videodev2.h source code [Linux/include/uapi/linux/videodev2.h]

1	/ SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) /
2	/*
3	* Video for Linux Two header file
4	*
5	* Copyright (C) 1999-2012 the contributors
6	*
7	* This program is free software; you can redistribute it and/or modify
8	* it under the terms of the GNU General Public License as published by
9	* the Free Software Foundation; either version 2 of the License, or
10	* (at your option) any later version.
11	*
12	* This program is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* Alternatively you can redistribute this file under the terms of the
18	* BSD license as stated below:
19	*
20	* Redistribution and use in source and binary forms, with or without
21	* modification, are permitted provided that the following conditions
22	* are met:
23	* 1. Redistributions of source code must retain the above copyright
24	* notice, this list of conditions and the following disclaimer.
25	* 2. Redistributions in binary form must reproduce the above copyright
26	* notice, this list of conditions and the following disclaimer in
27	* the documentation and/or other materials provided with the
28	* distribution.
29	* 3. The names of its contributors may not be used to endorse or promote
30	* products derived from this software without specific prior written
31	* permission.
32	*
33	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
34	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
35	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
36	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
37	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
38	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
39	* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
40	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
41	* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
42	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
43	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44	*
45	* Header file for v4l or V4L2 drivers and applications
46	* with public API.
47	* All kernel-specific stuff were moved to media/v4l2-dev.h, so
48	* no #if __KERNEL tests are allowed here
49	*
50	* See https://linuxtv.org for more info
51	*
52	* Author: Bill Dirks <bill@thedirks.org>
53	* Justin Schoeman
54	* Hans Verkuil <hverkuil@kernel.org>
55	* et al.
56	*/
57	#ifndef _UAPI__LINUX_VIDEODEV2_H
58	#define _UAPI__LINUX_VIDEODEV2_H
59
60	#ifndef __KERNEL__
61	#include <sys/time.h>
62	#endif
63	#include <linux/compiler.h>
64	#include <linux/ioctl.h>
65	#include <linux/types.h>
66	#include <linux/v4l2-common.h>
67	#include <linux/v4l2-controls.h>
68
69	/*
70	* Common stuff for both V4L1 and V4L2
71	* Moved from videodev.h
72	*/
73	#define VIDEO_MAX_FRAME 32
74	#define VIDEO_MAX_PLANES 8
75
76	/*
77	* M I S C E L L A N E O U S
78	*/
79
80	/ Four-character-code (FOURCC) /
81	#define v4l2_fourcc(a, b, c, d)\
82	((__u32)(a) \| ((__u32)(b) << 8) \| ((__u32)(c) << 16) \| ((__u32)(d) << 24))
83	#define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) \| (1U << 31))
84
85	/*
86	* E N U M S
87	*/
88	enum v4l2_field {
89	V4L2_FIELD_ANY = `0`, / driver can choose from none,*
90	top, bottom, interlaced
91	depending on whatever it thinks
92	is approximate ... /*
93	V4L2_FIELD_NONE = `1`, / this device has no fields ... /
94	V4L2_FIELD_TOP = `2`, / top field only /
95	V4L2_FIELD_BOTTOM = `3`, / bottom field only /
96	V4L2_FIELD_INTERLACED = `4`, / both fields interlaced /
97	V4L2_FIELD_SEQ_TB = `5`, / both fields sequential into one*
98	buffer, top-bottom order /*
99	V4L2_FIELD_SEQ_BT = `6`, / same as above + bottom-top order /
100	V4L2_FIELD_ALTERNATE = `7`, / both fields alternating into*
101	separate buffers /*
102	V4L2_FIELD_INTERLACED_TB = `8`, / both fields interlaced, top field*
103	first and the top field is
104	transmitted first /*
105	V4L2_FIELD_INTERLACED_BT = `9`, / both fields interlaced, top field*
106	first and the bottom field is
107	transmitted first /*
108	};
109	#define V4L2_FIELD_HAS_TOP(field) \
110	((field) == V4L2_FIELD_TOP \|\|\
111	(field) == V4L2_FIELD_INTERLACED \|\|\
112	(field) == V4L2_FIELD_INTERLACED_TB \|\|\
113	(field) == V4L2_FIELD_INTERLACED_BT \|\|\
114	(field) == V4L2_FIELD_SEQ_TB \|\|\
115	(field) == V4L2_FIELD_SEQ_BT)
116	#define V4L2_FIELD_HAS_BOTTOM(field) \
117	((field) == V4L2_FIELD_BOTTOM \|\|\
118	(field) == V4L2_FIELD_INTERLACED \|\|\
119	(field) == V4L2_FIELD_INTERLACED_TB \|\|\
120	(field) == V4L2_FIELD_INTERLACED_BT \|\|\
121	(field) == V4L2_FIELD_SEQ_TB \|\|\
122	(field) == V4L2_FIELD_SEQ_BT)
123	#define V4L2_FIELD_HAS_BOTH(field) \
124	((field) == V4L2_FIELD_INTERLACED \|\|\
125	(field) == V4L2_FIELD_INTERLACED_TB \|\|\
126	(field) == V4L2_FIELD_INTERLACED_BT \|\|\
127	(field) == V4L2_FIELD_SEQ_TB \|\|\
128	(field) == V4L2_FIELD_SEQ_BT)
129	#define V4L2_FIELD_HAS_T_OR_B(field) \
130	((field) == V4L2_FIELD_BOTTOM \|\|\
131	(field) == V4L2_FIELD_TOP \|\|\
132	(field) == V4L2_FIELD_ALTERNATE)
133	#define V4L2_FIELD_IS_INTERLACED(field) \
134	((field) == V4L2_FIELD_INTERLACED \|\|\
135	(field) == V4L2_FIELD_INTERLACED_TB \|\|\
136	(field) == V4L2_FIELD_INTERLACED_BT)
137	#define V4L2_FIELD_IS_SEQUENTIAL(field) \
138	((field) == V4L2_FIELD_SEQ_TB \|\|\
139	(field) == V4L2_FIELD_SEQ_BT)
140
141	enum v4l2_buf_type {
142	V4L2_BUF_TYPE_VIDEO_CAPTURE = `1`,
143	V4L2_BUF_TYPE_VIDEO_OUTPUT = `2`,
144	V4L2_BUF_TYPE_VIDEO_OVERLAY = `3`,
145	V4L2_BUF_TYPE_VBI_CAPTURE = `4`,
146	V4L2_BUF_TYPE_VBI_OUTPUT = `5`,
147	V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = `6`,
148	V4L2_BUF_TYPE_SLICED_VBI_OUTPUT = `7`,
149	V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = `8`,
150	V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = `9`,
151	V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = `10`,
152	V4L2_BUF_TYPE_SDR_CAPTURE = `11`,
153	V4L2_BUF_TYPE_SDR_OUTPUT = `12`,
154	V4L2_BUF_TYPE_META_CAPTURE = `13`,
155	V4L2_BUF_TYPE_META_OUTPUT = `14`,
156	/*
157	* Note: V4L2_TYPE_IS_VALID and V4L2_TYPE_IS_OUTPUT must
158	* be updated if a new type is added.
159	*/
160	/ Deprecated, do not use /
161	V4L2_BUF_TYPE_PRIVATE = `0x80`,
162	};
163
164	#define V4L2_TYPE_IS_VALID(type) \
165	((type) >= V4L2_BUF_TYPE_VIDEO_CAPTURE &&\
166	(type) <= V4L2_BUF_TYPE_META_OUTPUT)
167
168	#define V4L2_TYPE_IS_MULTIPLANAR(type) \
169	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE \
170	\|\| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
171
172	#define V4L2_TYPE_IS_OUTPUT(type) \
173	((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT \
174	\|\| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE \
175	\|\| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY \
176	\|\| (type) == V4L2_BUF_TYPE_VBI_OUTPUT \
177	\|\| (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT \
178	\|\| (type) == V4L2_BUF_TYPE_SDR_OUTPUT \
179	\|\| (type) == V4L2_BUF_TYPE_META_OUTPUT)
180
181	#define V4L2_TYPE_IS_CAPTURE(type) \
182	(V4L2_TYPE_IS_VALID(type) && !V4L2_TYPE_IS_OUTPUT(type))
183
184	enum v4l2_tuner_type {
185	V4L2_TUNER_RADIO = `1`,
186	V4L2_TUNER_ANALOG_TV = `2`,
187	V4L2_TUNER_DIGITAL_TV = `3`,
188	V4L2_TUNER_SDR = `4`,
189	V4L2_TUNER_RF = `5`,
190	};
191
192	/ Deprecated, do not use /
193	#define V4L2_TUNER_ADC V4L2_TUNER_SDR
194
195	enum v4l2_memory {
196	V4L2_MEMORY_MMAP = `1`,
197	V4L2_MEMORY_USERPTR = `2`,
198	V4L2_MEMORY_OVERLAY = `3`,
199	V4L2_MEMORY_DMABUF = `4`,
200	};
201
202	/ see also http://vektor.theorem.ca/graphics/ycbcr/ /
203	enum v4l2_colorspace {
204	/*
205	* Default colorspace, i.e. let the driver figure it out.
206	* Can only be used with video capture.
207	*/
208	V4L2_COLORSPACE_DEFAULT = `0`,
209
210	/ SMPTE 170M: used for broadcast NTSC/PAL SDTV /
211	V4L2_COLORSPACE_SMPTE170M = `1`,
212
213	/ Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 /
214	V4L2_COLORSPACE_SMPTE240M = `2`,
215
216	/ Rec.709: used for HDTV /
217	V4L2_COLORSPACE_REC709 = `3`,
218
219	/*
220	* Deprecated, do not use. No driver will ever return this. This was
221	* based on a misunderstanding of the bt878 datasheet.
222	*/
223	V4L2_COLORSPACE_BT878 = `4`,
224
225	/*
226	* NTSC 1953 colorspace. This only makes sense when dealing with
227	* really, really old NTSC recordings. Superseded by SMPTE 170M.
228	*/
229	V4L2_COLORSPACE_470_SYSTEM_M = `5`,
230
231	/*
232	* EBU Tech 3213 PAL/SECAM colorspace.
233	*/
234	V4L2_COLORSPACE_470_SYSTEM_BG = `6`,
235
236	/*
237	* Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
238	* and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
239	*/
240	V4L2_COLORSPACE_JPEG = `7`,
241
242	/ For RGB colorspaces such as produces by most webcams. /
243	V4L2_COLORSPACE_SRGB = `8`,
244
245	/ opRGB colorspace /
246	V4L2_COLORSPACE_OPRGB = `9`,
247
248	/ BT.2020 colorspace, used for UHDTV. /
249	V4L2_COLORSPACE_BT2020 = `10`,
250
251	/ Raw colorspace: for RAW unprocessed images /
252	V4L2_COLORSPACE_RAW = `11`,
253
254	/ DCI-P3 colorspace, used by cinema projectors /
255	V4L2_COLORSPACE_DCI_P3 = `12`,
256
257	#ifdef __KERNEL__
258	/*
259	* Largest supported colorspace value, assigned by the compiler, used
260	* by the framework to check for invalid values.
261	*/
262	V4L2_COLORSPACE_LAST,
263	#endif
264	};
265
266	/*
267	* Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
268	* This depends on whether this is a SDTV image (use SMPTE 170M), an
269	* HDTV image (use Rec. 709), or something else (use sRGB).
270	*/
271	#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
272	((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
273	((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))
274
275	enum v4l2_xfer_func {
276	/*
277	* Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
278	* for the various colorspaces:
279	*
280	* V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
281	* V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
282	* V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
283	*
284	* V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
285	*
286	* V4L2_COLORSPACE_OPRGB: V4L2_XFER_FUNC_OPRGB
287	*
288	* V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
289	*
290	* V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
291	*
292	* V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
293	*/
294	V4L2_XFER_FUNC_DEFAULT = `0`,
295	V4L2_XFER_FUNC_709 = `1`,
296	V4L2_XFER_FUNC_SRGB = `2`,
297	V4L2_XFER_FUNC_OPRGB = `3`,
298	V4L2_XFER_FUNC_SMPTE240M = `4`,
299	V4L2_XFER_FUNC_NONE = `5`,
300	V4L2_XFER_FUNC_DCI_P3 = `6`,
301	V4L2_XFER_FUNC_SMPTE2084 = `7`,
302	#ifdef __KERNEL__
303	/*
304	* Largest supported transfer function value, assigned by the compiler,
305	* used by the framework to check for invalid values.
306	*/
307	V4L2_XFER_FUNC_LAST,
308	#endif
309	};
310
311	/*
312	* Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
313	* This depends on the colorspace.
314	*/
315	#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
316	((colsp) == V4L2_COLORSPACE_OPRGB ? V4L2_XFER_FUNC_OPRGB : \
317	((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
318	((colsp) == V4L2_COLORSPACE_DCI_P3 ? V4L2_XFER_FUNC_DCI_P3 : \
319	((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
320	((colsp) == V4L2_COLORSPACE_SRGB \|\| (colsp) == V4L2_COLORSPACE_JPEG ? \
321	V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))))
322
323	enum v4l2_ycbcr_encoding {
324	/*
325	* Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
326	* various colorspaces:
327	*
328	* V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
329	* V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_SRGB,
330	* V4L2_COLORSPACE_OPRGB and V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
331	*
332	* V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709
333	*
334	* V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
335	*
336	* V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
337	*/
338	V4L2_YCBCR_ENC_DEFAULT = `0`,
339
340	/ ITU-R 601 -- SDTV /
341	V4L2_YCBCR_ENC_601 = `1`,
342
343	/ Rec. 709 -- HDTV /
344	V4L2_YCBCR_ENC_709 = `2`,
345
346	/ ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV /
347	V4L2_YCBCR_ENC_XV601 = `3`,
348
349	/ Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV /
350	V4L2_YCBCR_ENC_XV709 = `4`,
351
352	#ifndef __KERNEL__
353	/*
354	* sYCC (Y'CbCr encoding of sRGB), identical to ENC_601. It was added
355	* originally due to a misunderstanding of the sYCC standard. It should
356	* not be used, instead use V4L2_YCBCR_ENC_601.
357	*/
358	V4L2_YCBCR_ENC_SYCC = `5`,
359	#endif
360
361	/ BT.2020 Non-constant Luminance Y'CbCr /
362	V4L2_YCBCR_ENC_BT2020 = `6`,
363
364	/ BT.2020 Constant Luminance Y'CbcCrc /
365	V4L2_YCBCR_ENC_BT2020_CONST_LUM = `7`,
366
367	/ SMPTE 240M -- Obsolete HDTV /
368	V4L2_YCBCR_ENC_SMPTE240M = `8`,
369	#ifdef __KERNEL__
370	/*
371	* Largest supported encoding value, assigned by the compiler, used by
372	* the framework to check for invalid values.
373	*/
374	V4L2_YCBCR_ENC_LAST,
375	#endif
376	};
377
378	/*
379	* enum v4l2_hsv_encoding values should not collide with the ones from
380	* enum v4l2_ycbcr_encoding.
381	*/
382	enum v4l2_hsv_encoding {
383
384	/ Hue mapped to 0 - 179 /
385	V4L2_HSV_ENC_180 = `128`,
386
387	/ Hue mapped to 0-255 /
388	V4L2_HSV_ENC_256 = `129`,
389	};
390
391	/*
392	* Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
393	* This depends on the colorspace.
394	*/
395	#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
396	(((colsp) == V4L2_COLORSPACE_REC709 \|\| \
397	(colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \
398	((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
399	((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
400	V4L2_YCBCR_ENC_601)))
401
402	enum v4l2_quantization {
403	/*
404	* The default for R'G'B' quantization is always full range.
405	* For Y'CbCr the quantization is always limited range, except
406	* for COLORSPACE_JPEG: this is full range.
407	*/
408	V4L2_QUANTIZATION_DEFAULT = `0`,
409	V4L2_QUANTIZATION_FULL_RANGE = `1`,
410	V4L2_QUANTIZATION_LIM_RANGE = `2`,
411	};
412
413	/*
414	* Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
415	* This depends on whether the image is RGB or not, the colorspace.
416	* The Y'CbCr encoding is not used anymore, but is still there for backwards
417	* compatibility.
418	*/
419	#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
420	(((is_rgb_or_hsv) \|\| (colsp) == V4L2_COLORSPACE_JPEG) ? \
421	V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)
422
423	/*
424	* Deprecated names for opRGB colorspace (IEC 61966-2-5)
425	*
426	* WARNING: Please don't use these deprecated defines in your code, as
427	* there is a chance we have to remove them in the future.
428	*/
429	#ifndef __KERNEL__
430	#define V4L2_COLORSPACE_ADOBERGB V4L2_COLORSPACE_OPRGB
431	#define V4L2_XFER_FUNC_ADOBERGB V4L2_XFER_FUNC_OPRGB
432	#endif
433
434	enum v4l2_priority {
435	V4L2_PRIORITY_UNSET = `0`, / not initialized /
436	V4L2_PRIORITY_BACKGROUND = `1`,
437	V4L2_PRIORITY_INTERACTIVE = `2`,
438	V4L2_PRIORITY_RECORD = `3`,
439	V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE,
440	};
441
442	struct v4l2_rect {
443	__s32 left;
444	__s32 top;
445	__u32 width;
446	__u32 height;
447	};
448
449	struct v4l2_fract {
450	__u32 numerator;
451	__u32 denominator;
452	};
453
454	struct v4l2_area {
455	__u32 width;
456	__u32 height;
457	};
458
459	/**
460	* struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
461	*
462	* @driver: name of the driver module (e.g. "bttv")
463	* @card: name of the card (e.g. "Hauppauge WinTV")
464	* @bus_info: name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
465	* @version: KERNEL_VERSION
466	* @capabilities: capabilities of the physical device as a whole
467	* @device_caps: capabilities accessed via this particular device (node)
468	* @reserved: reserved fields for future extensions
469	*/
470	struct v4l2_capability {
471	__u8 driver[`16`];
472	__u8 card[`32`];
473	__u8 bus_info[`32`];
474	__u32 version;
475	__u32 capabilities;
476	__u32 device_caps;
477	__u32 reserved[`3`];
478	};
479
480	/ Values for 'capabilities' field /
481	#define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */
482	#define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */
483	#define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */
484	#define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a raw VBI capture device */
485	#define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a raw VBI output device */
486	#define V4L2_CAP_SLICED_VBI_CAPTURE 0x00000040 /* Is a sliced VBI capture device */
487	#define V4L2_CAP_SLICED_VBI_OUTPUT 0x00000080 /* Is a sliced VBI output device */
488	#define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */
489	#define V4L2_CAP_VIDEO_OUTPUT_OVERLAY 0x00000200 /* Can do video output overlay */
490	#define V4L2_CAP_HW_FREQ_SEEK 0x00000400 /* Can do hardware frequency seek */
491	#define V4L2_CAP_RDS_OUTPUT 0x00000800 /* Is an RDS encoder */
492
493	/ Is a video capture device that supports multiplanar formats /
494	#define V4L2_CAP_VIDEO_CAPTURE_MPLANE 0x00001000
495	/ Is a video output device that supports multiplanar formats /
496	#define V4L2_CAP_VIDEO_OUTPUT_MPLANE 0x00002000
497	/ Is a video mem-to-mem device that supports multiplanar formats /
498	#define V4L2_CAP_VIDEO_M2M_MPLANE 0x00004000
499	/ Is a video mem-to-mem device /
500	#define V4L2_CAP_VIDEO_M2M 0x00008000
501
502	#define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
503	#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
504	#define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
505	#define V4L2_CAP_MODULATOR 0x00080000 /* has a modulator */
506
507	#define V4L2_CAP_SDR_CAPTURE 0x00100000 /* Is a SDR capture device */
508	#define V4L2_CAP_EXT_PIX_FORMAT 0x00200000 /* Supports the extended pixel format */
509	#define V4L2_CAP_SDR_OUTPUT 0x00400000 /* Is a SDR output device */
510	#define V4L2_CAP_META_CAPTURE 0x00800000 /* Is a metadata capture device */
511
512	#define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */
513	#define V4L2_CAP_EDID 0x02000000 /* Is an EDID-only device */
514	#define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */
515	#define V4L2_CAP_META_OUTPUT 0x08000000 /* Is a metadata output device */
516
517	#define V4L2_CAP_TOUCH 0x10000000 /* Is a touch device */
518
519	#define V4L2_CAP_IO_MC 0x20000000 /* Is input/output controlled by the media controller */
520
521	#define V4L2_CAP_DEVICE_CAPS 0x80000000 /* sets device capabilities field */
522
523	/*
524	* V I D E O I M A G E F O R M A T
525	*/
526	struct v4l2_pix_format {
527	__u32 width;
528	__u32 height;
529	__u32 pixelformat;
530	__u32 field; / enum v4l2_field /
531	__u32 bytesperline; / for padding, zero if unused /
532	__u32 sizeimage;
533	__u32 colorspace; / enum v4l2_colorspace /
534	__u32 priv; / private data, depends on pixelformat /
535	__u32 flags; / format flags (V4L2_PIX_FMT_FLAG_) /*
536	union {
537	/ enum v4l2_ycbcr_encoding /
538	__u32 ycbcr_enc;
539	/ enum v4l2_hsv_encoding /
540	__u32 hsv_enc;
541	};
542	__u32 quantization; / enum v4l2_quantization /
543	__u32 xfer_func; / enum v4l2_xfer_func /
544	};
545
546	/ Pixel format FOURCC depth Description /
547
548	/ RGB formats (1 or 2 bytes per pixel) /
549	#define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R', 'G', 'B', '1') /* 8 RGB-3-3-2 */
550	#define V4L2_PIX_FMT_RGB444 v4l2_fourcc('R', '4', '4', '4') /* 16 xxxxrrrr ggggbbbb */
551	#define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16 aaaarrrr ggggbbbb */
552	#define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16 xxxxrrrr ggggbbbb */
553	#define V4L2_PIX_FMT_RGBA444 v4l2_fourcc('R', 'A', '1', '2') /* 16 rrrrgggg bbbbaaaa */
554	#define V4L2_PIX_FMT_RGBX444 v4l2_fourcc('R', 'X', '1', '2') /* 16 rrrrgggg bbbbxxxx */
555	#define V4L2_PIX_FMT_ABGR444 v4l2_fourcc('A', 'B', '1', '2') /* 16 aaaabbbb ggggrrrr */
556	#define V4L2_PIX_FMT_XBGR444 v4l2_fourcc('X', 'B', '1', '2') /* 16 xxxxbbbb ggggrrrr */
557	#define V4L2_PIX_FMT_BGRA444 v4l2_fourcc('G', 'A', '1', '2') /* 16 bbbbgggg rrrraaaa */
558	#define V4L2_PIX_FMT_BGRX444 v4l2_fourcc('B', 'X', '1', '2') /* 16 bbbbgggg rrrrxxxx */
559	#define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R', 'G', 'B', 'O') /* 16 RGB-5-5-5 */
560	#define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5') /* 16 ARGB-1-5-5-5 */
561	#define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16 XRGB-1-5-5-5 */
562	#define V4L2_PIX_FMT_RGBA555 v4l2_fourcc('R', 'A', '1', '5') /* 16 RGBA-5-5-5-1 */
563	#define V4L2_PIX_FMT_RGBX555 v4l2_fourcc('R', 'X', '1', '5') /* 16 RGBX-5-5-5-1 */
564	#define V4L2_PIX_FMT_ABGR555 v4l2_fourcc('A', 'B', '1', '5') /* 16 ABGR-1-5-5-5 */
565	#define V4L2_PIX_FMT_XBGR555 v4l2_fourcc('X', 'B', '1', '5') /* 16 XBGR-1-5-5-5 */
566	#define V4L2_PIX_FMT_BGRA555 v4l2_fourcc('B', 'A', '1', '5') /* 16 BGRA-5-5-5-1 */
567	#define V4L2_PIX_FMT_BGRX555 v4l2_fourcc('B', 'X', '1', '5') /* 16 BGRX-5-5-5-1 */
568	#define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R', 'G', 'B', 'P') /* 16 RGB-5-6-5 */
569	#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16 RGB-5-5-5 BE */
570	#define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16 ARGB-5-5-5 BE */
571	#define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16 XRGB-5-5-5 BE */
572	#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16 RGB-5-6-5 BE */
573
574	/ RGB formats (3 or 4 bytes per pixel) /
575	#define V4L2_PIX_FMT_BGR666 v4l2_fourcc('B', 'G', 'R', 'H') /* 18 BGR-6-6-6 */
576	#define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B', 'G', 'R', '3') /* 24 BGR-8-8-8 */
577	#define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R', 'G', 'B', '3') /* 24 RGB-8-8-8 */
578	#define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B', 'G', 'R', '4') /* 32 BGR-8-8-8-8 */
579	#define V4L2_PIX_FMT_ABGR32 v4l2_fourcc('A', 'R', '2', '4') /* 32 BGRA-8-8-8-8 */
580	#define V4L2_PIX_FMT_XBGR32 v4l2_fourcc('X', 'R', '2', '4') /* 32 BGRX-8-8-8-8 */
581	#define V4L2_PIX_FMT_BGRA32 v4l2_fourcc('R', 'A', '2', '4') /* 32 ABGR-8-8-8-8 */
582	#define V4L2_PIX_FMT_BGRX32 v4l2_fourcc('R', 'X', '2', '4') /* 32 XBGR-8-8-8-8 */
583	#define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R', 'G', 'B', '4') /* 32 RGB-8-8-8-8 */
584	#define V4L2_PIX_FMT_RGBA32 v4l2_fourcc('A', 'B', '2', '4') /* 32 RGBA-8-8-8-8 */
585	#define V4L2_PIX_FMT_RGBX32 v4l2_fourcc('X', 'B', '2', '4') /* 32 RGBX-8-8-8-8 */
586	#define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4') /* 32 ARGB-8-8-8-8 */
587	#define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4') /* 32 XRGB-8-8-8-8 */
588	#define V4L2_PIX_FMT_RGBX1010102 v4l2_fourcc('R', 'X', '3', '0') /* 32 RGBX-10-10-10-2 */
589	#define V4L2_PIX_FMT_RGBA1010102 v4l2_fourcc('R', 'A', '3', '0') /* 32 RGBA-10-10-10-2 */
590	#define V4L2_PIX_FMT_ARGB2101010 v4l2_fourcc('A', 'R', '3', '0') /* 32 ARGB-2-10-10-10 */
591
592	/ RGB formats (6 or 8 bytes per pixel) /
593	#define V4L2_PIX_FMT_BGR48_12 v4l2_fourcc('B', '3', '1', '2') /* 48 BGR 12-bit per component */
594	#define V4L2_PIX_FMT_BGR48 v4l2_fourcc('B', 'G', 'R', '6') /* 48 BGR 16-bit per component */
595	#define V4L2_PIX_FMT_RGB48 v4l2_fourcc('R', 'G', 'B', '6') /* 48 RGB 16-bit per component */
596	#define V4L2_PIX_FMT_ABGR64_12 v4l2_fourcc('B', '4', '1', '2') /* 64 BGRA 12-bit per component */
597
598	/ Grey formats /
599	#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
600	#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */
601	#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
602	#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
603	#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */
604	#define V4L2_PIX_FMT_Y012 v4l2_fourcc('Y', '0', '1', '2') /* 12 Greyscale */
605	#define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ') /* 14 Greyscale */
606	#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
607	#define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16 Greyscale BE */
608
609	/ Grey bit-packed formats /
610	#define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */
611	#define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale, MIPI RAW10 packed */
612	#define V4L2_PIX_FMT_IPU3_Y10 v4l2_fourcc('i', 'p', '3', 'y') /* IPU3 packed 10-bit greyscale */
613	#define V4L2_PIX_FMT_Y12P v4l2_fourcc('Y', '1', '2', 'P') /* 12 Greyscale, MIPI RAW12 packed */
614	#define V4L2_PIX_FMT_Y14P v4l2_fourcc('Y', '1', '4', 'P') /* 14 Greyscale, MIPI RAW14 packed */
615
616	/ Palette formats /
617	#define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */
618
619	/ Chrominance formats /
620	#define V4L2_PIX_FMT_UV8 v4l2_fourcc('U', 'V', '8', ' ') /* 8 UV 4:4 */
621
622	/ Luminance+Chrominance formats /
623	#define V4L2_PIX_FMT_YUYV v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16 YUV 4:2:2 */
624	#define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16 YUV 4:2:2 */
625	#define V4L2_PIX_FMT_YVYU v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
626	#define V4L2_PIX_FMT_UYVY v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16 YUV 4:2:2 */
627	#define V4L2_PIX_FMT_VYUY v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16 YUV 4:2:2 */
628	#define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y', '4', '1', 'P') /* 12 YUV 4:1:1 */
629	#define V4L2_PIX_FMT_YUV444 v4l2_fourcc('Y', '4', '4', '4') /* 16 xxxxyyyy uuuuvvvv */
630	#define V4L2_PIX_FMT_YUV555 v4l2_fourcc('Y', 'U', 'V', 'O') /* 16 YUV-5-5-5 */
631	#define V4L2_PIX_FMT_YUV565 v4l2_fourcc('Y', 'U', 'V', 'P') /* 16 YUV-5-6-5 */
632	#define V4L2_PIX_FMT_YUV24 v4l2_fourcc('Y', 'U', 'V', '3') /* 24 YUV-8-8-8 */
633	#define V4L2_PIX_FMT_YUV32 v4l2_fourcc('Y', 'U', 'V', '4') /* 32 YUV-8-8-8-8 */
634	#define V4L2_PIX_FMT_AYUV32 v4l2_fourcc('A', 'Y', 'U', 'V') /* 32 AYUV-8-8-8-8 */
635	#define V4L2_PIX_FMT_XYUV32 v4l2_fourcc('X', 'Y', 'U', 'V') /* 32 XYUV-8-8-8-8 */
636	#define V4L2_PIX_FMT_VUYA32 v4l2_fourcc('V', 'U', 'Y', 'A') /* 32 VUYA-8-8-8-8 */
637	#define V4L2_PIX_FMT_VUYX32 v4l2_fourcc('V', 'U', 'Y', 'X') /* 32 VUYX-8-8-8-8 */
638	#define V4L2_PIX_FMT_YUVA32 v4l2_fourcc('Y', 'U', 'V', 'A') /* 32 YUVA-8-8-8-8 */
639	#define V4L2_PIX_FMT_YUVX32 v4l2_fourcc('Y', 'U', 'V', 'X') /* 32 YUVX-8-8-8-8 */
640	#define V4L2_PIX_FMT_M420 v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */
641	#define V4L2_PIX_FMT_YUV48_12 v4l2_fourcc('Y', '3', '1', '2') /* 48 YUV 4:4:4 12-bit per component */
642
643	/*
644	* YCbCr packed format. For each Y2xx format, xx bits of valid data occupy the MSBs
645	* of the 16 bit components, and 16-xx bits of zero padding occupy the LSBs.
646	*/
647	#define V4L2_PIX_FMT_Y210 v4l2_fourcc('Y', '2', '1', '0') /* 32 YUYV 4:2:2 */
648	#define V4L2_PIX_FMT_Y212 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 4:2:2 */
649	#define V4L2_PIX_FMT_Y216 v4l2_fourcc('Y', '2', '1', '6') /* 32 YUYV 4:2:2 */
650
651	/ two planes -- one Y, one Cr + Cb interleaved /
652	#define V4L2_PIX_FMT_NV12 v4l2_fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */
653	#define V4L2_PIX_FMT_NV21 v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */
654	#define V4L2_PIX_FMT_NV15 v4l2_fourcc('N', 'V', '1', '5') /* 15 Y/CbCr 4:2:0 10-bit packed */
655	#define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */
656	#define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */
657	#define V4L2_PIX_FMT_NV20 v4l2_fourcc('N', 'V', '2', '0') /* 20 Y/CbCr 4:2:2 10-bit packed */
658	#define V4L2_PIX_FMT_NV24 v4l2_fourcc('N', 'V', '2', '4') /* 24 Y/CbCr 4:4:4 */
659	#define V4L2_PIX_FMT_NV42 v4l2_fourcc('N', 'V', '4', '2') /* 24 Y/CrCb 4:4:4 */
660	#define V4L2_PIX_FMT_P010 v4l2_fourcc('P', '0', '1', '0') /* 24 Y/CbCr 4:2:0 10-bit per component */
661	#define V4L2_PIX_FMT_P012 v4l2_fourcc('P', '0', '1', '2') /* 24 Y/CbCr 4:2:0 12-bit per component */
662
663	/ two non contiguous planes - one Y, one Cr + Cb interleaved /
664	#define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */
665	#define V4L2_PIX_FMT_NV21M v4l2_fourcc('N', 'M', '2', '1') /* 21 Y/CrCb 4:2:0 */
666	#define V4L2_PIX_FMT_NV16M v4l2_fourcc('N', 'M', '1', '6') /* 16 Y/CbCr 4:2:2 */
667	#define V4L2_PIX_FMT_NV61M v4l2_fourcc('N', 'M', '6', '1') /* 16 Y/CrCb 4:2:2 */
668	#define V4L2_PIX_FMT_P012M v4l2_fourcc('P', 'M', '1', '2') /* 24 Y/CbCr 4:2:0 12-bit per component */
669
670	/ three planes - Y Cb, Cr /
671	#define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y', 'U', 'V', '9') /* 9 YUV 4:1:0 */
672	#define V4L2_PIX_FMT_YVU410 v4l2_fourcc('Y', 'V', 'U', '9') /* 9 YVU 4:1:0 */
673	#define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 12 YVU411 planar */
674	#define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y', 'U', '1', '2') /* 12 YUV 4:2:0 */
675	#define V4L2_PIX_FMT_YVU420 v4l2_fourcc('Y', 'V', '1', '2') /* 12 YVU 4:2:0 */
676	#define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16 YVU422 planar */
677
678	/ three non contiguous planes - Y, Cb, Cr /
679	#define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12 YUV420 planar */
680	#define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12 YVU420 planar */
681	#define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16 YUV422 planar */
682	#define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16 YVU422 planar */
683	#define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24 YUV444 planar */
684	#define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24 YVU444 planar */
685
686	/ Tiled YUV formats /
687	#define V4L2_PIX_FMT_NV12_4L4 v4l2_fourcc('V', 'T', '1', '2') /* 12 Y/CbCr 4:2:0 4x4 tiles */
688	#define V4L2_PIX_FMT_NV12_16L16 v4l2_fourcc('H', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 16x16 tiles */
689	#define V4L2_PIX_FMT_NV12_32L32 v4l2_fourcc('S', 'T', '1', '2') /* 12 Y/CbCr 4:2:0 32x32 tiles */
690	#define V4L2_PIX_FMT_NV15_4L4 v4l2_fourcc('V', 'T', '1', '5') /* 15 Y/CbCr 4:2:0 10-bit 4x4 tiles */
691	#define V4L2_PIX_FMT_P010_4L4 v4l2_fourcc('T', '0', '1', '0') /* 12 Y/CbCr 4:2:0 10-bit 4x4 macroblocks */
692	#define V4L2_PIX_FMT_NV12_8L128 v4l2_fourcc('A', 'T', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
693	#define V4L2_PIX_FMT_NV12_10BE_8L128 v4l2_fourcc_be('A', 'X', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
694
695	/ Tiled YUV formats, non contiguous planes /
696	#define V4L2_PIX_FMT_NV12MT v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 tiles */
697	#define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 16x16 tiles */
698	#define V4L2_PIX_FMT_NV12M_8L128 v4l2_fourcc('N', 'A', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
699	#define V4L2_PIX_FMT_NV12M_10BE_8L128 v4l2_fourcc_be('N', 'T', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
700
701	/ Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm /
702	#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */
703	#define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */
704	#define V4L2_PIX_FMT_SGRBG8 v4l2_fourcc('G', 'R', 'B', 'G') /* 8 GRGR.. BGBG.. */
705	#define V4L2_PIX_FMT_SRGGB8 v4l2_fourcc('R', 'G', 'G', 'B') /* 8 RGRG.. GBGB.. */
706	#define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10 BGBG.. GRGR.. */
707	#define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10 GBGB.. RGRG.. */
708	#define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10 GRGR.. BGBG.. */
709	#define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10 RGRG.. GBGB.. */
710	/ 10bit raw bayer packed, 5 bytes for every 4 pixels /
711	#define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
712	#define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
713	#define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
714	#define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
715	/ 10bit raw bayer a-law compressed to 8 bits /
716	#define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
717	#define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
718	#define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
719	#define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
720	/ 10bit raw bayer DPCM compressed to 8 bits /
721	#define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
722	#define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
723	#define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
724	#define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
725	#define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12 BGBG.. GRGR.. */
726	#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */
727	#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */
728	#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */
729	/ 12bit raw bayer packed, 3 bytes for every 2 pixels /
730	#define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
731	#define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
732	#define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
733	#define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
734	#define V4L2_PIX_FMT_SBGGR14 v4l2_fourcc('B', 'G', '1', '4') /* 14 BGBG.. GRGR.. */
735	#define V4L2_PIX_FMT_SGBRG14 v4l2_fourcc('G', 'B', '1', '4') /* 14 GBGB.. RGRG.. */
736	#define V4L2_PIX_FMT_SGRBG14 v4l2_fourcc('G', 'R', '1', '4') /* 14 GRGR.. BGBG.. */
737	#define V4L2_PIX_FMT_SRGGB14 v4l2_fourcc('R', 'G', '1', '4') /* 14 RGRG.. GBGB.. */
738	/ 14bit raw bayer packed, 7 bytes for every 4 pixels /
739	#define V4L2_PIX_FMT_SBGGR14P v4l2_fourcc('p', 'B', 'E', 'E')
740	#define V4L2_PIX_FMT_SGBRG14P v4l2_fourcc('p', 'G', 'E', 'E')
741	#define V4L2_PIX_FMT_SGRBG14P v4l2_fourcc('p', 'g', 'E', 'E')
742	#define V4L2_PIX_FMT_SRGGB14P v4l2_fourcc('p', 'R', 'E', 'E')
743	#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */
744	#define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16 GBGB.. RGRG.. */
745	#define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16 GRGR.. BGBG.. */
746	#define V4L2_PIX_FMT_SRGGB16 v4l2_fourcc('R', 'G', '1', '6') /* 16 RGRG.. GBGB.. */
747
748	/ HSV formats /
749	#define V4L2_PIX_FMT_HSV24 v4l2_fourcc('H', 'S', 'V', '3')
750	#define V4L2_PIX_FMT_HSV32 v4l2_fourcc('H', 'S', 'V', '4')
751
752	/ compressed formats /
753	#define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG */
754	#define V4L2_PIX_FMT_JPEG v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG */
755	#define V4L2_PIX_FMT_DV v4l2_fourcc('d', 'v', 's', 'd') /* 1394 */
756	#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
757	#define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
758	#define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
759	#define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
760	#define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3') /* H263 */
761	#define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */
762	#define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */
763	#define V4L2_PIX_FMT_MPEG2_SLICE v4l2_fourcc('M', 'G', '2', 'S') /* MPEG-2 parsed slice data */
764	#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
765	#define V4L2_PIX_FMT_XVID v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid */
766	#define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
767	#define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
768	#define V4L2_PIX_FMT_VP8 v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
769	#define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F') /* VP8 parsed frame */
770	#define V4L2_PIX_FMT_VP9 v4l2_fourcc('V', 'P', '9', '0') /* VP9 */
771	#define V4L2_PIX_FMT_VP9_FRAME v4l2_fourcc('V', 'P', '9', 'F') /* VP9 parsed frame */
772	#define V4L2_PIX_FMT_HEVC v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */
773	#define V4L2_PIX_FMT_FWHT v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */
774	#define V4L2_PIX_FMT_FWHT_STATELESS v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */
775	#define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */
776	#define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC parsed slices */
777	#define V4L2_PIX_FMT_AV1_FRAME v4l2_fourcc('A', 'V', '1', 'F') /* AV1 parsed frame */
778	#define V4L2_PIX_FMT_SPK v4l2_fourcc('S', 'P', 'K', '0') /* Sorenson Spark */
779	#define V4L2_PIX_FMT_RV30 v4l2_fourcc('R', 'V', '3', '0') /* RealVideo 8 */
780	#define V4L2_PIX_FMT_RV40 v4l2_fourcc('R', 'V', '4', '0') /* RealVideo 9 & 10 */
781
782	/ Vendor-specific formats /
783	#define V4L2_PIX_FMT_CPIA1 v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
784	#define V4L2_PIX_FMT_WNVA v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
785	#define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
786	#define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
787	#define V4L2_PIX_FMT_PWC1 v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
788	#define V4L2_PIX_FMT_PWC2 v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
789	#define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
790	#define V4L2_PIX_FMT_SPCA501 v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
791	#define V4L2_PIX_FMT_SPCA505 v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
792	#define V4L2_PIX_FMT_SPCA508 v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
793	#define V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
794	#define V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
795	#define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
796	#define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */
797	#define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
798	#define V4L2_PIX_FMT_SQ905C v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
799	#define V4L2_PIX_FMT_PJPG v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
800	#define V4L2_PIX_FMT_OV511 v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
801	#define V4L2_PIX_FMT_OV518 v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
802	#define V4L2_PIX_FMT_STV0680 v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
803	#define V4L2_PIX_FMT_TM6000 v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
804	#define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
805	#define V4L2_PIX_FMT_KONICA420 v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
806	#define V4L2_PIX_FMT_JPGL v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
807	#define V4L2_PIX_FMT_SE401 v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
808	#define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
809	#define V4L2_PIX_FMT_Y8I v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */
810	#define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */
811	#define V4L2_PIX_FMT_Y16I v4l2_fourcc('Y', '1', '6', 'I') /* Greyscale 16-bit L/R interleaved */
812	#define V4L2_PIX_FMT_Z16 v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
813	#define V4L2_PIX_FMT_MT21C v4l2_fourcc('M', 'T', '2', '1') /* Mediatek compressed block mode */
814	#define V4L2_PIX_FMT_MM21 v4l2_fourcc('M', 'M', '2', '1') /* Mediatek 8-bit block mode, two non-contiguous planes */
815	#define V4L2_PIX_FMT_MT2110T v4l2_fourcc('M', 'T', '2', 'T') /* Mediatek 10-bit block tile mode */
816	#define V4L2_PIX_FMT_MT2110R v4l2_fourcc('M', 'T', '2', 'R') /* Mediatek 10-bit block raster mode */
817	#define V4L2_PIX_FMT_INZI v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
818	#define V4L2_PIX_FMT_CNF4 v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */
819	#define V4L2_PIX_FMT_HI240 v4l2_fourcc('H', 'I', '2', '4') /* BTTV 8-bit dithered RGB */
820	#define V4L2_PIX_FMT_QC08C v4l2_fourcc('Q', '0', '8', 'C') /* Qualcomm 8-bit compressed */
821	#define V4L2_PIX_FMT_QC10C v4l2_fourcc('Q', '1', '0', 'C') /* Qualcomm 10-bit compressed */
822	#define V4L2_PIX_FMT_AJPG v4l2_fourcc('A', 'J', 'P', 'G') /* Aspeed JPEG */
823	#define V4L2_PIX_FMT_HEXTILE v4l2_fourcc('H', 'X', 'T', 'L') /* Hextile compressed */
824
825	/ 10bit raw packed, 32 bytes for every 25 pixels, last LSB 6 bits unused /
826	#define V4L2_PIX_FMT_IPU3_SBGGR10 v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
827	#define V4L2_PIX_FMT_IPU3_SGBRG10 v4l2_fourcc('i', 'p', '3', 'g') /* IPU3 packed 10-bit GBRG bayer */
828	#define V4L2_PIX_FMT_IPU3_SGRBG10 v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
829	#define V4L2_PIX_FMT_IPU3_SRGGB10 v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */
830
831	/ Raspberry Pi PiSP compressed formats. /
832	#define V4L2_PIX_FMT_PISP_COMP1_RGGB v4l2_fourcc('P', 'C', '1', 'R') /* PiSP 8-bit mode 1 compressed RGGB bayer */
833	#define V4L2_PIX_FMT_PISP_COMP1_GRBG v4l2_fourcc('P', 'C', '1', 'G') /* PiSP 8-bit mode 1 compressed GRBG bayer */
834	#define V4L2_PIX_FMT_PISP_COMP1_GBRG v4l2_fourcc('P', 'C', '1', 'g') /* PiSP 8-bit mode 1 compressed GBRG bayer */
835	#define V4L2_PIX_FMT_PISP_COMP1_BGGR v4l2_fourcc('P', 'C', '1', 'B') /* PiSP 8-bit mode 1 compressed BGGR bayer */
836	#define V4L2_PIX_FMT_PISP_COMP1_MONO v4l2_fourcc('P', 'C', '1', 'M') /* PiSP 8-bit mode 1 compressed monochrome */
837	#define V4L2_PIX_FMT_PISP_COMP2_RGGB v4l2_fourcc('P', 'C', '2', 'R') /* PiSP 8-bit mode 2 compressed RGGB bayer */
838	#define V4L2_PIX_FMT_PISP_COMP2_GRBG v4l2_fourcc('P', 'C', '2', 'G') /* PiSP 8-bit mode 2 compressed GRBG bayer */
839	#define V4L2_PIX_FMT_PISP_COMP2_GBRG v4l2_fourcc('P', 'C', '2', 'g') /* PiSP 8-bit mode 2 compressed GBRG bayer */
840	#define V4L2_PIX_FMT_PISP_COMP2_BGGR v4l2_fourcc('P', 'C', '2', 'B') /* PiSP 8-bit mode 2 compressed BGGR bayer */
841	#define V4L2_PIX_FMT_PISP_COMP2_MONO v4l2_fourcc('P', 'C', '2', 'M') /* PiSP 8-bit mode 2 compressed monochrome */
842
843	/ Renesas RZ/V2H CRU packed formats. 64-bit units with contiguous pixels /
844	#define V4L2_PIX_FMT_RAW_CRU10 v4l2_fourcc('C', 'R', '1', '0')
845	#define V4L2_PIX_FMT_RAW_CRU12 v4l2_fourcc('C', 'R', '1', '2')
846	#define V4L2_PIX_FMT_RAW_CRU14 v4l2_fourcc('C', 'R', '1', '4')
847	#define V4L2_PIX_FMT_RAW_CRU20 v4l2_fourcc('C', 'R', '2', '0')
848
849	/ SDR formats - used only for Software Defined Radio devices /
850	#define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
851	#define V4L2_SDR_FMT_CU16LE v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
852	#define V4L2_SDR_FMT_CS8 v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */
853	#define V4L2_SDR_FMT_CS14LE v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
854	#define V4L2_SDR_FMT_RU12LE v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
855	#define V4L2_SDR_FMT_PCU16BE v4l2_fourcc('P', 'C', '1', '6') /* planar complex u16be */
856	#define V4L2_SDR_FMT_PCU18BE v4l2_fourcc('P', 'C', '1', '8') /* planar complex u18be */
857	#define V4L2_SDR_FMT_PCU20BE v4l2_fourcc('P', 'C', '2', '0') /* planar complex u20be */
858
859	/ Touch formats - used for Touch devices /
860	#define V4L2_TCH_FMT_DELTA_TD16 v4l2_fourcc('T', 'D', '1', '6') /* 16-bit signed deltas */
861	#define V4L2_TCH_FMT_DELTA_TD08 v4l2_fourcc('T', 'D', '0', '8') /* 8-bit signed deltas */
862	#define V4L2_TCH_FMT_TU16 v4l2_fourcc('T', 'U', '1', '6') /* 16-bit unsigned touch data */
863	#define V4L2_TCH_FMT_TU08 v4l2_fourcc('T', 'U', '0', '8') /* 8-bit unsigned touch data */
864
865	/ Meta-data formats /
866	#define V4L2_META_FMT_VSP1_HGO v4l2_fourcc('V', 'S', 'P', 'H') /* R-Car VSP1 1-D Histogram */
867	#define V4L2_META_FMT_VSP1_HGT v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
868	#define V4L2_META_FMT_UVC v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
869	#define V4L2_META_FMT_D4XX v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
870	#define V4L2_META_FMT_UVC_MSXU_1_5 v4l2_fourcc('U', 'V', 'C', 'M') /* UVC MSXU metadata */
871	#define V4L2_META_FMT_VIVID v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
872
873	/ Vendor specific - used for RK_ISP1 camera sub-system /
874	#define V4L2_META_FMT_RK_ISP1_PARAMS v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */
875	#define V4L2_META_FMT_RK_ISP1_STAT_3A v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A Statistics */
876	#define V4L2_META_FMT_RK_ISP1_EXT_PARAMS v4l2_fourcc('R', 'K', '1', 'E') /* Rockchip ISP1 3a Extensible Parameters */
877
878	/ Vendor specific - used for C3_ISP /
879	#define V4L2_META_FMT_C3ISP_PARAMS v4l2_fourcc('C', '3', 'P', 'M') /* Amlogic C3 ISP Parameters */
880	#define V4L2_META_FMT_C3ISP_STATS v4l2_fourcc('C', '3', 'S', 'T') /* Amlogic C3 ISP Statistics */
881
882	/ Vendor specific - used for RaspberryPi PiSP /
883	#define V4L2_META_FMT_RPI_BE_CFG v4l2_fourcc('R', 'P', 'B', 'C') /* PiSP BE configuration */
884	#define V4L2_META_FMT_RPI_FE_CFG v4l2_fourcc('R', 'P', 'F', 'C') /* PiSP FE configuration */
885	#define V4L2_META_FMT_RPI_FE_STATS v4l2_fourcc('R', 'P', 'F', 'S') /* PiSP FE stats */
886
887	#ifdef __KERNEL__
888	/*
889	* Line-based metadata formats. Remember to update v4l_fill_fmtdesc() when
890	* adding new ones!
891	*/
892	#define V4L2_META_FMT_GENERIC_8 v4l2_fourcc('M', 'E', 'T', '8') /* Generic 8-bit metadata */
893	#define V4L2_META_FMT_GENERIC_CSI2_10 v4l2_fourcc('M', 'C', '1', 'A') /* 10-bit CSI-2 packed 8-bit metadata */
894	#define V4L2_META_FMT_GENERIC_CSI2_12 v4l2_fourcc('M', 'C', '1', 'C') /* 12-bit CSI-2 packed 8-bit metadata */
895	#define V4L2_META_FMT_GENERIC_CSI2_14 v4l2_fourcc('M', 'C', '1', 'E') /* 14-bit CSI-2 packed 8-bit metadata */
896	#define V4L2_META_FMT_GENERIC_CSI2_16 v4l2_fourcc('M', 'C', '1', 'G') /* 16-bit CSI-2 packed 8-bit metadata */
897	#define V4L2_META_FMT_GENERIC_CSI2_20 v4l2_fourcc('M', 'C', '1', 'K') /* 20-bit CSI-2 packed 8-bit metadata */
898	#define V4L2_META_FMT_GENERIC_CSI2_24 v4l2_fourcc('M', 'C', '1', 'O') /* 24-bit CSI-2 packed 8-bit metadata */
899	#endif
900
901	/ priv field value to indicates that subsequent fields are valid. /
902	#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
903
904	/ Flags /
905	#define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA 0x00000001
906	#define V4L2_PIX_FMT_FLAG_SET_CSC 0x00000002
907
908	/*
909	* F O R M A T E N U M E R A T I O N
910	*/
911	struct v4l2_fmtdesc {
912	__u32 index; / Format number /
913	__u32 type; / enum v4l2_buf_type /
914	__u32 flags;
915	__u8 description[`32`]; / Description string /
916	__u32 pixelformat; / Format fourcc /
917	__u32 mbus_code; / Media bus code /
918	__u32 reserved[`3`];
919	};
920
921	#define V4L2_FMT_FLAG_COMPRESSED 0x0001
922	#define V4L2_FMT_FLAG_EMULATED 0x0002
923	#define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM 0x0004
924	#define V4L2_FMT_FLAG_DYN_RESOLUTION 0x0008
925	#define V4L2_FMT_FLAG_ENC_CAP_FRAME_INTERVAL 0x0010
926	#define V4L2_FMT_FLAG_CSC_COLORSPACE 0x0020
927	#define V4L2_FMT_FLAG_CSC_XFER_FUNC 0x0040
928	#define V4L2_FMT_FLAG_CSC_YCBCR_ENC 0x0080
929	#define V4L2_FMT_FLAG_CSC_HSV_ENC V4L2_FMT_FLAG_CSC_YCBCR_ENC
930	#define V4L2_FMT_FLAG_CSC_QUANTIZATION 0x0100
931	#define V4L2_FMT_FLAG_META_LINE_BASED 0x0200
932
933	/ Format description flag, to be ORed with the index /
934	#define V4L2_FMTDESC_FLAG_ENUM_ALL 0x80000000
935
936	/ Frame Size and frame rate enumeration /
937	/*
938	* F R A M E S I Z E E N U M E R A T I O N
939	*/
940	enum v4l2_frmsizetypes {
941	V4L2_FRMSIZE_TYPE_DISCRETE = `1`,
942	V4L2_FRMSIZE_TYPE_CONTINUOUS = `2`,
943	V4L2_FRMSIZE_TYPE_STEPWISE = `3`,
944	};
945
946	struct v4l2_frmsize_discrete {
947	__u32 width; / Frame width [pixel] /
948	__u32 height; / Frame height [pixel] /
949	};
950
951	struct v4l2_frmsize_stepwise {
952	__u32 min_width; / Minimum frame width [pixel] /
953	__u32 max_width; / Maximum frame width [pixel] /
954	__u32 step_width; / Frame width step size [pixel] /
955	__u32 min_height; / Minimum frame height [pixel] /
956	__u32 max_height; / Maximum frame height [pixel] /
957	__u32 step_height; / Frame height step size [pixel] /
958	};
959
960	struct v4l2_frmsizeenum {
961	__u32 index; / Frame size number /
962	__u32 pixel_format; / Pixel format /
963	__u32 type; / Frame size type the device supports. /
964
965	union { / Frame size /
966	struct v4l2_frmsize_discrete discrete;
967	struct v4l2_frmsize_stepwise stepwise;
968	};
969
970	__u32 reserved[`2`]; / Reserved space for future use /
971	};
972
973	/*
974	* F R A M E R A T E E N U M E R A T I O N
975	*/
976	enum v4l2_frmivaltypes {
977	V4L2_FRMIVAL_TYPE_DISCRETE = `1`,
978	V4L2_FRMIVAL_TYPE_CONTINUOUS = `2`,
979	V4L2_FRMIVAL_TYPE_STEPWISE = `3`,
980	};
981
982	struct v4l2_frmival_stepwise {
983	struct v4l2_fract min; / Minimum frame interval [s] /
984	struct v4l2_fract max; / Maximum frame interval [s] /
985	struct v4l2_fract step; / Frame interval step size [s] /
986	};
987
988	struct v4l2_frmivalenum {
989	__u32 index; / Frame format index /
990	__u32 pixel_format; / Pixel format /
991	__u32 width; / Frame width /
992	__u32 height; / Frame height /
993	__u32 type; / Frame interval type the device supports. /
994
995	union { / Frame interval /
996	struct v4l2_fract discrete;
997	struct v4l2_frmival_stepwise stepwise;
998	};
999
1000	__u32 reserved[`2`]; / Reserved space for future use /
1001	};
1002
1003	/*
1004	* T I M E C O D E
1005	*/
1006	struct v4l2_timecode {
1007	__u32 type;
1008	__u32 flags;
1009	__u8 frames;
1010	__u8 seconds;
1011	__u8 minutes;
1012	__u8 hours;
1013	__u8 userbits[`4`];
1014	};
1015
1016	/ Type /
1017	#define V4L2_TC_TYPE_24FPS 1
1018	#define V4L2_TC_TYPE_25FPS 2
1019	#define V4L2_TC_TYPE_30FPS 3
1020	#define V4L2_TC_TYPE_50FPS 4
1021	#define V4L2_TC_TYPE_60FPS 5
1022
1023	/ Flags /
1024	#define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
1025	#define V4L2_TC_FLAG_COLORFRAME 0x0002
1026	#define V4L2_TC_USERBITS_field 0x000C
1027	#define V4L2_TC_USERBITS_USERDEFINED 0x0000
1028	#define V4L2_TC_USERBITS_8BITCHARS 0x0008
1029	/ The above is based on SMPTE timecodes /
1030
1031	struct v4l2_jpegcompression {
1032	int quality;
1033
1034	int APPn; / Number of APP segment to be written,*
1035	* must be 0..15 */
1036	int APP_len; / Length of data in JPEG APPn segment /
1037	char APP_data[`60`]; / Data in the JPEG APPn segment. /
1038
1039	int COM_len; / Length of data in JPEG COM segment /
1040	char COM_data[`60`]; / Data in JPEG COM segment /
1041
1042	__u32 jpeg_markers; / Which markers should go into the JPEG*
1043	* output. Unless you exactly know what
1044	* you do, leave them untouched.
1045	* Including less markers will make the
1046	* resulting code smaller, but there will
1047	* be fewer applications which can read it.
1048	* The presence of the APP and COM marker
1049	* is influenced by APP_len and COM_len
1050	* ONLY, not by this property! */
1051
1052	#define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */
1053	#define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */
1054	#define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */
1055	#define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */
1056	#define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will
1057	* always use APP0 */
1058	};
1059
1060	/*
1061	* M E M O R Y - M A P P I N G B U F F E R S
1062	*/
1063
1064	#ifdef __KERNEL__
1065	/*
1066	* This corresponds to the user space version of timeval
1067	* for 64-bit time_t. sparc64 is different from everyone
1068	* else, using the microseconds in the wrong half of the
1069	* second 64-bit word.
1070	*/
1071	struct __kernel_v4l2_timeval {
1072	long long tv_sec;
1073	#if defined(__sparc__) && defined(__arch64__)
1074	int tv_usec;
1075	int __pad;
1076	#else
1077	long long tv_usec;
1078	#endif
1079	};
1080	#endif
1081
1082	struct v4l2_requestbuffers {
1083	__u32 count;
1084	__u32 type; / enum v4l2_buf_type /
1085	__u32 memory; / enum v4l2_memory /
1086	__u32 capabilities;
1087	__u8 flags;
1088	__u8 reserved[`3`];
1089	};
1090
1091	#define V4L2_MEMORY_FLAG_NON_COHERENT (1 << 0)
1092
1093	/ capabilities for struct v4l2_requestbuffers and v4l2_create_buffers /
1094	#define V4L2_BUF_CAP_SUPPORTS_MMAP (1 << 0)
1095	#define V4L2_BUF_CAP_SUPPORTS_USERPTR (1 << 1)
1096	#define V4L2_BUF_CAP_SUPPORTS_DMABUF (1 << 2)
1097	#define V4L2_BUF_CAP_SUPPORTS_REQUESTS (1 << 3)
1098	#define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
1099	#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
1100	#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
1101	#define V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS (1 << 7)
1102	#define V4L2_BUF_CAP_SUPPORTS_REMOVE_BUFS (1 << 8)
1103
1104	/**
1105	* struct v4l2_plane - plane info for multi-planar buffers
1106	* @bytesused: number of bytes occupied by data in the plane (payload)
1107	* @length: size of this plane (NOT the payload) in bytes
1108	* @m.mem_offset: when memory in the associated struct v4l2_buffer is
1109	* V4L2_MEMORY_MMAP, equals the offset from the start of
1110	* the device memory for this plane (or is a "cookie" that
1111	* should be passed to mmap() called on the video node)
1112	* @m.userptr: when memory is V4L2_MEMORY_USERPTR, a userspace pointer
1113	* pointing to this plane
1114	* @m.fd: when memory is V4L2_MEMORY_DMABUF, a userspace file
1115	* descriptor associated with this plane
1116	* @m: union of @mem_offset, @userptr and @fd
1117	* @data_offset: offset in the plane to the start of data; usually 0,
1118	* unless there is a header in front of the data
1119	* @reserved: drivers and applications must zero this array
1120	*
1121	* Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
1122	* with two planes can have one plane for Y, and another for interleaved CbCr
1123	* components. Each plane can reside in a separate memory buffer, or even in
1124	* a completely separate memory node (e.g. in embedded devices).
1125	*/
1126	struct v4l2_plane {
1127	__u32 bytesused;
1128	__u32 length;
1129	union {
1130	__u32 mem_offset;
1131	unsigned long userptr;
1132	__s32 fd;
1133	} m;
1134	__u32 data_offset;
1135	__u32 reserved[`11`];
1136	};
1137
1138	/**
1139	* struct v4l2_buffer - video buffer info
1140	* @index: id number of the buffer
1141	* @type: enum v4l2_buf_type; buffer type (type == *_MPLANE for
1142	* multiplanar buffers);
1143	* @bytesused: number of bytes occupied by data in the buffer (payload);
1144	* unused (set to 0) for multiplanar buffers
1145	* @flags: buffer informational flags
1146	* @field: enum v4l2_field; field order of the image in the buffer
1147	* @timestamp: frame timestamp
1148	* @timecode: frame timecode
1149	* @sequence: sequence count of this frame
1150	* @memory: enum v4l2_memory; the method, in which the actual video data is
1151	* passed
1152	* @m.offset: for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
1153	* offset from the start of the device memory for this plane,
1154	* (or a "cookie" that should be passed to mmap() as offset)
1155	* @m.userptr: for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
1156	* a userspace pointer pointing to this buffer
1157	* @m.fd: for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
1158	* a userspace file descriptor associated with this buffer
1159	* @m.planes: for multiplanar buffers; userspace pointer to the array of plane
1160	* info structs for this buffer
1161	* @m: union of @offset, @userptr, @planes and @fd
1162	* @length: size in bytes of the buffer (NOT its payload) for single-plane
1163	* buffers (when type != *_MPLANE); number of elements in the
1164	* planes array for multi-plane buffers
1165	* @reserved2: drivers and applications must zero this field
1166	* @request_fd: fd of the request that this buffer should use
1167	* @reserved: for backwards compatibility with applications that do not know
1168	* about @request_fd
1169	*
1170	* Contains data exchanged by application and driver using one of the Streaming
1171	* I/O methods.
1172	*/
1173	struct v4l2_buffer {
1174	__u32 index;
1175	__u32 type;
1176	__u32 bytesused;
1177	__u32 flags;
1178	__u32 field;
1179	#ifdef __KERNEL__
1180	struct __kernel_v4l2_timeval timestamp;
1181	#else
1182	struct timeval timestamp;
1183	#endif
1184	struct v4l2_timecode timecode;
1185	__u32 sequence;
1186
1187	/ memory location /
1188	__u32 memory;
1189	union {
1190	__u32 offset;
1191	unsigned long userptr;
1192	struct v4l2_plane *planes;
1193	__s32 fd;
1194	} m;
1195	__u32 length;
1196	__u32 reserved2;
1197	union {
1198	__s32 request_fd;
1199	__u32 reserved;
1200	};
1201	};
1202
1203	#ifndef __KERNEL__
1204	/**
1205	* v4l2_timeval_to_ns - Convert timeval to nanoseconds
1206	* @tv: pointer to the timeval variable to be converted
1207	*
1208	* Returns the scalar nanosecond representation of the timeval
1209	* parameter.
1210	*/
1211	static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv)
1212	{
1213	return (__u64)tv->tv_sec * `1000000000ULL` + tv->tv_usec * `1000`;
1214	}
1215	#endif
1216
1217	/ Flags for 'flags' field /
1218	/ Buffer is mapped (flag) /
1219	#define V4L2_BUF_FLAG_MAPPED 0x00000001
1220	/ Buffer is queued for processing /
1221	#define V4L2_BUF_FLAG_QUEUED 0x00000002
1222	/ Buffer is ready /
1223	#define V4L2_BUF_FLAG_DONE 0x00000004
1224	/ Image is a keyframe (I-frame) /
1225	#define V4L2_BUF_FLAG_KEYFRAME 0x00000008
1226	/ Image is a P-frame /
1227	#define V4L2_BUF_FLAG_PFRAME 0x00000010
1228	/ Image is a B-frame /
1229	#define V4L2_BUF_FLAG_BFRAME 0x00000020
1230	/ Buffer is ready, but the data contained within is corrupted. /
1231	#define V4L2_BUF_FLAG_ERROR 0x00000040
1232	/ Buffer is added to an unqueued request /
1233	#define V4L2_BUF_FLAG_IN_REQUEST 0x00000080
1234	/ timecode field is valid /
1235	#define V4L2_BUF_FLAG_TIMECODE 0x00000100
1236	/ Don't return the capture buffer until OUTPUT timestamp changes /
1237	#define V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF 0x00000200
1238	/ Buffer is prepared for queuing /
1239	#define V4L2_BUF_FLAG_PREPARED 0x00000400
1240	/ Cache handling flags /
1241	#define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE 0x00000800
1242	#define V4L2_BUF_FLAG_NO_CACHE_CLEAN 0x00001000
1243	/ Timestamp type /
1244	#define V4L2_BUF_FLAG_TIMESTAMP_MASK 0x0000e000
1245	#define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN 0x00000000
1246	#define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC 0x00002000
1247	#define V4L2_BUF_FLAG_TIMESTAMP_COPY 0x00004000
1248	/ Timestamp sources. /
1249	#define V4L2_BUF_FLAG_TSTAMP_SRC_MASK 0x00070000
1250	#define V4L2_BUF_FLAG_TSTAMP_SRC_EOF 0x00000000
1251	#define V4L2_BUF_FLAG_TSTAMP_SRC_SOE 0x00010000
1252	/ mem2mem encoder/decoder /
1253	#define V4L2_BUF_FLAG_LAST 0x00100000
1254	/ request_fd is valid /
1255	#define V4L2_BUF_FLAG_REQUEST_FD 0x00800000
1256
1257	/**
1258	* struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
1259	*
1260	* @index: id number of the buffer
1261	* @type: enum v4l2_buf_type; buffer type (type == *_MPLANE for
1262	* multiplanar buffers);
1263	* @plane: index of the plane to be exported, 0 for single plane queues
1264	* @flags: flags for newly created file, currently only O_CLOEXEC is
1265	* supported, refer to manual of open syscall for more details
1266	* @fd: file descriptor associated with DMABUF (set by driver)
1267	* @reserved: drivers and applications must zero this array
1268	*
1269	* Contains data used for exporting a video buffer as DMABUF file descriptor.
1270	* The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
1271	* (identical to the cookie used to mmap() the buffer to userspace). All
1272	* reserved fields must be set to zero. The field reserved0 is expected to
1273	* become a structure 'type' allowing an alternative layout of the structure
1274	* content. Therefore this field should not be used for any other extensions.
1275	*/
1276	struct v4l2_exportbuffer {
1277	__u32 type; / enum v4l2_buf_type /
1278	__u32 index;
1279	__u32 plane;
1280	__u32 flags;
1281	__s32 fd;
1282	__u32 reserved[`11`];
1283	};
1284
1285	/*
1286	* O V E R L A Y P R E V I E W
1287	*/
1288	struct v4l2_framebuffer {
1289	__u32 capability;
1290	__u32 flags;
1291	/ FIXME: in theory we should pass something like PCI device + memory*
1292	* region + offset instead of some physical address */
1293	void *base;
1294	struct {
1295	__u32 width;
1296	__u32 height;
1297	__u32 pixelformat;
1298	__u32 field; / enum v4l2_field /
1299	__u32 bytesperline; / for padding, zero if unused /
1300	__u32 sizeimage;
1301	__u32 colorspace; / enum v4l2_colorspace /
1302	__u32 priv; / reserved field, set to 0 /
1303	} fmt;
1304	};
1305	/ Flags for the 'capability' field. Read only /
1306	#define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
1307	#define V4L2_FBUF_CAP_CHROMAKEY 0x0002
1308	#ifndef __KERNEL__
1309	#define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004
1310	#define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008
1311	#endif
1312	#define V4L2_FBUF_CAP_LOCAL_ALPHA 0x0010
1313	#define V4L2_FBUF_CAP_GLOBAL_ALPHA 0x0020
1314	#define V4L2_FBUF_CAP_LOCAL_INV_ALPHA 0x0040
1315	#define V4L2_FBUF_CAP_SRC_CHROMAKEY 0x0080
1316	/ Flags for the 'flags' field. /
1317	#define V4L2_FBUF_FLAG_PRIMARY 0x0001
1318	#define V4L2_FBUF_FLAG_OVERLAY 0x0002
1319	#define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
1320	#define V4L2_FBUF_FLAG_LOCAL_ALPHA 0x0008
1321	#define V4L2_FBUF_FLAG_GLOBAL_ALPHA 0x0010
1322	#define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA 0x0020
1323	#define V4L2_FBUF_FLAG_SRC_CHROMAKEY 0x0040
1324
1325	struct v4l2_clip {
1326	struct v4l2_rect c;
1327	struct v4l2_clip __user *next;
1328	};
1329
1330	struct v4l2_window {
1331	struct v4l2_rect w;
1332	__u32 field; / enum v4l2_field /
1333	__u32 chromakey;
1334	struct v4l2_clip *clips;
1335	__u32 clipcount;
1336	void __user *bitmap;
1337	__u8 global_alpha;
1338	};
1339
1340	/*
1341	* C A P T U R E P A R A M E T E R S
1342	*/
1343	struct v4l2_captureparm {
1344	__u32 capability; / Supported modes /
1345	__u32 capturemode; / Current mode /
1346	struct v4l2_fract timeperframe; / Time per frame in seconds /
1347	__u32 extendedmode; / Driver-specific extensions /
1348	__u32 readbuffers; / # of buffers for read /
1349	__u32 reserved[`4`];
1350	};
1351
1352	/ Flags for 'capability' and 'capturemode' fields /
1353	#define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */
1354	#define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */
1355
1356	struct v4l2_outputparm {
1357	__u32 capability; / Supported modes /
1358	__u32 outputmode; / Current mode /
1359	struct v4l2_fract timeperframe; / Time per frame in seconds /
1360	__u32 extendedmode; / Driver-specific extensions /
1361	__u32 writebuffers; / # of buffers for write /
1362	__u32 reserved[`4`];
1363	};
1364
1365	/*
1366	* I N P U T I M A G E C R O P P I N G
1367	*/
1368	struct v4l2_cropcap {
1369	__u32 type; / enum v4l2_buf_type /
1370	struct v4l2_rect bounds;
1371	struct v4l2_rect defrect;
1372	struct v4l2_fract pixelaspect;
1373	};
1374
1375	struct v4l2_crop {
1376	__u32 type; / enum v4l2_buf_type /
1377	struct v4l2_rect c;
1378	};
1379
1380	/**
1381	* struct v4l2_selection - selection info
1382	* @type: buffer type (do not use *_MPLANE types)
1383	* @target: Selection target, used to choose one of possible rectangles;
1384	* defined in v4l2-common.h; V4L2_SEL_TGT_* .
1385	* @flags: constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
1386	* @r: coordinates of selection window
1387	* @reserved: for future use, rounds structure size to 64 bytes, set to zero
1388	*
1389	* Hardware may use multiple helper windows to process a video stream.
1390	* The structure is used to exchange this selection areas between
1391	* an application and a driver.
1392	*/
1393	struct v4l2_selection {
1394	__u32 type;
1395	__u32 target;
1396	__u32 flags;
1397	struct v4l2_rect r;
1398	__u32 reserved[`9`];
1399	};
1400
1401
1402	/*
1403	* A N A L O G V I D E O S T A N D A R D
1404	*/
1405
1406	typedef __u64 v4l2_std_id;
1407
1408	/*
1409	* Attention: Keep the V4L2_STD_* bit definitions in sync with
1410	* include/dt-bindings/display/sdtv-standards.h SDTV_STD_* bit definitions.
1411	*/
1412	/ one bit for each /
1413	#define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001)
1414	#define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002)
1415	#define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004)
1416	#define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008)
1417	#define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010)
1418	#define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020)
1419	#define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040)
1420	#define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080)
1421
1422	#define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100)
1423	#define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200)
1424	#define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400)
1425	#define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800)
1426
1427	#define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000) /* BTSC */
1428	#define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000) /* EIA-J */
1429	#define V4L2_STD_NTSC_443 ((v4l2_std_id)0x00004000)
1430	#define V4L2_STD_NTSC_M_KR ((v4l2_std_id)0x00008000) /* FM A2 */
1431
1432	#define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000)
1433	#define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000)
1434	#define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000)
1435	#define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000)
1436	#define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000)
1437	#define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000)
1438	#define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000)
1439	#define V4L2_STD_SECAM_LC ((v4l2_std_id)0x00800000)
1440
1441	/ ATSC/HDTV /
1442	#define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000)
1443	#define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000)
1444
1445	/ FIXME:*
1446	Although std_id is 64 bits, there is an issue on PPC32 architecture that
1447	makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
1448	this value to 32 bits.
1449	As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
1450	it should work fine. However, if needed to add more than two standards,
1451	v4l2-common.c should be fixed.
1452	*/
1453
1454	/*
1455	* Some macros to merge video standards in order to make live easier for the
1456	* drivers and V4L2 applications
1457	*/
1458
1459	/*
1460	* "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
1461	* Missing here.
1462	*/
1463	#define V4L2_STD_NTSC (V4L2_STD_NTSC_M \|\
1464	V4L2_STD_NTSC_M_JP \|\
1465	V4L2_STD_NTSC_M_KR)
1466	/ Secam macros /
1467	#define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D \|\
1468	V4L2_STD_SECAM_K \|\
1469	V4L2_STD_SECAM_K1)
1470	/ All Secam Standards /
1471	#define V4L2_STD_SECAM (V4L2_STD_SECAM_B \|\
1472	V4L2_STD_SECAM_G \|\
1473	V4L2_STD_SECAM_H \|\
1474	V4L2_STD_SECAM_DK \|\
1475	V4L2_STD_SECAM_L \|\
1476	V4L2_STD_SECAM_LC)
1477	/ PAL macros /
1478	#define V4L2_STD_PAL_BG (V4L2_STD_PAL_B \|\
1479	V4L2_STD_PAL_B1 \|\
1480	V4L2_STD_PAL_G)
1481	#define V4L2_STD_PAL_DK (V4L2_STD_PAL_D \|\
1482	V4L2_STD_PAL_D1 \|\
1483	V4L2_STD_PAL_K)
1484	/*
1485	* "Common" PAL - This macro is there to be compatible with the old
1486	* V4L1 concept of "PAL": /BGDKHI.
1487	* Several PAL standards are missing here: /M, /N and /Nc
1488	*/
1489	#define V4L2_STD_PAL (V4L2_STD_PAL_BG \|\
1490	V4L2_STD_PAL_DK \|\
1491	V4L2_STD_PAL_H \|\
1492	V4L2_STD_PAL_I)
1493	/ Chroma "agnostic" standards /
1494	#define V4L2_STD_B (V4L2_STD_PAL_B \|\
1495	V4L2_STD_PAL_B1 \|\
1496	V4L2_STD_SECAM_B)
1497	#define V4L2_STD_G (V4L2_STD_PAL_G \|\
1498	V4L2_STD_SECAM_G)
1499	#define V4L2_STD_H (V4L2_STD_PAL_H \|\
1500	V4L2_STD_SECAM_H)
1501	#define V4L2_STD_L (V4L2_STD_SECAM_L \|\
1502	V4L2_STD_SECAM_LC)
1503	#define V4L2_STD_GH (V4L2_STD_G \|\
1504	V4L2_STD_H)
1505	#define V4L2_STD_DK (V4L2_STD_PAL_DK \|\
1506	V4L2_STD_SECAM_DK)
1507	#define V4L2_STD_BG (V4L2_STD_B \|\
1508	V4L2_STD_G)
1509	#define V4L2_STD_MN (V4L2_STD_PAL_M \|\
1510	V4L2_STD_PAL_N \|\
1511	V4L2_STD_PAL_Nc \|\
1512	V4L2_STD_NTSC)
1513
1514	/ Standards where MTS/BTSC stereo could be found /
1515	#define V4L2_STD_MTS (V4L2_STD_NTSC_M \|\
1516	V4L2_STD_PAL_M \|\
1517	V4L2_STD_PAL_N \|\
1518	V4L2_STD_PAL_Nc)
1519
1520	/ Standards for Countries with 60Hz Line frequency /
1521	#define V4L2_STD_525_60 (V4L2_STD_PAL_M \|\
1522	V4L2_STD_PAL_60 \|\
1523	V4L2_STD_NTSC \|\
1524	V4L2_STD_NTSC_443)
1525	/ Standards for Countries with 50Hz Line frequency /
1526	#define V4L2_STD_625_50 (V4L2_STD_PAL \|\
1527	V4L2_STD_PAL_N \|\
1528	V4L2_STD_PAL_Nc \|\
1529	V4L2_STD_SECAM)
1530
1531	#define V4L2_STD_ATSC (V4L2_STD_ATSC_8_VSB \|\
1532	V4L2_STD_ATSC_16_VSB)
1533	/ Macros with none and all analog standards /
1534	#define V4L2_STD_UNKNOWN 0
1535	#define V4L2_STD_ALL (V4L2_STD_525_60 \|\
1536	V4L2_STD_625_50)
1537
1538	struct v4l2_standard {
1539	__u32 index;
1540	v4l2_std_id id;
1541	__u8 name[`24`];
1542	struct v4l2_fract frameperiod; / Frames, not fields /
1543	__u32 framelines;
1544	__u32 reserved[`4`];
1545	};
1546
1547	/*
1548	* D V B T T I M I N G S
1549	*/
1550
1551	/* struct v4l2_bt_timings - BT.656/BT.1120 timing data*
1552	* @width: total width of the active video in pixels
1553	* @height: total height of the active video in lines
1554	* @interlaced: Interlaced or progressive
1555	* @polarities: Positive or negative polarities
1556	* @pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
1557	* @hfrontporch:Horizontal front porch in pixels
1558	* @hsync: Horizontal Sync length in pixels
1559	* @hbackporch: Horizontal back porch in pixels
1560	* @vfrontporch:Vertical front porch in lines
1561	* @vsync: Vertical Sync length in lines
1562	* @vbackporch: Vertical back porch in lines
1563	* @il_vfrontporch:Vertical front porch for the even field
1564	* (aka field 2) of interlaced field formats
1565	* @il_vsync: Vertical Sync length for the even field
1566	* (aka field 2) of interlaced field formats
1567	* @il_vbackporch:Vertical back porch for the even field
1568	* (aka field 2) of interlaced field formats
1569	* @standards: Standards the timing belongs to
1570	* @flags: Flags
1571	* @picture_aspect: The picture aspect ratio (hor/vert).
1572	* @cea861_vic: VIC code as per the CEA-861 standard.
1573	* @hdmi_vic: VIC code as per the HDMI standard.
1574	* @reserved: Reserved fields, must be zeroed.
1575	*
1576	* A note regarding vertical interlaced timings: height refers to the total
1577	* height of the active video frame (= two fields). The blanking timings refer
1578	* to the blanking of each field. So the height of the total frame is
1579	* calculated as follows:
1580	*
1581	* tot_height = height + vfrontporch + vsync + vbackporch +
1582	* il_vfrontporch + il_vsync + il_vbackporch
1583	*
1584	* The active height of each field is height / 2.
1585	*/
1586	struct v4l2_bt_timings {
1587	__u32 width;
1588	__u32 height;
1589	__u32 interlaced;
1590	__u32 polarities;
1591	__u64 pixelclock;
1592	__u32 hfrontporch;
1593	__u32 hsync;
1594	__u32 hbackporch;
1595	__u32 vfrontporch;
1596	__u32 vsync;
1597	__u32 vbackporch;
1598	__u32 il_vfrontporch;
1599	__u32 il_vsync;
1600	__u32 il_vbackporch;
1601	__u32 standards;
1602	__u32 flags;
1603	struct v4l2_fract picture_aspect;
1604	__u8 cea861_vic;
1605	__u8 hdmi_vic;
1606	__u8 reserved[`46`];
1607	} __attribute__ ((packed));
1608
1609	/ Interlaced or progressive format /
1610	#define V4L2_DV_PROGRESSIVE 0
1611	#define V4L2_DV_INTERLACED 1
1612
1613	/ Polarities. If bit is not set, it is assumed to be negative polarity /
1614	#define V4L2_DV_VSYNC_POS_POL 0x00000001
1615	#define V4L2_DV_HSYNC_POS_POL 0x00000002
1616
1617	/ Timings standards /
1618	#define V4L2_DV_BT_STD_CEA861 (1 << 0) /* CEA-861 Digital TV Profile */
1619	#define V4L2_DV_BT_STD_DMT (1 << 1) /* VESA Discrete Monitor Timings */
1620	#define V4L2_DV_BT_STD_CVT (1 << 2) /* VESA Coordinated Video Timings */
1621	#define V4L2_DV_BT_STD_GTF (1 << 3) /* VESA Generalized Timings Formula */
1622	#define V4L2_DV_BT_STD_SDI (1 << 4) /* SDI Timings */
1623
1624	/ Flags /
1625
1626	/*
1627	* CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
1628	* GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
1629	* intervals are reduced, allowing a higher resolution over the same
1630	* bandwidth. This is a read-only flag.
1631	*/
1632	#define V4L2_DV_FL_REDUCED_BLANKING (1 << 0)
1633	/*
1634	* CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
1635	* of six. These formats can be optionally played at 1 / 1.001 speed.
1636	* This is a read-only flag.
1637	*/
1638	#define V4L2_DV_FL_CAN_REDUCE_FPS (1 << 1)
1639	/*
1640	* CEA-861 specific: only valid for video transmitters, the flag is cleared
1641	* by receivers.
1642	* If the framerate of the format is a multiple of six, then the pixelclock
1643	* used to set up the transmitter is divided by 1.001 to make it compatible
1644	* with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
1645	* 29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
1646	* such frequencies, then the flag will also be cleared.
1647	*/
1648	#define V4L2_DV_FL_REDUCED_FPS (1 << 2)
1649	/*
1650	* Specific to interlaced formats: if set, then field 1 is really one half-line
1651	* longer and field 2 is really one half-line shorter, so each field has
1652	* exactly the same number of half-lines. Whether half-lines can be detected
1653	* or used depends on the hardware.
1654	*/
1655	#define V4L2_DV_FL_HALF_LINE (1 << 3)
1656	/*
1657	* If set, then this is a Consumer Electronics (CE) video format. Such formats
1658	* differ from other formats (commonly called IT formats) in that if RGB
1659	* encoding is used then by default the RGB values use limited range (i.e.
1660	* use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
1661	* except for the 640x480 format are CE formats.
1662	*/
1663	#define V4L2_DV_FL_IS_CE_VIDEO (1 << 4)
1664	/ Some formats like SMPTE-125M have an interlaced signal with a odd*
1665	* total height. For these formats, if this flag is set, the first
1666	* field has the extra line. If not, it is the second field.
1667	*/
1668	#define V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE (1 << 5)
1669	/*
1670	* If set, then the picture_aspect field is valid. Otherwise assume that the
1671	* pixels are square, so the picture aspect ratio is the same as the width to
1672	* height ratio.
1673	*/
1674	#define V4L2_DV_FL_HAS_PICTURE_ASPECT (1 << 6)
1675	/*
1676	* If set, then the cea861_vic field is valid and contains the Video
1677	* Identification Code as per the CEA-861 standard.
1678	*/
1679	#define V4L2_DV_FL_HAS_CEA861_VIC (1 << 7)
1680	/*
1681	* If set, then the hdmi_vic field is valid and contains the Video
1682	* Identification Code as per the HDMI standard (HDMI Vendor Specific
1683	* InfoFrame).
1684	*/
1685	#define V4L2_DV_FL_HAS_HDMI_VIC (1 << 8)
1686	/*
1687	* CEA-861 specific: only valid for video receivers.
1688	* If set, then HW can detect the difference between regular FPS and
1689	* 1000/1001 FPS. Note: This flag is only valid for HDMI VIC codes with
1690	* the V4L2_DV_FL_CAN_REDUCE_FPS flag set.
1691	*/
1692	#define V4L2_DV_FL_CAN_DETECT_REDUCED_FPS (1 << 9)
1693
1694	/ A few useful defines to calculate the total blanking and frame sizes /
1695	#define V4L2_DV_BT_BLANKING_WIDTH(bt) \
1696	((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
1697	#define V4L2_DV_BT_FRAME_WIDTH(bt) \
1698	((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
1699	#define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
1700	((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
1701	((bt)->interlaced ? \
1702	((bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch) : 0))
1703	#define V4L2_DV_BT_FRAME_HEIGHT(bt) \
1704	((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
1705
1706	/* struct v4l2_dv_timings - DV timings*
1707	* @type: the type of the timings
1708	* @bt: BT656/1120 timings
1709	*/
1710	struct v4l2_dv_timings {
1711	__u32 type;
1712	union {
1713	struct v4l2_bt_timings bt;
1714	__u32 reserved[`32`];
1715	};
1716	} __attribute__ ((packed));
1717
1718	/ Values for the type field /
1719	#define V4L2_DV_BT_656_1120 0 /* BT.656/1120 timing type */
1720
1721
1722	/* struct v4l2_enum_dv_timings - DV timings enumeration*
1723	* @index: enumeration index
1724	* @pad: the pad number for which to enumerate timings (used with
1725	* v4l-subdev nodes only)
1726	* @reserved: must be zeroed
1727	* @timings: the timings for the given index
1728	*/
1729	struct v4l2_enum_dv_timings {
1730	__u32 index;
1731	__u32 pad;
1732	__u32 reserved[`2`];
1733	struct v4l2_dv_timings timings;
1734	};
1735
1736	/* struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities*
1737	* @min_width: width in pixels
1738	* @max_width: width in pixels
1739	* @min_height: height in lines
1740	* @max_height: height in lines
1741	* @min_pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
1742	* @max_pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
1743	* @standards: Supported standards
1744	* @capabilities: Supported capabilities
1745	* @reserved: Must be zeroed
1746	*/
1747	struct v4l2_bt_timings_cap {
1748	__u32 min_width;
1749	__u32 max_width;
1750	__u32 min_height;
1751	__u32 max_height;
1752	__u64 min_pixelclock;
1753	__u64 max_pixelclock;
1754	__u32 standards;
1755	__u32 capabilities;
1756	__u32 reserved[`16`];
1757	} __attribute__ ((packed));
1758
1759	/ Supports interlaced formats /
1760	#define V4L2_DV_BT_CAP_INTERLACED (1 << 0)
1761	/ Supports progressive formats /
1762	#define V4L2_DV_BT_CAP_PROGRESSIVE (1 << 1)
1763	/ Supports CVT/GTF reduced blanking /
1764	#define V4L2_DV_BT_CAP_REDUCED_BLANKING (1 << 2)
1765	/ Supports custom formats /
1766	#define V4L2_DV_BT_CAP_CUSTOM (1 << 3)
1767
1768	/* struct v4l2_dv_timings_cap - DV timings capabilities*
1769	* @type: the type of the timings (same as in struct v4l2_dv_timings)
1770	* @pad: the pad number for which to query capabilities (used with
1771	* v4l-subdev nodes only)
1772	* @bt: the BT656/1120 timings capabilities
1773	*/
1774	struct v4l2_dv_timings_cap {
1775	__u32 type;
1776	__u32 pad;
1777	__u32 reserved[`2`];
1778	union {
1779	struct v4l2_bt_timings_cap bt;
1780	__u32 raw_data[`32`];
1781	};
1782	};
1783
1784
1785	/*
1786	* V I D E O I N P U T S
1787	*/
1788	struct v4l2_input {
1789	__u32 index; / Which input /
1790	__u8 name[`32`]; / Label /
1791	__u32 type; / Type of input /
1792	__u32 audioset; / Associated audios (bitfield) /
1793	__u32 tuner; / Tuner index /
1794	v4l2_std_id std;
1795	__u32 status;
1796	__u32 capabilities;
1797	__u32 reserved[`3`];
1798	};
1799
1800	/ Values for the 'type' field /
1801	#define V4L2_INPUT_TYPE_TUNER 1
1802	#define V4L2_INPUT_TYPE_CAMERA 2
1803	#define V4L2_INPUT_TYPE_TOUCH 3
1804
1805	/ field 'status' - general /
1806	#define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */
1807	#define V4L2_IN_ST_NO_SIGNAL 0x00000002
1808	#define V4L2_IN_ST_NO_COLOR 0x00000004
1809
1810	/ field 'status' - sensor orientation /
1811	/ If sensor is mounted upside down set both bits /
1812	#define V4L2_IN_ST_HFLIP 0x00000010 /* Frames are flipped horizontally */
1813	#define V4L2_IN_ST_VFLIP 0x00000020 /* Frames are flipped vertically */
1814
1815	/ field 'status' - analog /
1816	#define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */
1817	#define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */
1818	#define V4L2_IN_ST_NO_V_LOCK 0x00000400 /* No vertical sync lock */
1819	#define V4L2_IN_ST_NO_STD_LOCK 0x00000800 /* No standard format lock */
1820
1821	/ field 'status' - digital /
1822	#define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */
1823	#define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */
1824	#define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */
1825
1826	/ field 'status' - VCR and set-top box /
1827	#define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */
1828	#define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
1829	#define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
1830
1831	/ capabilities flags /
1832	#define V4L2_IN_CAP_DV_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */
1833	#define V4L2_IN_CAP_CUSTOM_TIMINGS V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
1834	#define V4L2_IN_CAP_STD 0x00000004 /* Supports S_STD */
1835	#define V4L2_IN_CAP_NATIVE_SIZE 0x00000008 /* Supports setting native size */
1836
1837	/*
1838	* V I D E O O U T P U T S
1839	*/
1840	struct v4l2_output {
1841	__u32 index; / Which output /
1842	__u8 name[`32`]; / Label /
1843	__u32 type; / Type of output /
1844	__u32 audioset; / Associated audios (bitfield) /
1845	__u32 modulator; / Associated modulator /
1846	v4l2_std_id std;
1847	__u32 capabilities;
1848	__u32 reserved[`3`];
1849	};
1850	/ Values for the 'type' field /
1851	#define V4L2_OUTPUT_TYPE_MODULATOR 1
1852	#define V4L2_OUTPUT_TYPE_ANALOG 2
1853	#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
1854
1855	/ capabilities flags /
1856	#define V4L2_OUT_CAP_DV_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */
1857	#define V4L2_OUT_CAP_CUSTOM_TIMINGS V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
1858	#define V4L2_OUT_CAP_STD 0x00000004 /* Supports S_STD */
1859	#define V4L2_OUT_CAP_NATIVE_SIZE 0x00000008 /* Supports setting native size */
1860
1861	/*
1862	* C O N T R O L S
1863	*/
1864	struct v4l2_control {
1865	__u32 id;
1866	__s32 value;
1867	};
1868
1869	struct v4l2_ext_control {
1870	__u32 id;
1871	__u32 size;
1872	__u32 reserved2[`1`];
1873	union {
1874	__s32 value;
1875	__s64 value64;
1876	char __user *string;
1877	__u8 __user *p_u8;
1878	__u16 __user *p_u16;
1879	__u32 __user *p_u32;
1880	__s32 __user *p_s32;
1881	__s64 __user *p_s64;
1882	struct v4l2_area __user *p_area;
1883	struct v4l2_rect __user *p_rect;
1884	struct v4l2_ctrl_h264_sps __user *p_h264_sps;
1885	struct v4l2_ctrl_h264_pps __user *p_h264_pps;
1886	struct v4l2_ctrl_h264_scaling_matrix __user *p_h264_scaling_matrix;
1887	struct v4l2_ctrl_h264_pred_weights __user *p_h264_pred_weights;
1888	struct v4l2_ctrl_h264_slice_params __user *p_h264_slice_params;
1889	struct v4l2_ctrl_h264_decode_params __user *p_h264_decode_params;
1890	struct v4l2_ctrl_fwht_params __user *p_fwht_params;
1891	struct v4l2_ctrl_vp8_frame __user *p_vp8_frame;
1892	struct v4l2_ctrl_mpeg2_sequence __user *p_mpeg2_sequence;
1893	struct v4l2_ctrl_mpeg2_picture __user *p_mpeg2_picture;
1894	struct v4l2_ctrl_mpeg2_quantisation __user *p_mpeg2_quantisation;
1895	struct v4l2_ctrl_vp9_compressed_hdr __user *p_vp9_compressed_hdr_probs;
1896	struct v4l2_ctrl_vp9_frame __user *p_vp9_frame;
1897	struct v4l2_ctrl_hevc_sps __user *p_hevc_sps;
1898	struct v4l2_ctrl_hevc_pps __user *p_hevc_pps;
1899	struct v4l2_ctrl_hevc_slice_params __user *p_hevc_slice_params;
1900	struct v4l2_ctrl_hevc_scaling_matrix __user *p_hevc_scaling_matrix;
1901	struct v4l2_ctrl_hevc_decode_params __user *p_hevc_decode_params;
1902	struct v4l2_ctrl_av1_sequence __user *p_av1_sequence;
1903	struct v4l2_ctrl_av1_tile_group_entry __user *p_av1_tile_group_entry;
1904	struct v4l2_ctrl_av1_frame __user *p_av1_frame;
1905	struct v4l2_ctrl_av1_film_grain __user *p_av1_film_grain;
1906	struct v4l2_ctrl_hdr10_cll_info __user *p_hdr10_cll_info;
1907	struct v4l2_ctrl_hdr10_mastering_display __user *p_hdr10_mastering_display;
1908	void __user *ptr;
1909	} __attribute__ ((packed));
1910	} __attribute__ ((packed));
1911
1912	struct v4l2_ext_controls {
1913	union {
1914	#ifndef __KERNEL__
1915	__u32 ctrl_class;
1916	#endif
1917	__u32 which;
1918	};
1919	__u32 count;
1920	__u32 error_idx;
1921	__s32 request_fd;
1922	__u32 reserved[`1`];
1923	struct v4l2_ext_control *controls;
1924	};
1925
1926	#define V4L2_CTRL_ID_MASK (0x0fffffff)
1927	#ifndef __KERNEL__
1928	#define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL)
1929	#endif
1930	#define V4L2_CTRL_ID2WHICH(id) ((id) & 0x0fff0000UL)
1931	#define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
1932	#define V4L2_CTRL_MAX_DIMS (4)
1933	#define V4L2_CTRL_WHICH_CUR_VAL 0
1934	#define V4L2_CTRL_WHICH_DEF_VAL 0x0f000000
1935	#define V4L2_CTRL_WHICH_REQUEST_VAL 0x0f010000
1936	#define V4L2_CTRL_WHICH_MIN_VAL 0x0f020000
1937	#define V4L2_CTRL_WHICH_MAX_VAL 0x0f030000
1938
1939	enum v4l2_ctrl_type {
1940	V4L2_CTRL_TYPE_INTEGER = `1`,
1941	V4L2_CTRL_TYPE_BOOLEAN = `2`,
1942	V4L2_CTRL_TYPE_MENU = `3`,
1943	V4L2_CTRL_TYPE_BUTTON = `4`,
1944	V4L2_CTRL_TYPE_INTEGER64 = `5`,
1945	V4L2_CTRL_TYPE_CTRL_CLASS = `6`,
1946	V4L2_CTRL_TYPE_STRING = `7`,
1947	V4L2_CTRL_TYPE_BITMASK = `8`,
1948	V4L2_CTRL_TYPE_INTEGER_MENU = `9`,
1949
1950	/ Compound types are >= 0x0100 /
1951	V4L2_CTRL_COMPOUND_TYPES = `0x0100`,
1952	V4L2_CTRL_TYPE_U8 = `0x0100`,
1953	V4L2_CTRL_TYPE_U16 = `0x0101`,
1954	V4L2_CTRL_TYPE_U32 = `0x0102`,
1955	V4L2_CTRL_TYPE_AREA = `0x0106`,
1956	V4L2_CTRL_TYPE_RECT = `0x0107`,
1957
1958	V4L2_CTRL_TYPE_HDR10_CLL_INFO = `0x0110`,
1959	V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY = `0x0111`,
1960
1961	V4L2_CTRL_TYPE_H264_SPS = `0x0200`,
1962	V4L2_CTRL_TYPE_H264_PPS = `0x0201`,
1963	V4L2_CTRL_TYPE_H264_SCALING_MATRIX = `0x0202`,
1964	V4L2_CTRL_TYPE_H264_SLICE_PARAMS = `0x0203`,
1965	V4L2_CTRL_TYPE_H264_DECODE_PARAMS = `0x0204`,
1966	V4L2_CTRL_TYPE_H264_PRED_WEIGHTS = `0x0205`,
1967
1968	V4L2_CTRL_TYPE_FWHT_PARAMS = `0x0220`,
1969
1970	V4L2_CTRL_TYPE_VP8_FRAME = `0x0240`,
1971
1972	V4L2_CTRL_TYPE_MPEG2_QUANTISATION = `0x0250`,
1973	V4L2_CTRL_TYPE_MPEG2_SEQUENCE = `0x0251`,
1974	V4L2_CTRL_TYPE_MPEG2_PICTURE = `0x0252`,
1975
1976	V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR = `0x0260`,
1977	V4L2_CTRL_TYPE_VP9_FRAME = `0x0261`,
1978
1979	V4L2_CTRL_TYPE_HEVC_SPS = `0x0270`,
1980	V4L2_CTRL_TYPE_HEVC_PPS = `0x0271`,
1981	V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS = `0x0272`,
1982	V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX = `0x0273`,
1983	V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS = `0x0274`,
1984
1985	V4L2_CTRL_TYPE_AV1_SEQUENCE = `0x280`,
1986	V4L2_CTRL_TYPE_AV1_TILE_GROUP_ENTRY = `0x281`,
1987	V4L2_CTRL_TYPE_AV1_FRAME = `0x282`,
1988	V4L2_CTRL_TYPE_AV1_FILM_GRAIN = `0x283`,
1989	};
1990
1991	/ Used in the VIDIOC_QUERYCTRL ioctl for querying controls /
1992	struct v4l2_queryctrl {
1993	__u32 id;
1994	__u32 type; / enum v4l2_ctrl_type /
1995	__u8 name[`32`]; / Whatever /
1996	__s32 minimum; / Note signedness /
1997	__s32 maximum;
1998	__s32 step;
1999	__s32 default_value;
2000	__u32 flags;
2001	__u32 reserved[`2`];
2002	};
2003
2004	/ Used in the VIDIOC_QUERY_EXT_CTRL ioctl for querying extended controls /
2005	struct v4l2_query_ext_ctrl {
2006	__u32 id;
2007	__u32 type;
2008	char name[`32`];
2009	__s64 minimum;
2010	__s64 maximum;
2011	__u64 step;
2012	__s64 default_value;
2013	__u32 flags;
2014	__u32 elem_size;
2015	__u32 elems;
2016	__u32 nr_of_dims;
2017	__u32 dims[V4L2_CTRL_MAX_DIMS];
2018	__u32 reserved[`32`];
2019	};
2020
2021	/ Used in the VIDIOC_QUERYMENU ioctl for querying menu items /
2022	struct v4l2_querymenu {
2023	__u32 id;
2024	__u32 index;
2025	union {
2026	__u8 name[`32`]; / Whatever /
2027	__s64 value;
2028	};
2029	__u32 reserved;
2030	} __attribute__ ((packed));
2031
2032	/ Control flags /
2033	#define V4L2_CTRL_FLAG_DISABLED 0x0001
2034	#define V4L2_CTRL_FLAG_GRABBED 0x0002
2035	#define V4L2_CTRL_FLAG_READ_ONLY 0x0004
2036	#define V4L2_CTRL_FLAG_UPDATE 0x0008
2037	#define V4L2_CTRL_FLAG_INACTIVE 0x0010
2038	#define V4L2_CTRL_FLAG_SLIDER 0x0020
2039	#define V4L2_CTRL_FLAG_WRITE_ONLY 0x0040
2040	#define V4L2_CTRL_FLAG_VOLATILE 0x0080
2041	#define V4L2_CTRL_FLAG_HAS_PAYLOAD 0x0100
2042	#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200
2043	#define V4L2_CTRL_FLAG_MODIFY_LAYOUT 0x0400
2044	#define V4L2_CTRL_FLAG_DYNAMIC_ARRAY 0x0800
2045	#define V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX 0x1000
2046
2047	/ Query flags, to be ORed with the control ID /
2048	#define V4L2_CTRL_FLAG_NEXT_CTRL 0x80000000
2049	#define V4L2_CTRL_FLAG_NEXT_COMPOUND 0x40000000
2050
2051	/ User-class control IDs defined by V4L2 /
2052	#define V4L2_CID_MAX_CTRLS 1024
2053	/ IDs reserved for driver specific controls /
2054	#define V4L2_CID_PRIVATE_BASE 0x08000000
2055
2056
2057	/*
2058	* T U N I N G
2059	*/
2060	struct v4l2_tuner {
2061	__u32 index;
2062	__u8 name[`32`];
2063	__u32 type; / enum v4l2_tuner_type /
2064	__u32 capability;
2065	__u32 rangelow;
2066	__u32 rangehigh;
2067	__u32 rxsubchans;
2068	__u32 audmode;
2069	__s32 signal;
2070	__s32 afc;
2071	__u32 reserved[`4`];
2072	};
2073
2074	struct v4l2_modulator {
2075	__u32 index;
2076	__u8 name[`32`];
2077	__u32 capability;
2078	__u32 rangelow;
2079	__u32 rangehigh;
2080	__u32 txsubchans;
2081	__u32 type; / enum v4l2_tuner_type /
2082	__u32 reserved[`3`];
2083	};
2084
2085	/ Flags for the 'capability' field /
2086	#define V4L2_TUNER_CAP_LOW 0x0001
2087	#define V4L2_TUNER_CAP_NORM 0x0002
2088	#define V4L2_TUNER_CAP_HWSEEK_BOUNDED 0x0004
2089	#define V4L2_TUNER_CAP_HWSEEK_WRAP 0x0008
2090	#define V4L2_TUNER_CAP_STEREO 0x0010
2091	#define V4L2_TUNER_CAP_LANG2 0x0020
2092	#define V4L2_TUNER_CAP_SAP 0x0020
2093	#define V4L2_TUNER_CAP_LANG1 0x0040
2094	#define V4L2_TUNER_CAP_RDS 0x0080
2095	#define V4L2_TUNER_CAP_RDS_BLOCK_IO 0x0100
2096	#define V4L2_TUNER_CAP_RDS_CONTROLS 0x0200
2097	#define V4L2_TUNER_CAP_FREQ_BANDS 0x0400
2098	#define V4L2_TUNER_CAP_HWSEEK_PROG_LIM 0x0800
2099	#define V4L2_TUNER_CAP_1HZ 0x1000
2100
2101	/ Flags for the 'rxsubchans' field /
2102	#define V4L2_TUNER_SUB_MONO 0x0001
2103	#define V4L2_TUNER_SUB_STEREO 0x0002
2104	#define V4L2_TUNER_SUB_LANG2 0x0004
2105	#define V4L2_TUNER_SUB_SAP 0x0004
2106	#define V4L2_TUNER_SUB_LANG1 0x0008
2107	#define V4L2_TUNER_SUB_RDS 0x0010
2108
2109	/ Values for the 'audmode' field /
2110	#define V4L2_TUNER_MODE_MONO 0x0000
2111	#define V4L2_TUNER_MODE_STEREO 0x0001
2112	#define V4L2_TUNER_MODE_LANG2 0x0002
2113	#define V4L2_TUNER_MODE_SAP 0x0002
2114	#define V4L2_TUNER_MODE_LANG1 0x0003
2115	#define V4L2_TUNER_MODE_LANG1_LANG2 0x0004
2116
2117	struct v4l2_frequency {
2118	__u32 tuner;
2119	__u32 type; / enum v4l2_tuner_type /
2120	__u32 frequency;
2121	__u32 reserved[`8`];
2122	};
2123
2124	#define V4L2_BAND_MODULATION_VSB (1 << 1)
2125	#define V4L2_BAND_MODULATION_FM (1 << 2)
2126	#define V4L2_BAND_MODULATION_AM (1 << 3)
2127
2128	struct v4l2_frequency_band {
2129	__u32 tuner;
2130	__u32 type; / enum v4l2_tuner_type /
2131	__u32 index;
2132	__u32 capability;
2133	__u32 rangelow;
2134	__u32 rangehigh;
2135	__u32 modulation;
2136	__u32 reserved[`9`];
2137	};
2138
2139	struct v4l2_hw_freq_seek {
2140	__u32 tuner;
2141	__u32 type; / enum v4l2_tuner_type /
2142	__u32 seek_upward;
2143	__u32 wrap_around;
2144	__u32 spacing;
2145	__u32 rangelow;
2146	__u32 rangehigh;
2147	__u32 reserved[`5`];
2148	};
2149
2150	/*
2151	* R D S
2152	*/
2153
2154	struct v4l2_rds_data {
2155	__u8 lsb;
2156	__u8 msb;
2157	__u8 block;
2158	} __attribute__ ((packed));
2159
2160	#define V4L2_RDS_BLOCK_MSK 0x7
2161	#define V4L2_RDS_BLOCK_A 0
2162	#define V4L2_RDS_BLOCK_B 1
2163	#define V4L2_RDS_BLOCK_C 2
2164	#define V4L2_RDS_BLOCK_D 3
2165	#define V4L2_RDS_BLOCK_C_ALT 4
2166	#define V4L2_RDS_BLOCK_INVALID 7
2167
2168	#define V4L2_RDS_BLOCK_CORRECTED 0x40
2169	#define V4L2_RDS_BLOCK_ERROR 0x80
2170
2171	/*
2172	* A U D I O
2173	*/
2174	struct v4l2_audio {
2175	__u32 index;
2176	__u8 name[`32`];
2177	__u32 capability;
2178	__u32 mode;
2179	__u32 reserved[`2`];
2180	};
2181
2182	/ Flags for the 'capability' field /
2183	#define V4L2_AUDCAP_STEREO 0x00001
2184	#define V4L2_AUDCAP_AVL 0x00002
2185
2186	/ Flags for the 'mode' field /
2187	#define V4L2_AUDMODE_AVL 0x00001
2188
2189	struct v4l2_audioout {
2190	__u32 index;
2191	__u8 name[`32`];
2192	__u32 capability;
2193	__u32 mode;
2194	__u32 reserved[`2`];
2195	};
2196
2197	/*
2198	* M P E G S E R V I C E S
2199	*/
2200	#if 1
2201	#define V4L2_ENC_IDX_FRAME_I (0)
2202	#define V4L2_ENC_IDX_FRAME_P (1)
2203	#define V4L2_ENC_IDX_FRAME_B (2)
2204	#define V4L2_ENC_IDX_FRAME_MASK (0xf)
2205
2206	struct v4l2_enc_idx_entry {
2207	__u64 offset;
2208	__u64 pts;
2209	__u32 length;
2210	__u32 flags;
2211	__u32 reserved[`2`];
2212	};
2213
2214	#define V4L2_ENC_IDX_ENTRIES (64)
2215	struct v4l2_enc_idx {
2216	__u32 entries;
2217	__u32 entries_cap;
2218	__u32 reserved[`4`];
2219	struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
2220	};
2221
2222
2223	#define V4L2_ENC_CMD_START (0)
2224	#define V4L2_ENC_CMD_STOP (1)
2225	#define V4L2_ENC_CMD_PAUSE (2)
2226	#define V4L2_ENC_CMD_RESUME (3)
2227
2228	/ Flags for V4L2_ENC_CMD_STOP /
2229	#define V4L2_ENC_CMD_STOP_AT_GOP_END (1 << 0)
2230
2231	struct v4l2_encoder_cmd {
2232	__u32 cmd;
2233	__u32 flags;
2234	union {
2235	struct {
2236	__u32 data[`8`];
2237	} raw;
2238	};
2239	};
2240
2241	/ Decoder commands /
2242	#define V4L2_DEC_CMD_START (0)
2243	#define V4L2_DEC_CMD_STOP (1)
2244	#define V4L2_DEC_CMD_PAUSE (2)
2245	#define V4L2_DEC_CMD_RESUME (3)
2246	#define V4L2_DEC_CMD_FLUSH (4)
2247
2248	/ Flags for V4L2_DEC_CMD_START /
2249	#define V4L2_DEC_CMD_START_MUTE_AUDIO (1 << 0)
2250
2251	/ Flags for V4L2_DEC_CMD_PAUSE /
2252	#define V4L2_DEC_CMD_PAUSE_TO_BLACK (1 << 0)
2253
2254	/ Flags for V4L2_DEC_CMD_STOP /
2255	#define V4L2_DEC_CMD_STOP_TO_BLACK (1 << 0)
2256	#define V4L2_DEC_CMD_STOP_IMMEDIATELY (1 << 1)
2257
2258	/ Play format requirements (returned by the driver): /
2259
2260	/ The decoder has no special format requirements /
2261	#define V4L2_DEC_START_FMT_NONE (0)
2262	/ The decoder requires full GOPs /
2263	#define V4L2_DEC_START_FMT_GOP (1)
2264
2265	/ The structure must be zeroed before use by the application*
2266	This ensures it can be extended safely in the future. /*
2267	struct v4l2_decoder_cmd {
2268	__u32 cmd;
2269	__u32 flags;
2270	union {
2271	struct {
2272	__u64 pts;
2273	} stop;
2274
2275	struct {
2276	/ 0 or 1000 specifies normal speed,*
2277	1 specifies forward single stepping,
2278	-1 specifies backward single stepping,
2279	>1: playback at speed/1000 of the normal speed,
2280	<-1: reverse playback at (-speed/1000) of the normal speed. /*
2281	__s32 speed;
2282	__u32 format;
2283	} start;
2284
2285	struct {
2286	__u32 data[`16`];
2287	} raw;
2288	};
2289	};
2290	#endif
2291
2292
2293	/*
2294	* D A T A S E R V I C E S ( V B I )
2295	*
2296	* Data services API by Michael Schimek
2297	*/
2298
2299	/ Raw VBI /
2300	struct v4l2_vbi_format {
2301	__u32 sampling_rate; / in 1 Hz /
2302	__u32 offset;
2303	__u32 samples_per_line;
2304	__u32 sample_format; / V4L2_PIX_FMT_* /
2305	__s32 start[`2`];
2306	__u32 count[`2`];
2307	__u32 flags; / V4L2_VBI_* /
2308	__u32 reserved[`2`]; / must be zero /
2309	};
2310
2311	/ VBI flags /
2312	#define V4L2_VBI_UNSYNC (1 << 0)
2313	#define V4L2_VBI_INTERLACED (1 << 1)
2314
2315	/ ITU-R start lines for each field /
2316	#define V4L2_VBI_ITU_525_F1_START (1)
2317	#define V4L2_VBI_ITU_525_F2_START (264)
2318	#define V4L2_VBI_ITU_625_F1_START (1)
2319	#define V4L2_VBI_ITU_625_F2_START (314)
2320
2321	/ Sliced VBI*
2322	*
2323	* This implements is a proposal V4L2 API to allow SLICED VBI
2324	* required for some hardware encoders. It should change without
2325	* notice in the definitive implementation.
2326	*/
2327
2328	struct v4l2_sliced_vbi_format {
2329	__u16 service_set;
2330	/ service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field*
2331	service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2332	(equals frame lines 313-336 for 625 line video
2333	standards, 263-286 for 525 line standards) /*
2334	__u16 service_lines[`2`][`24`];
2335	__u32 io_size;
2336	__u32 reserved[`2`]; / must be zero /
2337	};
2338
2339	/ Teletext World System Teletext*
2340	(WST), defined on ITU-R BT.653-2 /*
2341	#define V4L2_SLICED_TELETEXT_B (0x0001)
2342	/ Video Program System, defined on ETS 300 231/
2343	#define V4L2_SLICED_VPS (0x0400)
2344	/ Closed Caption, defined on EIA-608 /
2345	#define V4L2_SLICED_CAPTION_525 (0x1000)
2346	/ Wide Screen System, defined on ITU-R BT1119.1 /
2347	#define V4L2_SLICED_WSS_625 (0x4000)
2348
2349	#define V4L2_SLICED_VBI_525 (V4L2_SLICED_CAPTION_525)
2350	#define V4L2_SLICED_VBI_625 (V4L2_SLICED_TELETEXT_B \| V4L2_SLICED_VPS \| V4L2_SLICED_WSS_625)
2351
2352	struct v4l2_sliced_vbi_cap {
2353	__u16 service_set;
2354	/ service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field*
2355	service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2356	(equals frame lines 313-336 for 625 line video
2357	standards, 263-286 for 525 line standards) /*
2358	__u16 service_lines[`2`][`24`];
2359	__u32 type; / enum v4l2_buf_type /
2360	__u32 reserved[`3`]; / must be 0 /
2361	};
2362
2363	struct v4l2_sliced_vbi_data {
2364	__u32 id;
2365	__u32 field; / 0: first field, 1: second field /
2366	__u32 line; / 1-23 /
2367	__u32 reserved; / must be 0 /
2368	__u8 data[`48`];
2369	};
2370
2371	/*
2372	* Sliced VBI data inserted into MPEG Streams
2373	*/
2374
2375	/*
2376	* V4L2_MPEG_STREAM_VBI_FMT_IVTV:
2377	*
2378	* Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
2379	* MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
2380	* data
2381	*
2382	* Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
2383	* definitions are not included here. See the MPEG-2 specifications for details
2384	* on these headers.
2385	*/
2386
2387	/ Line type IDs /
2388	#define V4L2_MPEG_VBI_IVTV_TELETEXT_B (1)
2389	#define V4L2_MPEG_VBI_IVTV_CAPTION_525 (4)
2390	#define V4L2_MPEG_VBI_IVTV_WSS_625 (5)
2391	#define V4L2_MPEG_VBI_IVTV_VPS (7)
2392
2393	struct v4l2_mpeg_vbi_itv0_line {
2394	__u8 id; / One of V4L2_MPEG_VBI_IVTV_* above /
2395	__u8 data[`42`]; / Sliced VBI data for the line /
2396	} __attribute__ ((packed));
2397
2398	struct v4l2_mpeg_vbi_itv0 {
2399	__le32 linemask[`2`]; / Bitmasks of VBI service lines present /
2400	struct v4l2_mpeg_vbi_itv0_line line[`35`];
2401	} __attribute__ ((packed));
2402
2403	struct v4l2_mpeg_vbi_ITV0 {
2404	struct v4l2_mpeg_vbi_itv0_line line[`36`];
2405	} __attribute__ ((packed));
2406
2407	#define V4L2_MPEG_VBI_IVTV_MAGIC0 "itv0"
2408	#define V4L2_MPEG_VBI_IVTV_MAGIC1 "ITV0"
2409
2410	struct v4l2_mpeg_vbi_fmt_ivtv {
2411	__u8 magic[`4`];
2412	union {
2413	struct v4l2_mpeg_vbi_itv0 itv0;
2414	struct v4l2_mpeg_vbi_ITV0 ITV0;
2415	};
2416	} __attribute__ ((packed));
2417
2418	/*
2419	* A G G R E G A T E S T R U C T U R E S
2420	*/
2421
2422	/**
2423	* struct v4l2_plane_pix_format - additional, per-plane format definition
2424	* @sizeimage: maximum size in bytes required for data, for which
2425	* this plane will be used
2426	* @bytesperline: distance in bytes between the leftmost pixels in two
2427	* adjacent lines
2428	* @reserved: drivers and applications must zero this array
2429	*/
2430	struct v4l2_plane_pix_format {
2431	__u32 sizeimage;
2432	__u32 bytesperline;
2433	__u16 reserved[`6`];
2434	} __attribute__ ((packed));
2435
2436	/**
2437	* struct v4l2_pix_format_mplane - multiplanar format definition
2438	* @width: image width in pixels
2439	* @height: image height in pixels
2440	* @pixelformat: little endian four character code (fourcc)
2441	* @field: enum v4l2_field; field order (for interlaced video)
2442	* @colorspace: enum v4l2_colorspace; supplemental to pixelformat
2443	* @plane_fmt: per-plane information
2444	* @num_planes: number of planes for this format
2445	* @flags: format flags (V4L2_PIX_FMT_FLAG_*)
2446	* @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
2447	* @hsv_enc: enum v4l2_hsv_encoding, HSV encoding
2448	* @quantization: enum v4l2_quantization, colorspace quantization
2449	* @xfer_func: enum v4l2_xfer_func, colorspace transfer function
2450	* @reserved: drivers and applications must zero this array
2451	*/
2452	struct v4l2_pix_format_mplane {
2453	__u32 width;
2454	__u32 height;
2455	__u32 pixelformat;
2456	__u32 field;
2457	__u32 colorspace;
2458
2459	struct v4l2_plane_pix_format plane_fmt[VIDEO_MAX_PLANES];
2460	__u8 num_planes;
2461	__u8 flags;
2462	union {
2463	__u8 ycbcr_enc;
2464	__u8 hsv_enc;
2465	};
2466	__u8 quantization;
2467	__u8 xfer_func;
2468	__u8 reserved[`7`];
2469	} __attribute__ ((packed));
2470
2471	/**
2472	* struct v4l2_sdr_format - SDR format definition
2473	* @pixelformat: little endian four character code (fourcc)
2474	* @buffersize: maximum size in bytes required for data
2475	* @reserved: drivers and applications must zero this array
2476	*/
2477	struct v4l2_sdr_format {
2478	__u32 pixelformat;
2479	__u32 buffersize;
2480	__u8 reserved[`24`];
2481	} __attribute__ ((packed));
2482
2483	/**
2484	* struct v4l2_meta_format - metadata format definition
2485	* @dataformat: little endian four character code (fourcc)
2486	* @buffersize: maximum size in bytes required for data
2487	* @width: number of data units of data per line (valid for line
2488	* based formats only, see format documentation)
2489	* @height: number of lines of data per buffer (valid for line based
2490	* formats only)
2491	* @bytesperline: offset between the beginnings of two adjacent lines in
2492	* bytes (valid for line based formats only)
2493	*/
2494	struct v4l2_meta_format {
2495	__u32 dataformat;
2496	__u32 buffersize;
2497	__u32 width;
2498	__u32 height;
2499	__u32 bytesperline;
2500	} __attribute__ ((packed));
2501
2502	/**
2503	* struct v4l2_format - stream data format
2504	* @type: enum v4l2_buf_type; type of the data stream
2505	* @fmt.pix: definition of an image format
2506	* @fmt.pix_mp: definition of a multiplanar image format
2507	* @fmt.win: definition of an overlaid image
2508	* @fmt.vbi: raw VBI capture or output parameters
2509	* @fmt.sliced: sliced VBI capture or output parameters
2510	* @fmt.raw_data: placeholder for future extensions and custom formats
2511	* @fmt: union of @pix, @pix_mp, @win, @vbi, @sliced, @sdr,
2512	* @meta and @raw_data
2513	*/
2514	struct v4l2_format {
2515	__u32 type;
2516	union {
2517	struct v4l2_pix_format pix; / V4L2_BUF_TYPE_VIDEO_CAPTURE /
2518	struct v4l2_pix_format_mplane pix_mp; / V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE /
2519	struct v4l2_window win; / V4L2_BUF_TYPE_VIDEO_OVERLAY /
2520	struct v4l2_vbi_format vbi; / V4L2_BUF_TYPE_VBI_CAPTURE /
2521	struct v4l2_sliced_vbi_format sliced; / V4L2_BUF_TYPE_SLICED_VBI_CAPTURE /
2522	struct v4l2_sdr_format sdr; / V4L2_BUF_TYPE_SDR_CAPTURE /
2523	struct v4l2_meta_format meta; / V4L2_BUF_TYPE_META_CAPTURE /
2524	__u8 raw_data[`200`]; / user-defined /
2525	} fmt;
2526	};
2527
2528	/ Stream type-dependent parameters*
2529	*/
2530	struct v4l2_streamparm {
2531	__u32 type; / enum v4l2_buf_type /
2532	union {
2533	struct v4l2_captureparm capture;
2534	struct v4l2_outputparm output;
2535	__u8 raw_data[`200`]; / user-defined /
2536	} parm;
2537	};
2538
2539	/*
2540	* E V E N T S
2541	*/
2542
2543	#define V4L2_EVENT_ALL 0
2544	#define V4L2_EVENT_VSYNC 1
2545	#define V4L2_EVENT_EOS 2
2546	#define V4L2_EVENT_CTRL 3
2547	#define V4L2_EVENT_FRAME_SYNC 4
2548	#define V4L2_EVENT_SOURCE_CHANGE 5
2549	#define V4L2_EVENT_MOTION_DET 6
2550	#define V4L2_EVENT_PRIVATE_START 0x08000000
2551
2552	/ Payload for V4L2_EVENT_VSYNC /
2553	struct v4l2_event_vsync {
2554	/ Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM /
2555	__u8 field;
2556	} __attribute__ ((packed));
2557
2558	/ Payload for V4L2_EVENT_CTRL /
2559	#define V4L2_EVENT_CTRL_CH_VALUE (1 << 0)
2560	#define V4L2_EVENT_CTRL_CH_FLAGS (1 << 1)
2561	#define V4L2_EVENT_CTRL_CH_RANGE (1 << 2)
2562	#define V4L2_EVENT_CTRL_CH_DIMENSIONS (1 << 3)
2563
2564	struct v4l2_event_ctrl {
2565	__u32 changes;
2566	__u32 type;
2567	union {
2568	__s32 value;
2569	__s64 value64;
2570	};
2571	__u32 flags;
2572	__s32 minimum;
2573	__s32 maximum;
2574	__s32 step;
2575	__s32 default_value;
2576	};
2577
2578	struct v4l2_event_frame_sync {
2579	__u32 frame_sequence;
2580	};
2581
2582	#define V4L2_EVENT_SRC_CH_RESOLUTION (1 << 0)
2583
2584	struct v4l2_event_src_change {
2585	__u32 changes;
2586	};
2587
2588	#define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ (1 << 0)
2589
2590	/**
2591	* struct v4l2_event_motion_det - motion detection event
2592	* @flags: if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the
2593	* frame_sequence field is valid.
2594	* @frame_sequence: the frame sequence number associated with this event.
2595	* @region_mask: which regions detected motion.
2596	*/
2597	struct v4l2_event_motion_det {
2598	__u32 flags;
2599	__u32 frame_sequence;
2600	__u32 region_mask;
2601	};
2602
2603	struct v4l2_event {
2604	__u32 type;
2605	union {
2606	struct v4l2_event_vsync vsync;
2607	struct v4l2_event_ctrl ctrl;
2608	struct v4l2_event_frame_sync frame_sync;
2609	struct v4l2_event_src_change src_change;
2610	struct v4l2_event_motion_det motion_det;
2611	__u8 data[`64`];
2612	} u;
2613	__u32 pending;
2614	__u32 sequence;
2615	#ifdef __KERNEL__
2616	struct __kernel_timespec timestamp;
2617	#else
2618	struct timespec timestamp;
2619	#endif
2620	__u32 id;
2621	__u32 reserved[`8`];
2622	};
2623
2624	#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0)
2625	#define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK (1 << 1)
2626
2627	struct v4l2_event_subscription {
2628	__u32 type;
2629	__u32 id;
2630	__u32 flags;
2631	__u32 reserved[`5`];
2632	};
2633
2634	/*
2635	* A D V A N C E D D E B U G G I N G
2636	*
2637	* NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
2638	* FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
2639	*/
2640
2641	/ VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER /
2642
2643	#define V4L2_CHIP_MATCH_BRIDGE 0 /* Match against chip ID on the bridge (0 for the bridge) */
2644	#define V4L2_CHIP_MATCH_SUBDEV 4 /* Match against subdev index */
2645
2646	/ The following four defines are no longer in use /
2647	#define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
2648	#define V4L2_CHIP_MATCH_I2C_DRIVER 1 /* Match against I2C driver name */
2649	#define V4L2_CHIP_MATCH_I2C_ADDR 2 /* Match against I2C 7-bit address */
2650	#define V4L2_CHIP_MATCH_AC97 3 /* Match against ancillary AC97 chip */
2651
2652	struct v4l2_dbg_match {
2653	__u32 type; / Match type /
2654	union { / Match this chip, meaning determined by type /
2655	__u32 addr;
2656	char name[`32`];
2657	};
2658	} __attribute__ ((packed));
2659
2660	struct v4l2_dbg_register {
2661	struct v4l2_dbg_match match;
2662	__u32 size; / register size in bytes /
2663	__u64 reg;
2664	__u64 val;
2665	} __attribute__ ((packed));
2666
2667	#define V4L2_CHIP_FL_READABLE (1 << 0)
2668	#define V4L2_CHIP_FL_WRITABLE (1 << 1)
2669
2670	/ VIDIOC_DBG_G_CHIP_INFO /
2671	struct v4l2_dbg_chip_info {
2672	struct v4l2_dbg_match match;
2673	char name[`32`];
2674	__u32 flags;
2675	__u32 reserved[`32`];
2676	} __attribute__ ((packed));
2677
2678	/**
2679	* struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
2680	* @index: on return, index of the first created buffer
2681	* @count: entry: number of requested buffers,
2682	* return: number of created buffers
2683	* @memory: enum v4l2_memory; buffer memory type
2684	* @format: frame format, for which buffers are requested
2685	* @capabilities: capabilities of this buffer type.
2686	* @flags: additional buffer management attributes (ignored unless the
2687	* queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
2688	* and configured for MMAP streaming I/O).
2689	* @max_num_buffers: if V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS capability flag is set
2690	* this field indicate the maximum possible number of buffers
2691	* for this queue.
2692	* @reserved: future extensions
2693	*/
2694	struct v4l2_create_buffers {
2695	__u32 index;
2696	__u32 count;
2697	__u32 memory;
2698	struct v4l2_format format;
2699	__u32 capabilities;
2700	__u32 flags;
2701	__u32 max_num_buffers;
2702	__u32 reserved[`5`];
2703	};
2704
2705	/**
2706	* struct v4l2_remove_buffers - VIDIOC_REMOVE_BUFS argument
2707	* @index: the first buffer to be removed
2708	* @count: number of buffers to removed
2709	* @type: enum v4l2_buf_type
2710	* @reserved: future extensions
2711	*/
2712	struct v4l2_remove_buffers {
2713	__u32 index;
2714	__u32 count;
2715	__u32 type;
2716	__u32 reserved[`13`];
2717	};
2718
2719	/*
2720	* I O C T L C O D E S F O R V I D E O D E V I C E S
2721	*
2722	*/
2723	#define VIDIOC_QUERYCAP _IOR('V', 0, struct v4l2_capability)
2724	#define VIDIOC_ENUM_FMT _IOWR('V', 2, struct v4l2_fmtdesc)
2725	#define VIDIOC_G_FMT _IOWR('V', 4, struct v4l2_format)
2726	#define VIDIOC_S_FMT _IOWR('V', 5, struct v4l2_format)
2727	#define VIDIOC_REQBUFS _IOWR('V', 8, struct v4l2_requestbuffers)
2728	#define VIDIOC_QUERYBUF _IOWR('V', 9, struct v4l2_buffer)
2729	#define VIDIOC_G_FBUF _IOR('V', 10, struct v4l2_framebuffer)
2730	#define VIDIOC_S_FBUF _IOW('V', 11, struct v4l2_framebuffer)
2731	#define VIDIOC_OVERLAY _IOW('V', 14, int)
2732	#define VIDIOC_QBUF _IOWR('V', 15, struct v4l2_buffer)
2733	#define VIDIOC_EXPBUF _IOWR('V', 16, struct v4l2_exportbuffer)
2734	#define VIDIOC_DQBUF _IOWR('V', 17, struct v4l2_buffer)
2735	#define VIDIOC_STREAMON _IOW('V', 18, int)
2736	#define VIDIOC_STREAMOFF _IOW('V', 19, int)
2737	#define VIDIOC_G_PARM _IOWR('V', 21, struct v4l2_streamparm)
2738	#define VIDIOC_S_PARM _IOWR('V', 22, struct v4l2_streamparm)
2739	#define VIDIOC_G_STD _IOR('V', 23, v4l2_std_id)
2740	#define VIDIOC_S_STD _IOW('V', 24, v4l2_std_id)
2741	#define VIDIOC_ENUMSTD _IOWR('V', 25, struct v4l2_standard)
2742	#define VIDIOC_ENUMINPUT _IOWR('V', 26, struct v4l2_input)
2743	#define VIDIOC_G_CTRL _IOWR('V', 27, struct v4l2_control)
2744	#define VIDIOC_S_CTRL _IOWR('V', 28, struct v4l2_control)
2745	#define VIDIOC_G_TUNER _IOWR('V', 29, struct v4l2_tuner)
2746	#define VIDIOC_S_TUNER _IOW('V', 30, struct v4l2_tuner)
2747	#define VIDIOC_G_AUDIO _IOR('V', 33, struct v4l2_audio)
2748	#define VIDIOC_S_AUDIO _IOW('V', 34, struct v4l2_audio)
2749	#define VIDIOC_QUERYCTRL _IOWR('V', 36, struct v4l2_queryctrl)
2750	#define VIDIOC_QUERYMENU _IOWR('V', 37, struct v4l2_querymenu)
2751	#define VIDIOC_G_INPUT _IOR('V', 38, int)
2752	#define VIDIOC_S_INPUT _IOWR('V', 39, int)
2753	#define VIDIOC_G_EDID _IOWR('V', 40, struct v4l2_edid)
2754	#define VIDIOC_S_EDID _IOWR('V', 41, struct v4l2_edid)
2755	#define VIDIOC_G_OUTPUT _IOR('V', 46, int)
2756	#define VIDIOC_S_OUTPUT _IOWR('V', 47, int)
2757	#define VIDIOC_ENUMOUTPUT _IOWR('V', 48, struct v4l2_output)
2758	#define VIDIOC_G_AUDOUT _IOR('V', 49, struct v4l2_audioout)
2759	#define VIDIOC_S_AUDOUT _IOW('V', 50, struct v4l2_audioout)
2760	#define VIDIOC_G_MODULATOR _IOWR('V', 54, struct v4l2_modulator)
2761	#define VIDIOC_S_MODULATOR _IOW('V', 55, struct v4l2_modulator)
2762	#define VIDIOC_G_FREQUENCY _IOWR('V', 56, struct v4l2_frequency)
2763	#define VIDIOC_S_FREQUENCY _IOW('V', 57, struct v4l2_frequency)
2764	#define VIDIOC_CROPCAP _IOWR('V', 58, struct v4l2_cropcap)
2765	#define VIDIOC_G_CROP _IOWR('V', 59, struct v4l2_crop)
2766	#define VIDIOC_S_CROP _IOW('V', 60, struct v4l2_crop)
2767	#define VIDIOC_G_JPEGCOMP _IOR('V', 61, struct v4l2_jpegcompression)
2768	#define VIDIOC_S_JPEGCOMP _IOW('V', 62, struct v4l2_jpegcompression)
2769	#define VIDIOC_QUERYSTD _IOR('V', 63, v4l2_std_id)
2770	#define VIDIOC_TRY_FMT _IOWR('V', 64, struct v4l2_format)
2771	#define VIDIOC_ENUMAUDIO _IOWR('V', 65, struct v4l2_audio)
2772	#define VIDIOC_ENUMAUDOUT _IOWR('V', 66, struct v4l2_audioout)
2773	#define VIDIOC_G_PRIORITY _IOR('V', 67, __u32) /* enum v4l2_priority */
2774	#define VIDIOC_S_PRIORITY _IOW('V', 68, __u32) /* enum v4l2_priority */
2775	#define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
2776	#define VIDIOC_LOG_STATUS _IO('V', 70)
2777	#define VIDIOC_G_EXT_CTRLS _IOWR('V', 71, struct v4l2_ext_controls)
2778	#define VIDIOC_S_EXT_CTRLS _IOWR('V', 72, struct v4l2_ext_controls)
2779	#define VIDIOC_TRY_EXT_CTRLS _IOWR('V', 73, struct v4l2_ext_controls)
2780	#define VIDIOC_ENUM_FRAMESIZES _IOWR('V', 74, struct v4l2_frmsizeenum)
2781	#define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
2782	#define VIDIOC_G_ENC_INDEX _IOR('V', 76, struct v4l2_enc_idx)
2783	#define VIDIOC_ENCODER_CMD _IOWR('V', 77, struct v4l2_encoder_cmd)
2784	#define VIDIOC_TRY_ENCODER_CMD _IOWR('V', 78, struct v4l2_encoder_cmd)
2785
2786	/*
2787	* Experimental, meant for debugging, testing and internal use.
2788	* Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
2789	* You must be root to use these ioctls. Never use these in applications!
2790	*/
2791	#define VIDIOC_DBG_S_REGISTER _IOW('V', 79, struct v4l2_dbg_register)
2792	#define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct v4l2_dbg_register)
2793
2794	#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct v4l2_hw_freq_seek)
2795	#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
2796	#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
2797	#define VIDIOC_DQEVENT _IOR('V', 89, struct v4l2_event)
2798	#define VIDIOC_SUBSCRIBE_EVENT _IOW('V', 90, struct v4l2_event_subscription)
2799	#define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
2800	#define VIDIOC_CREATE_BUFS _IOWR('V', 92, struct v4l2_create_buffers)
2801	#define VIDIOC_PREPARE_BUF _IOWR('V', 93, struct v4l2_buffer)
2802	#define VIDIOC_G_SELECTION _IOWR('V', 94, struct v4l2_selection)
2803	#define VIDIOC_S_SELECTION _IOWR('V', 95, struct v4l2_selection)
2804	#define VIDIOC_DECODER_CMD _IOWR('V', 96, struct v4l2_decoder_cmd)
2805	#define VIDIOC_TRY_DECODER_CMD _IOWR('V', 97, struct v4l2_decoder_cmd)
2806	#define VIDIOC_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings)
2807	#define VIDIOC_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings)
2808	#define VIDIOC_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap)
2809	#define VIDIOC_ENUM_FREQ_BANDS _IOWR('V', 101, struct v4l2_frequency_band)
2810
2811	/*
2812	* Experimental, meant for debugging, testing and internal use.
2813	* Never use this in applications!
2814	*/
2815	#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)
2816
2817	#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)
2818	#define VIDIOC_REMOVE_BUFS _IOWR('V', 104, struct v4l2_remove_buffers)
2819
2820
2821	/ Reminder: when adding new ioctls please add support for them to*
2822	drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! /*
2823
2824	#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
2825
2826	/ Deprecated definitions kept for backwards compatibility /
2827	#ifndef __KERNEL__
2828	#define V4L2_PIX_FMT_HM12 V4L2_PIX_FMT_NV12_16L16
2829	#define V4L2_PIX_FMT_SUNXI_TILED_NV12 V4L2_PIX_FMT_NV12_32L32
2830	/*
2831	* This capability was never implemented, anyone using this cap should drop it
2832	* from their code.
2833	*/
2834	#define V4L2_CAP_ASYNCIO 0x02000000
2835	#endif
2836
2837	#endif /* _UAPI__LINUX_VIDEODEV2_H */
2838

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