 376         <date>2006-11-24</date>
 377         <authorinitials>mhs</authorinitials>
 378         <revremark>Clarified the purpose of the audioset field in
 379 struct v4l2_input and v4l2_output.</revremark>
 380       </revision>
 381
 382       <revision>
 383         <revnumber>0.19</revnumber>
 384         <date>2006-10-19</date>
 385         <authorinitials>mhs</authorinitials>
 386         <revremark>Documented V4L2_PIX_FMT_RGB444.</revremark>
 387       </revision>
 388
 389       <revision>
 390         <revnumber>0.18</revnumber>
 391         <date>2006-10-18</date>
 392         <authorinitials>mhs</authorinitials>
 393         <revremark>Added the description of extended controls by Hans
 394 Verkuil. Linked V4L2_PIX_FMT_MPEG to V4L2_CID_MPEG_STREAM_TYPE.</revremark>
 395       </revision>
 396
 397       <revision>
 398         <revnumber>0.17</revnumber>
 399         <date>2006-10-12</date>
 400         <authorinitials>mhs</authorinitials>
 401         <revremark>Corrected V4L2_PIX_FMT_HM12 description.</revremark>
 402       </revision>
 403
 404       <revision>
 405         <revnumber>0.16</revnumber>
 406         <date>2006-10-08</date>
 407         <authorinitials>mhs</authorinitials>
 408         <revremark>VIDIOC_ENUM_FRAMESIZES and
 409 VIDIOC_ENUM_FRAMEINTERVALS are now part of the API.</revremark>
 410       </revision>
 411
 412       <revision>
 413         <revnumber>0.15</revnumber>
 414         <date>2006-09-23</date>
 415         <authorinitials>mhs</authorinitials>
 416         <revremark>Cleaned up the bibliography, added BT.653 and
 417 BT.1119. capture.c/start_capturing() for user pointer I/O did not
 418 initialize the buffer index. Documented the V4L MPEG and MJPEG
 419 VID_TYPEs and V4L2_PIX_FMT_SBGGR8. Updated the list of reserved pixel
 420 formats. See the history chapter for API changes.</revremark>
 421       </revision>
 422
 423       <revision>
 424         <revnumber>0.14</revnumber>
 425         <date>2006-09-14</date>
 426         <authorinitials>mr</authorinitials>
 427         <revremark>Added VIDIOC_ENUM_FRAMESIZES and
 428 VIDIOC_ENUM_FRAMEINTERVALS proposal for frame format enumeration of
 429 digital devices.</revremark>
 430       </revision>
 431
 432       <revision>
 433         <revnumber>0.13</revnumber>
 434         <date>2006-04-07</date>
 435         <authorinitials>mhs</authorinitials>
 436         <revremark>Corrected the description of struct v4l2_window
 437 clips. New V4L2_STD_ and V4L2_TUNER_MODE_LANG1_LANG2
 438 defines.</revremark>
 439       </revision>
 440
 441       <revision>
 442         <revnumber>0.12</revnumber>
 443         <date>2006-02-03</date>
 444         <authorinitials>mhs</authorinitials>
 445         <revremark>Corrected the description of struct
 446 v4l2_captureparm and v4l2_outputparm.</revremark>
 447       </revision>
 448
 449       <revision>
 450         <revnumber>0.11</revnumber>
 451         <date>2006-01-27</date>
 452         <authorinitials>mhs</authorinitials>
 453         <revremark>Improved the description of struct
 454 v4l2_tuner.</revremark>
 455       </revision>
 456
 457       <revision>
 458         <revnumber>0.10</revnumber>
 459         <date>2006-01-10</date>
 460         <authorinitials>mhs</authorinitials>
 461         <revremark>VIDIOC_G_INPUT and VIDIOC_S_PARM
 462 clarifications.</revremark>
 463       </revision>
 464
 465       <revision>
 466         <revnumber>0.9</revnumber>
 467         <date>2005-11-27</date>
 468         <authorinitials>mhs</authorinitials>
 469         <revremark>Improved the 525 line numbering diagram. Hans
 470 Verkuil and I rewrote the sliced VBI section. He also contributed a
 471 VIDIOC_LOG_STATUS page. Fixed VIDIOC_S_STD call in the video standard
 472 selection example. Various updates.</revremark>
 473       </revision>
 474
 475       <revision>
 476         <revnumber>0.8</revnumber>
 477         <date>2004-10-04</date>
 478         <authorinitials>mhs</authorinitials>
 479         <revremark>Somehow a piece of junk slipped into the capture
 480 example, removed.</revremark>
 481       </revision>
 482
 483       <revision>
 484         <revnumber>0.7</revnumber>
 485         <date>2004-09-19</date>
 486         <authorinitials>mhs</authorinitials>
 487         <revremark>Fixed video standard selection, control
 488 enumeration, downscaling and aspect example. Added read and user
 489 pointer i/o to video capture example.</revremark>
 490       </revision>
 491
 492       <revision>
 493         <revnumber>0.6</revnumber>
 494         <date>2004-08-01</date>
 495         <authorinitials>mhs</authorinitials>
 496         <revremark>v4l2_buffer changes, added video capture example,
 497 various corrections.</revremark>
 498       </revision>
 499
 500       <revision>
 501         <revnumber>0.5</revnumber>
 502         <date>2003-11-05</date>
 503         <authorinitials>mhs</authorinitials>
 504         <revremark>Pixel format erratum.</revremark>
 505       </revision>
 506
 507       <revision>
 508         <revnumber>0.4</revnumber>
 509         <date>2003-09-17</date>
 510         <authorinitials>mhs</authorinitials>
 511         <revremark>Corrected source and Makefile to generate a PDF.
 512 SGML fixes. Added latest API changes. Closed gaps in the history
 513 chapter.</revremark>
 514       </revision>
 515
 516       <revision>
 517         <revnumber>0.3</revnumber>
 518         <date>2003-02-05</date>
 519         <authorinitials>mhs</authorinitials>
 520         <revremark>Another draft, more corrections.</revremark>
 521       </revision>
 522
 523       <revision>
 524         <revnumber>0.2</revnumber>
 525         <date>2003-01-15</date>
 526         <authorinitials>mhs</authorinitials>
 527         <revremark>Second draft, with corrections pointed out by Gerd
 528 Knorr.</revremark>
 529       </revision>
 530
 531       <revision>
 532         <revnumber>0.1</revnumber>
 533         <date>2002-12-01</date>
 534         <authorinitials>mhs</authorinitials>
 535         <revremark>First draft, based on documentation by Bill Dirks
 536 and discussions on the V4L mailing list.</revremark>
 537       </revision>
 538     </revhistory>
 539 </partinfo>
 540
 541 <title>Video for Linux Two API Specification</title>
 542  <subtitle>Revision 3.17</subtitle>
 543
 544   <chapter id="common">
 545     &sub-common;
 546   </chapter>
 547
 548   <chapter id="pixfmt">
 549     &sub-pixfmt;
 550   </chapter>
 551
 552   <chapter id="io">
 553     &sub-io;
 554   </chapter>
 555
 556   <chapter id="devices">
 557     <title>Interfaces</title>
 558
 559     <section id="capture"> &sub-dev-capture; </section>
 560     <section id="overlay"> &sub-dev-overlay; </section>
 561     <section id="output"> &sub-dev-output; </section>
 562     <section id="osd"> &sub-dev-osd; </section>
 563     <section id="codec"> &sub-dev-codec; </section>
 564     <section id="effect"> &sub-dev-effect; </section>
 565     <section id="raw-vbi"> &sub-dev-raw-vbi; </section>
 566     <section id="sliced"> &sub-dev-sliced-vbi; </section>
 567     <section id="ttx"> &sub-dev-teletext; </section>
 568     <section id="radio"> &sub-dev-radio; </section>
 569     <section id="rds"> &sub-dev-rds; </section>
 570     <section id="sdr"> &sub-dev-sdr; </section>
 571     <section id="event"> &sub-dev-event; </section>
 572     <section id="subdev"> &sub-dev-subdev; </section>
 573   </chapter>
 574
 575   <chapter id="driver">
 576           &sub-driver;
 577   </chapter>
 578
 579   <chapter id="libv4l">
 580           &sub-libv4l;
 581   </chapter>
 582
 583   <chapter id="compat">
 584           &sub-compat;
 585   </chapter>
 586
 587   <appendix id="user-func">
 588   <title>Function Reference</title>
 589
 590     <!-- Keep this alphabetically sorted. -->
 591
 592     &sub-close;
 593     &sub-ioctl;
 594     <!-- All ioctls go here. -->
 595     &sub-create-bufs;
 596     &sub-cropcap;
 597     &sub-dbg-g-chip-info;
 598     &sub-dbg-g-register;
 599     &sub-decoder-cmd;
 600     &sub-dqevent;
 601     &sub-dv-timings-cap;
 602     &sub-encoder-cmd;
 603     &sub-enumaudio;
 604     &sub-enumaudioout;
 605     &sub-enum-dv-timings;
 606     &sub-enum-fmt;
 607     &sub-enum-framesizes;
 608     &sub-enum-frameintervals;
 609     &sub-enum-freq-bands;
 610     &sub-enuminput;
 611     &sub-enumoutput;
 612     &sub-enumstd;
 613     &sub-expbuf;
 614     &sub-g-audio;
 615     &sub-g-audioout;
 616     &sub-g-crop;
 617     &sub-g-ctrl;
 618     &sub-g-dv-timings;
 619     &sub-g-edid;
 620     &sub-g-enc-index;
 621     &sub-g-ext-ctrls;
 622     &sub-g-fbuf;
 623     &sub-g-fmt;
 624     &sub-g-frequency;
 625     &sub-g-input;
 626     &sub-g-jpegcomp;
 627     &sub-g-modulator;
 628     &sub-g-output;
 629     &sub-g-parm;
 630     &sub-g-priority;
 631     &sub-g-selection;
 632     &sub-g-sliced-vbi-cap;
 633     &sub-g-std;
 634     &sub-g-tuner;
 635     &sub-log-status;
 636     &sub-overlay;
 637     &sub-prepare-buf;
 638     &sub-qbuf;
 639     &sub-querybuf;
 640     &sub-querycap;
 641     &sub-queryctrl;
 642     &sub-query-dv-timings;
 643     &sub-querystd;
 644     &sub-reqbufs;
 645     &sub-s-hw-freq-seek;
 646     &sub-streamon;
 647     &sub-subdev-enum-frame-interval;
 648     &sub-subdev-enum-frame-size;
 649     &sub-subdev-enum-mbus-code;
 650     &sub-subdev-g-crop;
 651     &sub-subdev-g-fmt;
 652     &sub-subdev-g-frame-interval;
 653     &sub-subdev-g-selection;
 654     &sub-subscribe-event;
 655     <!-- End of ioctls. -->
 656     &sub-mmap;
 657     &sub-munmap;
 658     &sub-open;
 659     &sub-poll;
 660     &sub-read;
 661     &sub-select;
 662     &sub-write;
 663   </appendix>
 664
 665   <appendix>
 666     <title>Common definitions for V4L2 and V4L2 subdev interfaces</title>
 667       &sub-selections-common;
 668   </appendix>
 669
 670   <appendix id="videodev">
 671     <title>Video For Linux Two Header File</title>
 672     &sub-videodev2-h;
 673   </appendix>
 674
 675   <appendix id="capture-example">
 676     <title>Video Capture Example</title>
 677     &sub-capture-c;
 678   </appendix>
 679
 680   <appendix id="v4l2grab-example">
 681     <title>Video Grabber example using libv4l</title>
 682     <para>This program demonstrates how to grab V4L2 images in ppm format by
 683 using libv4l handlers. The advantage is that this grabber can potentially work
 684 with any V4L2 driver.</para>
 685     &sub-v4l2grab-c;
 686   </appendix>
 687
 688   &sub-media-indices;
 689
 690   &sub-biblio;
 691