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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
35ea11ff HV |
2 | /* |
3 | * | |
4 | * V 4 L 2 D R I V E R H E L P E R A P I | |
5 | * | |
6 | * Moved from videodev2.h | |
7 | * | |
8 | * Some commonly needed functions for drivers (v4l2-common.o module) | |
9 | */ | |
10 | #ifndef _V4L2_IOCTL_H | |
11 | #define _V4L2_IOCTL_H | |
12 | ||
13 | #include <linux/poll.h> | |
14 | #include <linux/fs.h> | |
35ea11ff | 15 | #include <linux/mutex.h> |
174cd4b1 | 16 | #include <linux/sched/signal.h> |
35ea11ff | 17 | #include <linux/compiler.h> /* need __user */ |
35ea11ff | 18 | #include <linux/videodev2.h> |
35ea11ff | 19 | |
d3d7c963 SA |
20 | struct v4l2_fh; |
21 | ||
c91661f1 MCC |
22 | /** |
23 | * struct v4l2_ioctl_ops - describe operations for each V4L2 ioctl | |
24 | * | |
25 | * @vidioc_querycap: pointer to the function that implements | |
26 | * :ref:`VIDIOC_QUERYCAP <vidioc_querycap>` ioctl | |
27 | * @vidioc_enum_fmt_vid_cap: pointer to the function that implements | |
28 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
29 | * for video capture in single plane mode | |
30 | * @vidioc_enum_fmt_vid_overlay: pointer to the function that implements | |
31 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
32 | * for video overlay | |
33 | * @vidioc_enum_fmt_vid_out: pointer to the function that implements | |
34 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
35 | * for video output in single plane mode | |
36 | * @vidioc_enum_fmt_vid_cap_mplane: pointer to the function that implements | |
37 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
38 | * for video capture in multiplane mode | |
39 | * @vidioc_enum_fmt_vid_out_mplane: pointer to the function that implements | |
40 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
41 | * for video output in multiplane mode | |
42 | * @vidioc_enum_fmt_sdr_cap: pointer to the function that implements | |
43 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
44 | * for Software Defined Radio capture | |
45 | * @vidioc_enum_fmt_sdr_out: pointer to the function that implements | |
46 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
47 | * for Software Defined Radio output | |
fb9ffa6a LP |
48 | * @vidioc_enum_fmt_meta_cap: pointer to the function that implements |
49 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
50 | * for metadata capture | |
c91661f1 MCC |
51 | * @vidioc_g_fmt_vid_cap: pointer to the function that implements |
52 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
53 | * in single plane mode | |
54 | * @vidioc_g_fmt_vid_overlay: pointer to the function that implements | |
55 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
56 | * @vidioc_g_fmt_vid_out: pointer to the function that implements | |
57 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out | |
58 | * in single plane mode | |
59 | * @vidioc_g_fmt_vid_out_overlay: pointer to the function that implements | |
60 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay output | |
61 | * @vidioc_g_fmt_vbi_cap: pointer to the function that implements | |
62 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture | |
63 | * @vidioc_g_fmt_vbi_out: pointer to the function that implements | |
64 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output | |
65 | * @vidioc_g_fmt_sliced_vbi_cap: pointer to the function that implements | |
66 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture | |
67 | * @vidioc_g_fmt_sliced_vbi_out: pointer to the function that implements | |
68 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output | |
69 | * @vidioc_g_fmt_vid_cap_mplane: pointer to the function that implements | |
70 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
71 | * in multiple plane mode | |
72 | * @vidioc_g_fmt_vid_out_mplane: pointer to the function that implements | |
73 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out | |
74 | * in multiplane plane mode | |
75 | * @vidioc_g_fmt_sdr_cap: pointer to the function that implements | |
76 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
77 | * Radio capture | |
78 | * @vidioc_g_fmt_sdr_out: pointer to the function that implements | |
79 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
80 | * Radio output | |
fb9ffa6a LP |
81 | * @vidioc_g_fmt_meta_cap: pointer to the function that implements |
82 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata capture | |
c91661f1 MCC |
83 | * @vidioc_s_fmt_vid_cap: pointer to the function that implements |
84 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
85 | * in single plane mode | |
86 | * @vidioc_s_fmt_vid_overlay: pointer to the function that implements | |
87 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
88 | * @vidioc_s_fmt_vid_out: pointer to the function that implements | |
89 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out | |
90 | * in single plane mode | |
91 | * @vidioc_s_fmt_vid_out_overlay: pointer to the function that implements | |
92 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay output | |
93 | * @vidioc_s_fmt_vbi_cap: pointer to the function that implements | |
94 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture | |
95 | * @vidioc_s_fmt_vbi_out: pointer to the function that implements | |
96 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output | |
97 | * @vidioc_s_fmt_sliced_vbi_cap: pointer to the function that implements | |
98 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture | |
99 | * @vidioc_s_fmt_sliced_vbi_out: pointer to the function that implements | |
100 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output | |
101 | * @vidioc_s_fmt_vid_cap_mplane: pointer to the function that implements | |
102 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
103 | * in multiple plane mode | |
104 | * @vidioc_s_fmt_vid_out_mplane: pointer to the function that implements | |
105 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out | |
106 | * in multiplane plane mode | |
107 | * @vidioc_s_fmt_sdr_cap: pointer to the function that implements | |
108 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
109 | * Radio capture | |
110 | * @vidioc_s_fmt_sdr_out: pointer to the function that implements | |
111 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
112 | * Radio output | |
fb9ffa6a LP |
113 | * @vidioc_s_fmt_meta_cap: pointer to the function that implements |
114 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata capture | |
c91661f1 MCC |
115 | * @vidioc_try_fmt_vid_cap: pointer to the function that implements |
116 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
117 | * in single plane mode | |
118 | * @vidioc_try_fmt_vid_overlay: pointer to the function that implements | |
119 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
120 | * @vidioc_try_fmt_vid_out: pointer to the function that implements | |
121 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out | |
122 | * in single plane mode | |
123 | * @vidioc_try_fmt_vid_out_overlay: pointer to the function that implements | |
124 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
125 | * output | |
126 | * @vidioc_try_fmt_vbi_cap: pointer to the function that implements | |
127 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture | |
128 | * @vidioc_try_fmt_vbi_out: pointer to the function that implements | |
129 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output | |
130 | * @vidioc_try_fmt_sliced_vbi_cap: pointer to the function that implements | |
131 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI | |
132 | * capture | |
133 | * @vidioc_try_fmt_sliced_vbi_out: pointer to the function that implements | |
134 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output | |
135 | * @vidioc_try_fmt_vid_cap_mplane: pointer to the function that implements | |
136 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
137 | * in multiple plane mode | |
138 | * @vidioc_try_fmt_vid_out_mplane: pointer to the function that implements | |
139 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out | |
140 | * in multiplane plane mode | |
141 | * @vidioc_try_fmt_sdr_cap: pointer to the function that implements | |
142 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
143 | * Radio capture | |
144 | * @vidioc_try_fmt_sdr_out: pointer to the function that implements | |
145 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
146 | * Radio output | |
fb9ffa6a LP |
147 | * @vidioc_try_fmt_meta_cap: pointer to the function that implements |
148 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata capture | |
c91661f1 MCC |
149 | * @vidioc_reqbufs: pointer to the function that implements |
150 | * :ref:`VIDIOC_REQBUFS <vidioc_reqbufs>` ioctl | |
151 | * @vidioc_querybuf: pointer to the function that implements | |
152 | * :ref:`VIDIOC_QUERYBUF <vidioc_querybuf>` ioctl | |
153 | * @vidioc_qbuf: pointer to the function that implements | |
154 | * :ref:`VIDIOC_QBUF <vidioc_qbuf>` ioctl | |
155 | * @vidioc_expbuf: pointer to the function that implements | |
156 | * :ref:`VIDIOC_EXPBUF <vidioc_expbuf>` ioctl | |
157 | * @vidioc_dqbuf: pointer to the function that implements | |
158 | * :ref:`VIDIOC_DQBUF <vidioc_qbuf>` ioctl | |
159 | * @vidioc_create_bufs: pointer to the function that implements | |
160 | * :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl | |
161 | * @vidioc_prepare_buf: pointer to the function that implements | |
162 | * :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl | |
163 | * @vidioc_overlay: pointer to the function that implements | |
164 | * :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl | |
165 | * @vidioc_g_fbuf: pointer to the function that implements | |
166 | * :ref:`VIDIOC_G_FBUF <vidioc_g_fbuf>` ioctl | |
167 | * @vidioc_s_fbuf: pointer to the function that implements | |
168 | * :ref:`VIDIOC_S_FBUF <vidioc_g_fbuf>` ioctl | |
169 | * @vidioc_streamon: pointer to the function that implements | |
170 | * :ref:`VIDIOC_STREAMON <vidioc_streamon>` ioctl | |
171 | * @vidioc_streamoff: pointer to the function that implements | |
172 | * :ref:`VIDIOC_STREAMOFF <vidioc_streamon>` ioctl | |
173 | * @vidioc_g_std: pointer to the function that implements | |
174 | * :ref:`VIDIOC_G_STD <vidioc_g_std>` ioctl | |
175 | * @vidioc_s_std: pointer to the function that implements | |
176 | * :ref:`VIDIOC_S_STD <vidioc_g_std>` ioctl | |
177 | * @vidioc_querystd: pointer to the function that implements | |
178 | * :ref:`VIDIOC_QUERYSTD <vidioc_querystd>` ioctl | |
179 | * @vidioc_enum_input: pointer to the function that implements | |
180 | * :ref:`VIDIOC_ENUM_INPUT <vidioc_g_input>` ioctl | |
181 | * @vidioc_g_input: pointer to the function that implements | |
182 | * :ref:`VIDIOC_G_INPUT <vidioc_g_input>` ioctl | |
183 | * @vidioc_s_input: pointer to the function that implements | |
184 | * :ref:`VIDIOC_S_INPUT <vidioc_g_input>` ioctl | |
185 | * @vidioc_enum_output: pointer to the function that implements | |
186 | * :ref:`VIDIOC_ENUM_OUTPUT <vidioc_g_output>` ioctl | |
187 | * @vidioc_g_output: pointer to the function that implements | |
188 | * :ref:`VIDIOC_G_OUTPUT <vidioc_g_output>` ioctl | |
189 | * @vidioc_s_output: pointer to the function that implements | |
190 | * :ref:`VIDIOC_S_OUTPUT <vidioc_g_output>` ioctl | |
191 | * @vidioc_queryctrl: pointer to the function that implements | |
192 | * :ref:`VIDIOC_QUERYCTRL <vidioc_queryctrl>` ioctl | |
193 | * @vidioc_query_ext_ctrl: pointer to the function that implements | |
194 | * :ref:`VIDIOC_QUERY_EXT_CTRL <vidioc_queryctrl>` ioctl | |
195 | * @vidioc_g_ctrl: pointer to the function that implements | |
196 | * :ref:`VIDIOC_G_CTRL <vidioc_g_ctrl>` ioctl | |
197 | * @vidioc_s_ctrl: pointer to the function that implements | |
198 | * :ref:`VIDIOC_S_CTRL <vidioc_g_ctrl>` ioctl | |
199 | * @vidioc_g_ext_ctrls: pointer to the function that implements | |
200 | * :ref:`VIDIOC_G_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl | |
201 | * @vidioc_s_ext_ctrls: pointer to the function that implements | |
202 | * :ref:`VIDIOC_S_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl | |
203 | * @vidioc_try_ext_ctrls: pointer to the function that implements | |
204 | * :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl | |
205 | * @vidioc_querymenu: pointer to the function that implements | |
206 | * :ref:`VIDIOC_QUERYMENU <vidioc_queryctrl>` ioctl | |
207 | * @vidioc_enumaudio: pointer to the function that implements | |
208 | * :ref:`VIDIOC_ENUMAUDIO <vidioc_enumaudio>` ioctl | |
209 | * @vidioc_g_audio: pointer to the function that implements | |
210 | * :ref:`VIDIOC_G_AUDIO <vidioc_g_audio>` ioctl | |
211 | * @vidioc_s_audio: pointer to the function that implements | |
212 | * :ref:`VIDIOC_S_AUDIO <vidioc_g_audio>` ioctl | |
213 | * @vidioc_enumaudout: pointer to the function that implements | |
214 | * :ref:`VIDIOC_ENUMAUDOUT <vidioc_enumaudout>` ioctl | |
215 | * @vidioc_g_audout: pointer to the function that implements | |
216 | * :ref:`VIDIOC_G_AUDOUT <vidioc_g_audout>` ioctl | |
217 | * @vidioc_s_audout: pointer to the function that implements | |
218 | * :ref:`VIDIOC_S_AUDOUT <vidioc_g_audout>` ioctl | |
219 | * @vidioc_g_modulator: pointer to the function that implements | |
220 | * :ref:`VIDIOC_G_MODULATOR <vidioc_g_modulator>` ioctl | |
221 | * @vidioc_s_modulator: pointer to the function that implements | |
222 | * :ref:`VIDIOC_S_MODULATOR <vidioc_g_modulator>` ioctl | |
223 | * @vidioc_cropcap: pointer to the function that implements | |
224 | * :ref:`VIDIOC_CROPCAP <vidioc_cropcap>` ioctl | |
225 | * @vidioc_g_crop: pointer to the function that implements | |
226 | * :ref:`VIDIOC_G_CROP <vidioc_g_crop>` ioctl | |
227 | * @vidioc_s_crop: pointer to the function that implements | |
228 | * :ref:`VIDIOC_S_CROP <vidioc_g_crop>` ioctl | |
229 | * @vidioc_g_selection: pointer to the function that implements | |
230 | * :ref:`VIDIOC_G_SELECTION <vidioc_g_selection>` ioctl | |
231 | * @vidioc_s_selection: pointer to the function that implements | |
232 | * :ref:`VIDIOC_S_SELECTION <vidioc_g_selection>` ioctl | |
233 | * @vidioc_g_jpegcomp: pointer to the function that implements | |
234 | * :ref:`VIDIOC_G_JPEGCOMP <vidioc_g_jpegcomp>` ioctl | |
235 | * @vidioc_s_jpegcomp: pointer to the function that implements | |
236 | * :ref:`VIDIOC_S_JPEGCOMP <vidioc_g_jpegcomp>` ioctl | |
237 | * @vidioc_g_enc_index: pointer to the function that implements | |
238 | * :ref:`VIDIOC_G_ENC_INDEX <vidioc_g_enc_index>` ioctl | |
239 | * @vidioc_encoder_cmd: pointer to the function that implements | |
240 | * :ref:`VIDIOC_ENCODER_CMD <vidioc_encoder_cmd>` ioctl | |
241 | * @vidioc_try_encoder_cmd: pointer to the function that implements | |
242 | * :ref:`VIDIOC_TRY_ENCODER_CMD <vidioc_encoder_cmd>` ioctl | |
243 | * @vidioc_decoder_cmd: pointer to the function that implements | |
244 | * :ref:`VIDIOC_DECODER_CMD <vidioc_decoder_cmd>` ioctl | |
245 | * @vidioc_try_decoder_cmd: pointer to the function that implements | |
246 | * :ref:`VIDIOC_TRY_DECODER_CMD <vidioc_decoder_cmd>` ioctl | |
247 | * @vidioc_g_parm: pointer to the function that implements | |
248 | * :ref:`VIDIOC_G_PARM <vidioc_g_parm>` ioctl | |
249 | * @vidioc_s_parm: pointer to the function that implements | |
250 | * :ref:`VIDIOC_S_PARM <vidioc_g_parm>` ioctl | |
251 | * @vidioc_g_tuner: pointer to the function that implements | |
252 | * :ref:`VIDIOC_G_TUNER <vidioc_g_tuner>` ioctl | |
253 | * @vidioc_s_tuner: pointer to the function that implements | |
254 | * :ref:`VIDIOC_S_TUNER <vidioc_g_tuner>` ioctl | |
255 | * @vidioc_g_frequency: pointer to the function that implements | |
256 | * :ref:`VIDIOC_G_FREQUENCY <vidioc_g_frequency>` ioctl | |
257 | * @vidioc_s_frequency: pointer to the function that implements | |
258 | * :ref:`VIDIOC_S_FREQUENCY <vidioc_g_frequency>` ioctl | |
259 | * @vidioc_enum_freq_bands: pointer to the function that implements | |
260 | * :ref:`VIDIOC_ENUM_FREQ_BANDS <vidioc_enum_freq_bands>` ioctl | |
261 | * @vidioc_g_sliced_vbi_cap: pointer to the function that implements | |
262 | * :ref:`VIDIOC_G_SLICED_VBI_CAP <vidioc_g_sliced_vbi_cap>` ioctl | |
263 | * @vidioc_log_status: pointer to the function that implements | |
264 | * :ref:`VIDIOC_LOG_STATUS <vidioc_log_status>` ioctl | |
265 | * @vidioc_s_hw_freq_seek: pointer to the function that implements | |
266 | * :ref:`VIDIOC_S_HW_FREQ_SEEK <vidioc_s_hw_freq_seek>` ioctl | |
267 | * @vidioc_g_register: pointer to the function that implements | |
268 | * :ref:`VIDIOC_DBG_G_REGISTER <vidioc_dbg_g_register>` ioctl | |
269 | * @vidioc_s_register: pointer to the function that implements | |
270 | * :ref:`VIDIOC_DBG_S_REGISTER <vidioc_dbg_g_register>` ioctl | |
271 | * @vidioc_g_chip_info: pointer to the function that implements | |
272 | * :ref:`VIDIOC_DBG_G_CHIP_INFO <vidioc_dbg_g_chip_info>` ioctl | |
273 | * @vidioc_enum_framesizes: pointer to the function that implements | |
274 | * :ref:`VIDIOC_ENUM_FRAMESIZES <vidioc_enum_framesizes>` ioctl | |
275 | * @vidioc_enum_frameintervals: pointer to the function that implements | |
276 | * :ref:`VIDIOC_ENUM_FRAMEINTERVALS <vidioc_enum_frameintervals>` ioctl | |
277 | * @vidioc_s_dv_timings: pointer to the function that implements | |
278 | * :ref:`VIDIOC_S_DV_TIMINGS <vidioc_g_dv_timings>` ioctl | |
279 | * @vidioc_g_dv_timings: pointer to the function that implements | |
280 | * :ref:`VIDIOC_G_DV_TIMINGS <vidioc_g_dv_timings>` ioctl | |
281 | * @vidioc_query_dv_timings: pointer to the function that implements | |
282 | * :ref:`VIDIOC_QUERY_DV_TIMINGS <vidioc_query_dv_timings>` ioctl | |
283 | * @vidioc_enum_dv_timings: pointer to the function that implements | |
284 | * :ref:`VIDIOC_ENUM_DV_TIMINGS <vidioc_enum_dv_timings>` ioctl | |
285 | * @vidioc_dv_timings_cap: pointer to the function that implements | |
286 | * :ref:`VIDIOC_DV_TIMINGS_CAP <vidioc_dv_timings_cap>` ioctl | |
287 | * @vidioc_g_edid: pointer to the function that implements | |
288 | * :ref:`VIDIOC_G_EDID <vidioc_g_edid>` ioctl | |
289 | * @vidioc_s_edid: pointer to the function that implements | |
290 | * :ref:`VIDIOC_S_EDID <vidioc_g_edid>` ioctl | |
291 | * @vidioc_subscribe_event: pointer to the function that implements | |
292 | * :ref:`VIDIOC_SUBSCRIBE_EVENT <vidioc_subscribe_event>` ioctl | |
293 | * @vidioc_unsubscribe_event: pointer to the function that implements | |
294 | * :ref:`VIDIOC_UNSUBSCRIBE_EVENT <vidioc_unsubscribe_event>` ioctl | |
295 | * @vidioc_default: pointed used to allow other ioctls | |
296 | */ | |
a399810c HV |
297 | struct v4l2_ioctl_ops { |
298 | /* ioctl callbacks */ | |
299 | ||
300 | /* VIDIOC_QUERYCAP handler */ | |
bba65c13 MCC |
301 | int (*vidioc_querycap)(struct file *file, void *fh, |
302 | struct v4l2_capability *cap); | |
a399810c | 303 | |
a399810c | 304 | /* VIDIOC_ENUM_FMT handlers */ |
bba65c13 MCC |
305 | int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *fh, |
306 | struct v4l2_fmtdesc *f); | |
307 | int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *fh, | |
308 | struct v4l2_fmtdesc *f); | |
309 | int (*vidioc_enum_fmt_vid_out)(struct file *file, void *fh, | |
310 | struct v4l2_fmtdesc *f); | |
d14e6d76 PO |
311 | int (*vidioc_enum_fmt_vid_cap_mplane)(struct file *file, void *fh, |
312 | struct v4l2_fmtdesc *f); | |
313 | int (*vidioc_enum_fmt_vid_out_mplane)(struct file *file, void *fh, | |
314 | struct v4l2_fmtdesc *f); | |
bba65c13 MCC |
315 | int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *fh, |
316 | struct v4l2_fmtdesc *f); | |
317 | int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *fh, | |
318 | struct v4l2_fmtdesc *f); | |
fb9ffa6a LP |
319 | int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *fh, |
320 | struct v4l2_fmtdesc *f); | |
a399810c HV |
321 | |
322 | /* VIDIOC_G_FMT handlers */ | |
bba65c13 MCC |
323 | int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh, |
324 | struct v4l2_format *f); | |
a399810c HV |
325 | int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, |
326 | struct v4l2_format *f); | |
bba65c13 MCC |
327 | int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh, |
328 | struct v4l2_format *f); | |
a399810c | 329 | int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, |
bba65c13 MCC |
330 | struct v4l2_format *f); |
331 | int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh, | |
332 | struct v4l2_format *f); | |
333 | int (*vidioc_g_fmt_vbi_out)(struct file *file, void *fh, | |
334 | struct v4l2_format *f); | |
a399810c | 335 | int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
bba65c13 | 336 | struct v4l2_format *f); |
a399810c | 337 | int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, |
bba65c13 | 338 | struct v4l2_format *f); |
d14e6d76 PO |
339 | int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, |
340 | struct v4l2_format *f); | |
341 | int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, | |
342 | struct v4l2_format *f); | |
bba65c13 MCC |
343 | int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *fh, |
344 | struct v4l2_format *f); | |
345 | int (*vidioc_g_fmt_sdr_out)(struct file *file, void *fh, | |
346 | struct v4l2_format *f); | |
fb9ffa6a LP |
347 | int (*vidioc_g_fmt_meta_cap)(struct file *file, void *fh, |
348 | struct v4l2_format *f); | |
a399810c HV |
349 | |
350 | /* VIDIOC_S_FMT handlers */ | |
bba65c13 MCC |
351 | int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh, |
352 | struct v4l2_format *f); | |
a399810c HV |
353 | int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, |
354 | struct v4l2_format *f); | |
bba65c13 MCC |
355 | int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh, |
356 | struct v4l2_format *f); | |
a399810c | 357 | int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, |
bba65c13 MCC |
358 | struct v4l2_format *f); |
359 | int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh, | |
360 | struct v4l2_format *f); | |
361 | int (*vidioc_s_fmt_vbi_out)(struct file *file, void *fh, | |
362 | struct v4l2_format *f); | |
a399810c | 363 | int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
bba65c13 | 364 | struct v4l2_format *f); |
a399810c | 365 | int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, |
bba65c13 | 366 | struct v4l2_format *f); |
d14e6d76 PO |
367 | int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, |
368 | struct v4l2_format *f); | |
369 | int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, | |
370 | struct v4l2_format *f); | |
bba65c13 MCC |
371 | int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *fh, |
372 | struct v4l2_format *f); | |
373 | int (*vidioc_s_fmt_sdr_out)(struct file *file, void *fh, | |
374 | struct v4l2_format *f); | |
fb9ffa6a LP |
375 | int (*vidioc_s_fmt_meta_cap)(struct file *file, void *fh, |
376 | struct v4l2_format *f); | |
a399810c HV |
377 | |
378 | /* VIDIOC_TRY_FMT handlers */ | |
bba65c13 MCC |
379 | int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh, |
380 | struct v4l2_format *f); | |
a399810c HV |
381 | int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, |
382 | struct v4l2_format *f); | |
bba65c13 MCC |
383 | int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh, |
384 | struct v4l2_format *f); | |
a399810c | 385 | int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, |
bba65c13 MCC |
386 | struct v4l2_format *f); |
387 | int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh, | |
388 | struct v4l2_format *f); | |
389 | int (*vidioc_try_fmt_vbi_out)(struct file *file, void *fh, | |
390 | struct v4l2_format *f); | |
a399810c | 391 | int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
bba65c13 | 392 | struct v4l2_format *f); |
a399810c | 393 | int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, |
bba65c13 | 394 | struct v4l2_format *f); |
d14e6d76 PO |
395 | int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, |
396 | struct v4l2_format *f); | |
397 | int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, | |
398 | struct v4l2_format *f); | |
bba65c13 MCC |
399 | int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *fh, |
400 | struct v4l2_format *f); | |
401 | int (*vidioc_try_fmt_sdr_out)(struct file *file, void *fh, | |
402 | struct v4l2_format *f); | |
fb9ffa6a LP |
403 | int (*vidioc_try_fmt_meta_cap)(struct file *file, void *fh, |
404 | struct v4l2_format *f); | |
a399810c HV |
405 | |
406 | /* Buffer handlers */ | |
bba65c13 MCC |
407 | int (*vidioc_reqbufs)(struct file *file, void *fh, |
408 | struct v4l2_requestbuffers *b); | |
409 | int (*vidioc_querybuf)(struct file *file, void *fh, | |
410 | struct v4l2_buffer *b); | |
411 | int (*vidioc_qbuf)(struct file *file, void *fh, | |
412 | struct v4l2_buffer *b); | |
413 | int (*vidioc_expbuf)(struct file *file, void *fh, | |
414 | struct v4l2_exportbuffer *e); | |
415 | int (*vidioc_dqbuf)(struct file *file, void *fh, | |
416 | struct v4l2_buffer *b); | |
417 | ||
418 | int (*vidioc_create_bufs)(struct file *file, void *fh, | |
419 | struct v4l2_create_buffers *b); | |
420 | int (*vidioc_prepare_buf)(struct file *file, void *fh, | |
421 | struct v4l2_buffer *b); | |
422 | ||
423 | int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i); | |
424 | int (*vidioc_g_fbuf)(struct file *file, void *fh, | |
425 | struct v4l2_framebuffer *a); | |
426 | int (*vidioc_s_fbuf)(struct file *file, void *fh, | |
427 | const struct v4l2_framebuffer *a); | |
a399810c HV |
428 | |
429 | /* Stream on/off */ | |
bba65c13 MCC |
430 | int (*vidioc_streamon)(struct file *file, void *fh, |
431 | enum v4l2_buf_type i); | |
432 | int (*vidioc_streamoff)(struct file *file, void *fh, | |
433 | enum v4l2_buf_type i); | |
434 | ||
435 | /* | |
436 | * Standard handling | |
437 | * | |
438 | * Note: ENUMSTD is handled by videodev.c | |
a399810c | 439 | */ |
bba65c13 MCC |
440 | int (*vidioc_g_std)(struct file *file, void *fh, v4l2_std_id *norm); |
441 | int (*vidioc_s_std)(struct file *file, void *fh, v4l2_std_id norm); | |
442 | int (*vidioc_querystd)(struct file *file, void *fh, v4l2_std_id *a); | |
a399810c HV |
443 | |
444 | /* Input handling */ | |
445 | int (*vidioc_enum_input)(struct file *file, void *fh, | |
446 | struct v4l2_input *inp); | |
bba65c13 MCC |
447 | int (*vidioc_g_input)(struct file *file, void *fh, unsigned int *i); |
448 | int (*vidioc_s_input)(struct file *file, void *fh, unsigned int i); | |
a399810c HV |
449 | |
450 | /* Output handling */ | |
bba65c13 | 451 | int (*vidioc_enum_output)(struct file *file, void *fh, |
a399810c | 452 | struct v4l2_output *a); |
bba65c13 MCC |
453 | int (*vidioc_g_output)(struct file *file, void *fh, unsigned int *i); |
454 | int (*vidioc_s_output)(struct file *file, void *fh, unsigned int i); | |
a399810c HV |
455 | |
456 | /* Control handling */ | |
bba65c13 MCC |
457 | int (*vidioc_queryctrl)(struct file *file, void *fh, |
458 | struct v4l2_queryctrl *a); | |
459 | int (*vidioc_query_ext_ctrl)(struct file *file, void *fh, | |
460 | struct v4l2_query_ext_ctrl *a); | |
461 | int (*vidioc_g_ctrl)(struct file *file, void *fh, | |
462 | struct v4l2_control *a); | |
463 | int (*vidioc_s_ctrl)(struct file *file, void *fh, | |
464 | struct v4l2_control *a); | |
465 | int (*vidioc_g_ext_ctrls)(struct file *file, void *fh, | |
466 | struct v4l2_ext_controls *a); | |
467 | int (*vidioc_s_ext_ctrls)(struct file *file, void *fh, | |
468 | struct v4l2_ext_controls *a); | |
469 | int (*vidioc_try_ext_ctrls)(struct file *file, void *fh, | |
470 | struct v4l2_ext_controls *a); | |
471 | int (*vidioc_querymenu)(struct file *file, void *fh, | |
472 | struct v4l2_querymenu *a); | |
a399810c HV |
473 | |
474 | /* Audio ioctls */ | |
bba65c13 MCC |
475 | int (*vidioc_enumaudio)(struct file *file, void *fh, |
476 | struct v4l2_audio *a); | |
477 | int (*vidioc_g_audio)(struct file *file, void *fh, | |
478 | struct v4l2_audio *a); | |
479 | int (*vidioc_s_audio)(struct file *file, void *fh, | |
480 | const struct v4l2_audio *a); | |
a399810c HV |
481 | |
482 | /* Audio out ioctls */ | |
bba65c13 MCC |
483 | int (*vidioc_enumaudout)(struct file *file, void *fh, |
484 | struct v4l2_audioout *a); | |
485 | int (*vidioc_g_audout)(struct file *file, void *fh, | |
486 | struct v4l2_audioout *a); | |
487 | int (*vidioc_s_audout)(struct file *file, void *fh, | |
488 | const struct v4l2_audioout *a); | |
489 | int (*vidioc_g_modulator)(struct file *file, void *fh, | |
490 | struct v4l2_modulator *a); | |
491 | int (*vidioc_s_modulator)(struct file *file, void *fh, | |
492 | const struct v4l2_modulator *a); | |
a399810c | 493 | /* Crop ioctls */ |
bba65c13 MCC |
494 | int (*vidioc_cropcap)(struct file *file, void *fh, |
495 | struct v4l2_cropcap *a); | |
496 | int (*vidioc_g_crop)(struct file *file, void *fh, | |
497 | struct v4l2_crop *a); | |
498 | int (*vidioc_s_crop)(struct file *file, void *fh, | |
499 | const struct v4l2_crop *a); | |
500 | int (*vidioc_g_selection)(struct file *file, void *fh, | |
501 | struct v4l2_selection *s); | |
502 | int (*vidioc_s_selection)(struct file *file, void *fh, | |
503 | struct v4l2_selection *s); | |
a399810c | 504 | /* Compression ioctls */ |
bba65c13 MCC |
505 | int (*vidioc_g_jpegcomp)(struct file *file, void *fh, |
506 | struct v4l2_jpegcompression *a); | |
507 | int (*vidioc_s_jpegcomp)(struct file *file, void *fh, | |
508 | const struct v4l2_jpegcompression *a); | |
509 | int (*vidioc_g_enc_index)(struct file *file, void *fh, | |
510 | struct v4l2_enc_idx *a); | |
511 | int (*vidioc_encoder_cmd)(struct file *file, void *fh, | |
512 | struct v4l2_encoder_cmd *a); | |
513 | int (*vidioc_try_encoder_cmd)(struct file *file, void *fh, | |
514 | struct v4l2_encoder_cmd *a); | |
515 | int (*vidioc_decoder_cmd)(struct file *file, void *fh, | |
516 | struct v4l2_decoder_cmd *a); | |
517 | int (*vidioc_try_decoder_cmd)(struct file *file, void *fh, | |
518 | struct v4l2_decoder_cmd *a); | |
a399810c HV |
519 | |
520 | /* Stream type-dependent parameter ioctls */ | |
bba65c13 MCC |
521 | int (*vidioc_g_parm)(struct file *file, void *fh, |
522 | struct v4l2_streamparm *a); | |
523 | int (*vidioc_s_parm)(struct file *file, void *fh, | |
524 | struct v4l2_streamparm *a); | |
a399810c HV |
525 | |
526 | /* Tuner ioctls */ | |
bba65c13 MCC |
527 | int (*vidioc_g_tuner)(struct file *file, void *fh, |
528 | struct v4l2_tuner *a); | |
529 | int (*vidioc_s_tuner)(struct file *file, void *fh, | |
530 | const struct v4l2_tuner *a); | |
531 | int (*vidioc_g_frequency)(struct file *file, void *fh, | |
532 | struct v4l2_frequency *a); | |
533 | int (*vidioc_s_frequency)(struct file *file, void *fh, | |
534 | const struct v4l2_frequency *a); | |
535 | int (*vidioc_enum_freq_bands)(struct file *file, void *fh, | |
536 | struct v4l2_frequency_band *band); | |
a399810c HV |
537 | |
538 | /* Sliced VBI cap */ | |
bba65c13 MCC |
539 | int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *fh, |
540 | struct v4l2_sliced_vbi_cap *a); | |
a399810c HV |
541 | |
542 | /* Log status ioctl */ | |
bba65c13 | 543 | int (*vidioc_log_status)(struct file *file, void *fh); |
a399810c | 544 | |
bba65c13 MCC |
545 | int (*vidioc_s_hw_freq_seek)(struct file *file, void *fh, |
546 | const struct v4l2_hw_freq_seek *a); | |
a399810c HV |
547 | |
548 | /* Debugging ioctls */ | |
549 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
bba65c13 MCC |
550 | int (*vidioc_g_register)(struct file *file, void *fh, |
551 | struct v4l2_dbg_register *reg); | |
552 | int (*vidioc_s_register)(struct file *file, void *fh, | |
553 | const struct v4l2_dbg_register *reg); | |
a399810c | 554 | |
bba65c13 MCC |
555 | int (*vidioc_g_chip_info)(struct file *file, void *fh, |
556 | struct v4l2_dbg_chip_info *chip); | |
cd634f1b | 557 | #endif |
79b0c640 | 558 | |
bba65c13 MCC |
559 | int (*vidioc_enum_framesizes)(struct file *file, void *fh, |
560 | struct v4l2_frmsizeenum *fsize); | |
74d83fa0 | 561 | |
bba65c13 MCC |
562 | int (*vidioc_enum_frameintervals)(struct file *file, void *fh, |
563 | struct v4l2_frmivalenum *fival); | |
74d83fa0 | 564 | |
b6456c0c | 565 | /* DV Timings IOCTLs */ |
bba65c13 MCC |
566 | int (*vidioc_s_dv_timings)(struct file *file, void *fh, |
567 | struct v4l2_dv_timings *timings); | |
568 | int (*vidioc_g_dv_timings)(struct file *file, void *fh, | |
569 | struct v4l2_dv_timings *timings); | |
570 | int (*vidioc_query_dv_timings)(struct file *file, void *fh, | |
571 | struct v4l2_dv_timings *timings); | |
572 | int (*vidioc_enum_dv_timings)(struct file *file, void *fh, | |
573 | struct v4l2_enum_dv_timings *timings); | |
574 | int (*vidioc_dv_timings_cap)(struct file *file, void *fh, | |
575 | struct v4l2_dv_timings_cap *cap); | |
576 | int (*vidioc_g_edid)(struct file *file, void *fh, | |
577 | struct v4l2_edid *edid); | |
578 | int (*vidioc_s_edid)(struct file *file, void *fh, | |
579 | struct v4l2_edid *edid); | |
580 | ||
581 | int (*vidioc_subscribe_event)(struct v4l2_fh *fh, | |
582 | const struct v4l2_event_subscription *sub); | |
d3d7c963 | 583 | int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, |
85f5fe39 | 584 | const struct v4l2_event_subscription *sub); |
d3d7c963 | 585 | |
a399810c | 586 | /* For other private ioctls */ |
bba65c13 MCC |
587 | long (*vidioc_default)(struct file *file, void *fh, |
588 | bool valid_prio, unsigned int cmd, void *arg); | |
a399810c HV |
589 | }; |
590 | ||
591 | ||
2864462e MCC |
592 | /* v4l debugging and diagnostics */ |
593 | ||
17028cdb HV |
594 | /* Device debug flags to be used with the video device debug attribute */ |
595 | ||
596 | /* Just log the ioctl name + error code */ | |
597 | #define V4L2_DEV_DEBUG_IOCTL 0x01 | |
598 | /* Log the ioctl name arguments + error code */ | |
599 | #define V4L2_DEV_DEBUG_IOCTL_ARG 0x02 | |
600 | /* Log the file operations open, release, mmap and get_unmapped_area */ | |
601 | #define V4L2_DEV_DEBUG_FOP 0x04 | |
602 | /* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */ | |
603 | #define V4L2_DEV_DEBUG_STREAMING 0x08 | |
604 | /* Log poll() */ | |
605 | #define V4L2_DEV_DEBUG_POLL 0x10 | |
2864462e | 606 | |
35ea11ff | 607 | /* Video standard functions */ |
bba65c13 MCC |
608 | |
609 | /** | |
610 | * v4l2_norm_to_name - Ancillary routine to analog TV standard name from its ID. | |
611 | * | |
612 | * @id: analog TV standard ID. | |
613 | * | |
614 | * Return: returns a string with the name of the analog TV standard. | |
615 | * If the standard is not found or if @id points to multiple standard, | |
616 | * it returns "Unknown". | |
617 | */ | |
618 | const char *v4l2_norm_to_name(v4l2_std_id id); | |
619 | ||
620 | /** | |
621 | * v4l2_video_std_frame_period - Ancillary routine that fills a | |
622 | * struct &v4l2_fract pointer with the default framerate fraction. | |
623 | * | |
aa2f8871 | 624 | * @id: analog TV standard ID. |
bba65c13 MCC |
625 | * @frameperiod: struct &v4l2_fract pointer to be filled |
626 | * | |
627 | */ | |
628 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); | |
629 | ||
630 | /** | |
631 | * v4l2_video_std_construct - Ancillary routine that fills in the fields of | |
632 | * a &v4l2_standard structure according to the @id parameter. | |
633 | * | |
634 | * @vs: struct &v4l2_standard pointer to be filled | |
aa2f8871 | 635 | * @id: analog TV standard ID. |
bba65c13 MCC |
636 | * @name: name of the standard to be used |
637 | * | |
638 | * .. note:: | |
639 | * | |
640 | * This ancillary routine is obsolete. Shouldn't be used on newer drivers. | |
641 | */ | |
642 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
35ea11ff | 643 | int id, const char *name); |
35ea11ff | 644 | |
aa2f8871 NS |
645 | /** |
646 | * v4l_video_std_enumstd - Ancillary routine that fills in the fields of | |
647 | * a &v4l2_standard structure according to the @id and @vs->index | |
648 | * parameters. | |
649 | * | |
650 | * @vs: struct &v4l2_standard pointer to be filled. | |
651 | * @id: analog TV standard ID. | |
652 | * | |
653 | */ | |
654 | int v4l_video_std_enumstd(struct v4l2_standard *vs, v4l2_std_id id); | |
655 | ||
bba65c13 MCC |
656 | /** |
657 | * v4l_printk_ioctl - Ancillary routine that prints the ioctl in a | |
658 | * human-readable format. | |
659 | * | |
660 | * @prefix: prefix to be added at the ioctl prints. | |
661 | * @cmd: ioctl name | |
662 | * | |
663 | * .. note:: | |
664 | * | |
665 | * If prefix != %NULL, then it will issue a | |
666 | * ``printk(KERN_DEBUG "%s: ", prefix)`` first. | |
667 | */ | |
668 | void v4l_printk_ioctl(const char *prefix, unsigned int cmd); | |
669 | ||
5a5adf6b | 670 | struct video_device; |
bba65c13 | 671 | |
35ea11ff HV |
672 | /* names for fancy debug output */ |
673 | extern const char *v4l2_field_names[]; | |
674 | extern const char *v4l2_type_names[]; | |
675 | ||
bec43661 | 676 | #ifdef CONFIG_COMPAT |
bba65c13 MCC |
677 | /** |
678 | * v4l2_compat_ioctl32 -32 Bits compatibility layer for 64 bits processors | |
679 | * | |
680 | * @file: Pointer to struct &file. | |
681 | * @cmd: Ioctl name. | |
682 | * @arg: Ioctl argument. | |
683 | */ | |
684 | long int v4l2_compat_ioctl32(struct file *file, unsigned int cmd, | |
685 | unsigned long arg); | |
bec43661 | 686 | #endif |
35ea11ff | 687 | |
bba65c13 MCC |
688 | /** |
689 | * typedef v4l2_kioctl - Typedef used to pass an ioctl handler. | |
690 | * | |
691 | * @file: Pointer to struct &file. | |
692 | * @cmd: Ioctl name. | |
693 | * @arg: Ioctl argument. | |
694 | */ | |
695 | typedef long (*v4l2_kioctl)(struct file *file, unsigned int cmd, void *arg); | |
08af245d | 696 | |
bba65c13 MCC |
697 | /** |
698 | * video_usercopy - copies data from/to userspace memory when an ioctl is | |
699 | * issued. | |
700 | * | |
701 | * @file: Pointer to struct &file. | |
702 | * @cmd: Ioctl name. | |
703 | * @arg: Ioctl argument. | |
704 | * @func: function that will handle the ioctl | |
705 | * | |
706 | * .. note:: | |
707 | * | |
708 | * This routine should be used only inside the V4L2 core. | |
709 | */ | |
710 | long int video_usercopy(struct file *file, unsigned int cmd, | |
711 | unsigned long int arg, v4l2_kioctl func); | |
35ea11ff | 712 | |
bba65c13 MCC |
713 | /** |
714 | * video_ioctl2 - Handles a V4L2 ioctl. | |
715 | * | |
716 | * @file: Pointer to struct &file. | |
717 | * @cmd: Ioctl name. | |
718 | * @arg: Ioctl argument. | |
719 | * | |
720 | * Method used to hancle an ioctl. Should be used to fill the | |
721 | * &v4l2_ioctl_ops.unlocked_ioctl on all V4L2 drivers. | |
722 | */ | |
723 | long int video_ioctl2(struct file *file, | |
724 | unsigned int cmd, unsigned long int arg); | |
8a522c91 | 725 | |
35ea11ff | 726 | #endif /* _V4L2_IOCTL_H */ |