Commit | Line | Data |
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35ea11ff HV |
1 | /* |
2 | * | |
3 | * V 4 L 2 D R I V E R H E L P E R A P I | |
4 | * | |
5 | * Moved from videodev2.h | |
6 | * | |
7 | * Some commonly needed functions for drivers (v4l2-common.o module) | |
8 | */ | |
9 | #ifndef _V4L2_IOCTL_H | |
10 | #define _V4L2_IOCTL_H | |
11 | ||
12 | #include <linux/poll.h> | |
13 | #include <linux/fs.h> | |
35ea11ff | 14 | #include <linux/mutex.h> |
174cd4b1 | 15 | #include <linux/sched/signal.h> |
35ea11ff | 16 | #include <linux/compiler.h> /* need __user */ |
35ea11ff | 17 | #include <linux/videodev2.h> |
35ea11ff | 18 | |
d3d7c963 SA |
19 | struct v4l2_fh; |
20 | ||
c91661f1 MCC |
21 | /** |
22 | * struct v4l2_ioctl_ops - describe operations for each V4L2 ioctl | |
23 | * | |
24 | * @vidioc_querycap: pointer to the function that implements | |
25 | * :ref:`VIDIOC_QUERYCAP <vidioc_querycap>` ioctl | |
26 | * @vidioc_enum_fmt_vid_cap: pointer to the function that implements | |
27 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
28 | * for video capture in single plane mode | |
29 | * @vidioc_enum_fmt_vid_overlay: pointer to the function that implements | |
30 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
31 | * for video overlay | |
32 | * @vidioc_enum_fmt_vid_out: pointer to the function that implements | |
33 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
34 | * for video output in single plane mode | |
35 | * @vidioc_enum_fmt_vid_cap_mplane: pointer to the function that implements | |
36 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
37 | * for video capture in multiplane mode | |
38 | * @vidioc_enum_fmt_vid_out_mplane: pointer to the function that implements | |
39 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
40 | * for video output in multiplane mode | |
41 | * @vidioc_enum_fmt_sdr_cap: pointer to the function that implements | |
42 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
43 | * for Software Defined Radio capture | |
44 | * @vidioc_enum_fmt_sdr_out: pointer to the function that implements | |
45 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
46 | * for Software Defined Radio output | |
fb9ffa6a LP |
47 | * @vidioc_enum_fmt_meta_cap: pointer to the function that implements |
48 | * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic | |
49 | * for metadata capture | |
c91661f1 MCC |
50 | * @vidioc_g_fmt_vid_cap: pointer to the function that implements |
51 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
52 | * in single plane mode | |
53 | * @vidioc_g_fmt_vid_overlay: pointer to the function that implements | |
54 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
55 | * @vidioc_g_fmt_vid_out: pointer to the function that implements | |
56 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out | |
57 | * in single plane mode | |
58 | * @vidioc_g_fmt_vid_out_overlay: pointer to the function that implements | |
59 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay output | |
60 | * @vidioc_g_fmt_vbi_cap: pointer to the function that implements | |
61 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture | |
62 | * @vidioc_g_fmt_vbi_out: pointer to the function that implements | |
63 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output | |
64 | * @vidioc_g_fmt_sliced_vbi_cap: pointer to the function that implements | |
65 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture | |
66 | * @vidioc_g_fmt_sliced_vbi_out: pointer to the function that implements | |
67 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output | |
68 | * @vidioc_g_fmt_vid_cap_mplane: pointer to the function that implements | |
69 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
70 | * in multiple plane mode | |
71 | * @vidioc_g_fmt_vid_out_mplane: pointer to the function that implements | |
72 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out | |
73 | * in multiplane plane mode | |
74 | * @vidioc_g_fmt_sdr_cap: pointer to the function that implements | |
75 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
76 | * Radio capture | |
77 | * @vidioc_g_fmt_sdr_out: pointer to the function that implements | |
78 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
79 | * Radio output | |
fb9ffa6a LP |
80 | * @vidioc_g_fmt_meta_cap: pointer to the function that implements |
81 | * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata capture | |
c91661f1 MCC |
82 | * @vidioc_s_fmt_vid_cap: pointer to the function that implements |
83 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
84 | * in single plane mode | |
85 | * @vidioc_s_fmt_vid_overlay: pointer to the function that implements | |
86 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
87 | * @vidioc_s_fmt_vid_out: pointer to the function that implements | |
88 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out | |
89 | * in single plane mode | |
90 | * @vidioc_s_fmt_vid_out_overlay: pointer to the function that implements | |
91 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay output | |
92 | * @vidioc_s_fmt_vbi_cap: pointer to the function that implements | |
93 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture | |
94 | * @vidioc_s_fmt_vbi_out: pointer to the function that implements | |
95 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output | |
96 | * @vidioc_s_fmt_sliced_vbi_cap: pointer to the function that implements | |
97 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture | |
98 | * @vidioc_s_fmt_sliced_vbi_out: pointer to the function that implements | |
99 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output | |
100 | * @vidioc_s_fmt_vid_cap_mplane: pointer to the function that implements | |
101 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
102 | * in multiple plane mode | |
103 | * @vidioc_s_fmt_vid_out_mplane: pointer to the function that implements | |
104 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out | |
105 | * in multiplane plane mode | |
106 | * @vidioc_s_fmt_sdr_cap: pointer to the function that implements | |
107 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
108 | * Radio capture | |
109 | * @vidioc_s_fmt_sdr_out: pointer to the function that implements | |
110 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
111 | * Radio output | |
fb9ffa6a LP |
112 | * @vidioc_s_fmt_meta_cap: pointer to the function that implements |
113 | * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata capture | |
c91661f1 MCC |
114 | * @vidioc_try_fmt_vid_cap: pointer to the function that implements |
115 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
116 | * in single plane mode | |
117 | * @vidioc_try_fmt_vid_overlay: pointer to the function that implements | |
118 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
119 | * @vidioc_try_fmt_vid_out: pointer to the function that implements | |
120 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out | |
121 | * in single plane mode | |
122 | * @vidioc_try_fmt_vid_out_overlay: pointer to the function that implements | |
123 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay | |
124 | * output | |
125 | * @vidioc_try_fmt_vbi_cap: pointer to the function that implements | |
126 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture | |
127 | * @vidioc_try_fmt_vbi_out: pointer to the function that implements | |
128 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output | |
129 | * @vidioc_try_fmt_sliced_vbi_cap: pointer to the function that implements | |
130 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI | |
131 | * capture | |
132 | * @vidioc_try_fmt_sliced_vbi_out: pointer to the function that implements | |
133 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output | |
134 | * @vidioc_try_fmt_vid_cap_mplane: pointer to the function that implements | |
135 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture | |
136 | * in multiple plane mode | |
137 | * @vidioc_try_fmt_vid_out_mplane: pointer to the function that implements | |
138 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out | |
139 | * in multiplane plane mode | |
140 | * @vidioc_try_fmt_sdr_cap: pointer to the function that implements | |
141 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
142 | * Radio capture | |
143 | * @vidioc_try_fmt_sdr_out: pointer to the function that implements | |
144 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined | |
145 | * Radio output | |
fb9ffa6a LP |
146 | * @vidioc_try_fmt_meta_cap: pointer to the function that implements |
147 | * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata capture | |
c91661f1 MCC |
148 | * @vidioc_reqbufs: pointer to the function that implements |
149 | * :ref:`VIDIOC_REQBUFS <vidioc_reqbufs>` ioctl | |
150 | * @vidioc_querybuf: pointer to the function that implements | |
151 | * :ref:`VIDIOC_QUERYBUF <vidioc_querybuf>` ioctl | |
152 | * @vidioc_qbuf: pointer to the function that implements | |
153 | * :ref:`VIDIOC_QBUF <vidioc_qbuf>` ioctl | |
154 | * @vidioc_expbuf: pointer to the function that implements | |
155 | * :ref:`VIDIOC_EXPBUF <vidioc_expbuf>` ioctl | |
156 | * @vidioc_dqbuf: pointer to the function that implements | |
157 | * :ref:`VIDIOC_DQBUF <vidioc_qbuf>` ioctl | |
158 | * @vidioc_create_bufs: pointer to the function that implements | |
159 | * :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl | |
160 | * @vidioc_prepare_buf: pointer to the function that implements | |
161 | * :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl | |
162 | * @vidioc_overlay: pointer to the function that implements | |
163 | * :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl | |
164 | * @vidioc_g_fbuf: pointer to the function that implements | |
165 | * :ref:`VIDIOC_G_FBUF <vidioc_g_fbuf>` ioctl | |
166 | * @vidioc_s_fbuf: pointer to the function that implements | |
167 | * :ref:`VIDIOC_S_FBUF <vidioc_g_fbuf>` ioctl | |
168 | * @vidioc_streamon: pointer to the function that implements | |
169 | * :ref:`VIDIOC_STREAMON <vidioc_streamon>` ioctl | |
170 | * @vidioc_streamoff: pointer to the function that implements | |
171 | * :ref:`VIDIOC_STREAMOFF <vidioc_streamon>` ioctl | |
172 | * @vidioc_g_std: pointer to the function that implements | |
173 | * :ref:`VIDIOC_G_STD <vidioc_g_std>` ioctl | |
174 | * @vidioc_s_std: pointer to the function that implements | |
175 | * :ref:`VIDIOC_S_STD <vidioc_g_std>` ioctl | |
176 | * @vidioc_querystd: pointer to the function that implements | |
177 | * :ref:`VIDIOC_QUERYSTD <vidioc_querystd>` ioctl | |
178 | * @vidioc_enum_input: pointer to the function that implements | |
179 | * :ref:`VIDIOC_ENUM_INPUT <vidioc_g_input>` ioctl | |
180 | * @vidioc_g_input: pointer to the function that implements | |
181 | * :ref:`VIDIOC_G_INPUT <vidioc_g_input>` ioctl | |
182 | * @vidioc_s_input: pointer to the function that implements | |
183 | * :ref:`VIDIOC_S_INPUT <vidioc_g_input>` ioctl | |
184 | * @vidioc_enum_output: pointer to the function that implements | |
185 | * :ref:`VIDIOC_ENUM_OUTPUT <vidioc_g_output>` ioctl | |
186 | * @vidioc_g_output: pointer to the function that implements | |
187 | * :ref:`VIDIOC_G_OUTPUT <vidioc_g_output>` ioctl | |
188 | * @vidioc_s_output: pointer to the function that implements | |
189 | * :ref:`VIDIOC_S_OUTPUT <vidioc_g_output>` ioctl | |
190 | * @vidioc_queryctrl: pointer to the function that implements | |
191 | * :ref:`VIDIOC_QUERYCTRL <vidioc_queryctrl>` ioctl | |
192 | * @vidioc_query_ext_ctrl: pointer to the function that implements | |
193 | * :ref:`VIDIOC_QUERY_EXT_CTRL <vidioc_queryctrl>` ioctl | |
194 | * @vidioc_g_ctrl: pointer to the function that implements | |
195 | * :ref:`VIDIOC_G_CTRL <vidioc_g_ctrl>` ioctl | |
196 | * @vidioc_s_ctrl: pointer to the function that implements | |
197 | * :ref:`VIDIOC_S_CTRL <vidioc_g_ctrl>` ioctl | |
198 | * @vidioc_g_ext_ctrls: pointer to the function that implements | |
199 | * :ref:`VIDIOC_G_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl | |
200 | * @vidioc_s_ext_ctrls: pointer to the function that implements | |
201 | * :ref:`VIDIOC_S_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl | |
202 | * @vidioc_try_ext_ctrls: pointer to the function that implements | |
203 | * :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl | |
204 | * @vidioc_querymenu: pointer to the function that implements | |
205 | * :ref:`VIDIOC_QUERYMENU <vidioc_queryctrl>` ioctl | |
206 | * @vidioc_enumaudio: pointer to the function that implements | |
207 | * :ref:`VIDIOC_ENUMAUDIO <vidioc_enumaudio>` ioctl | |
208 | * @vidioc_g_audio: pointer to the function that implements | |
209 | * :ref:`VIDIOC_G_AUDIO <vidioc_g_audio>` ioctl | |
210 | * @vidioc_s_audio: pointer to the function that implements | |
211 | * :ref:`VIDIOC_S_AUDIO <vidioc_g_audio>` ioctl | |
212 | * @vidioc_enumaudout: pointer to the function that implements | |
213 | * :ref:`VIDIOC_ENUMAUDOUT <vidioc_enumaudout>` ioctl | |
214 | * @vidioc_g_audout: pointer to the function that implements | |
215 | * :ref:`VIDIOC_G_AUDOUT <vidioc_g_audout>` ioctl | |
216 | * @vidioc_s_audout: pointer to the function that implements | |
217 | * :ref:`VIDIOC_S_AUDOUT <vidioc_g_audout>` ioctl | |
218 | * @vidioc_g_modulator: pointer to the function that implements | |
219 | * :ref:`VIDIOC_G_MODULATOR <vidioc_g_modulator>` ioctl | |
220 | * @vidioc_s_modulator: pointer to the function that implements | |
221 | * :ref:`VIDIOC_S_MODULATOR <vidioc_g_modulator>` ioctl | |
222 | * @vidioc_cropcap: pointer to the function that implements | |
223 | * :ref:`VIDIOC_CROPCAP <vidioc_cropcap>` ioctl | |
224 | * @vidioc_g_crop: pointer to the function that implements | |
225 | * :ref:`VIDIOC_G_CROP <vidioc_g_crop>` ioctl | |
226 | * @vidioc_s_crop: pointer to the function that implements | |
227 | * :ref:`VIDIOC_S_CROP <vidioc_g_crop>` ioctl | |
228 | * @vidioc_g_selection: pointer to the function that implements | |
229 | * :ref:`VIDIOC_G_SELECTION <vidioc_g_selection>` ioctl | |
230 | * @vidioc_s_selection: pointer to the function that implements | |
231 | * :ref:`VIDIOC_S_SELECTION <vidioc_g_selection>` ioctl | |
232 | * @vidioc_g_jpegcomp: pointer to the function that implements | |
233 | * :ref:`VIDIOC_G_JPEGCOMP <vidioc_g_jpegcomp>` ioctl | |
234 | * @vidioc_s_jpegcomp: pointer to the function that implements | |
235 | * :ref:`VIDIOC_S_JPEGCOMP <vidioc_g_jpegcomp>` ioctl | |
236 | * @vidioc_g_enc_index: pointer to the function that implements | |
237 | * :ref:`VIDIOC_G_ENC_INDEX <vidioc_g_enc_index>` ioctl | |
238 | * @vidioc_encoder_cmd: pointer to the function that implements | |
239 | * :ref:`VIDIOC_ENCODER_CMD <vidioc_encoder_cmd>` ioctl | |
240 | * @vidioc_try_encoder_cmd: pointer to the function that implements | |
241 | * :ref:`VIDIOC_TRY_ENCODER_CMD <vidioc_encoder_cmd>` ioctl | |
242 | * @vidioc_decoder_cmd: pointer to the function that implements | |
243 | * :ref:`VIDIOC_DECODER_CMD <vidioc_decoder_cmd>` ioctl | |
244 | * @vidioc_try_decoder_cmd: pointer to the function that implements | |
245 | * :ref:`VIDIOC_TRY_DECODER_CMD <vidioc_decoder_cmd>` ioctl | |
246 | * @vidioc_g_parm: pointer to the function that implements | |
247 | * :ref:`VIDIOC_G_PARM <vidioc_g_parm>` ioctl | |
248 | * @vidioc_s_parm: pointer to the function that implements | |
249 | * :ref:`VIDIOC_S_PARM <vidioc_g_parm>` ioctl | |
250 | * @vidioc_g_tuner: pointer to the function that implements | |
251 | * :ref:`VIDIOC_G_TUNER <vidioc_g_tuner>` ioctl | |
252 | * @vidioc_s_tuner: pointer to the function that implements | |
253 | * :ref:`VIDIOC_S_TUNER <vidioc_g_tuner>` ioctl | |
254 | * @vidioc_g_frequency: pointer to the function that implements | |
255 | * :ref:`VIDIOC_G_FREQUENCY <vidioc_g_frequency>` ioctl | |
256 | * @vidioc_s_frequency: pointer to the function that implements | |
257 | * :ref:`VIDIOC_S_FREQUENCY <vidioc_g_frequency>` ioctl | |
258 | * @vidioc_enum_freq_bands: pointer to the function that implements | |
259 | * :ref:`VIDIOC_ENUM_FREQ_BANDS <vidioc_enum_freq_bands>` ioctl | |
260 | * @vidioc_g_sliced_vbi_cap: pointer to the function that implements | |
261 | * :ref:`VIDIOC_G_SLICED_VBI_CAP <vidioc_g_sliced_vbi_cap>` ioctl | |
262 | * @vidioc_log_status: pointer to the function that implements | |
263 | * :ref:`VIDIOC_LOG_STATUS <vidioc_log_status>` ioctl | |
264 | * @vidioc_s_hw_freq_seek: pointer to the function that implements | |
265 | * :ref:`VIDIOC_S_HW_FREQ_SEEK <vidioc_s_hw_freq_seek>` ioctl | |
266 | * @vidioc_g_register: pointer to the function that implements | |
267 | * :ref:`VIDIOC_DBG_G_REGISTER <vidioc_dbg_g_register>` ioctl | |
268 | * @vidioc_s_register: pointer to the function that implements | |
269 | * :ref:`VIDIOC_DBG_S_REGISTER <vidioc_dbg_g_register>` ioctl | |
270 | * @vidioc_g_chip_info: pointer to the function that implements | |
271 | * :ref:`VIDIOC_DBG_G_CHIP_INFO <vidioc_dbg_g_chip_info>` ioctl | |
272 | * @vidioc_enum_framesizes: pointer to the function that implements | |
273 | * :ref:`VIDIOC_ENUM_FRAMESIZES <vidioc_enum_framesizes>` ioctl | |
274 | * @vidioc_enum_frameintervals: pointer to the function that implements | |
275 | * :ref:`VIDIOC_ENUM_FRAMEINTERVALS <vidioc_enum_frameintervals>` ioctl | |
276 | * @vidioc_s_dv_timings: pointer to the function that implements | |
277 | * :ref:`VIDIOC_S_DV_TIMINGS <vidioc_g_dv_timings>` ioctl | |
278 | * @vidioc_g_dv_timings: pointer to the function that implements | |
279 | * :ref:`VIDIOC_G_DV_TIMINGS <vidioc_g_dv_timings>` ioctl | |
280 | * @vidioc_query_dv_timings: pointer to the function that implements | |
281 | * :ref:`VIDIOC_QUERY_DV_TIMINGS <vidioc_query_dv_timings>` ioctl | |
282 | * @vidioc_enum_dv_timings: pointer to the function that implements | |
283 | * :ref:`VIDIOC_ENUM_DV_TIMINGS <vidioc_enum_dv_timings>` ioctl | |
284 | * @vidioc_dv_timings_cap: pointer to the function that implements | |
285 | * :ref:`VIDIOC_DV_TIMINGS_CAP <vidioc_dv_timings_cap>` ioctl | |
286 | * @vidioc_g_edid: pointer to the function that implements | |
287 | * :ref:`VIDIOC_G_EDID <vidioc_g_edid>` ioctl | |
288 | * @vidioc_s_edid: pointer to the function that implements | |
289 | * :ref:`VIDIOC_S_EDID <vidioc_g_edid>` ioctl | |
290 | * @vidioc_subscribe_event: pointer to the function that implements | |
291 | * :ref:`VIDIOC_SUBSCRIBE_EVENT <vidioc_subscribe_event>` ioctl | |
292 | * @vidioc_unsubscribe_event: pointer to the function that implements | |
293 | * :ref:`VIDIOC_UNSUBSCRIBE_EVENT <vidioc_unsubscribe_event>` ioctl | |
294 | * @vidioc_default: pointed used to allow other ioctls | |
295 | */ | |
a399810c HV |
296 | struct v4l2_ioctl_ops { |
297 | /* ioctl callbacks */ | |
298 | ||
299 | /* VIDIOC_QUERYCAP handler */ | |
bba65c13 MCC |
300 | int (*vidioc_querycap)(struct file *file, void *fh, |
301 | struct v4l2_capability *cap); | |
a399810c | 302 | |
a399810c | 303 | /* VIDIOC_ENUM_FMT handlers */ |
bba65c13 MCC |
304 | int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *fh, |
305 | struct v4l2_fmtdesc *f); | |
306 | int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *fh, | |
307 | struct v4l2_fmtdesc *f); | |
308 | int (*vidioc_enum_fmt_vid_out)(struct file *file, void *fh, | |
309 | struct v4l2_fmtdesc *f); | |
d14e6d76 PO |
310 | int (*vidioc_enum_fmt_vid_cap_mplane)(struct file *file, void *fh, |
311 | struct v4l2_fmtdesc *f); | |
312 | int (*vidioc_enum_fmt_vid_out_mplane)(struct file *file, void *fh, | |
313 | struct v4l2_fmtdesc *f); | |
bba65c13 MCC |
314 | int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *fh, |
315 | struct v4l2_fmtdesc *f); | |
316 | int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *fh, | |
317 | struct v4l2_fmtdesc *f); | |
fb9ffa6a LP |
318 | int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *fh, |
319 | struct v4l2_fmtdesc *f); | |
a399810c HV |
320 | |
321 | /* VIDIOC_G_FMT handlers */ | |
bba65c13 MCC |
322 | int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh, |
323 | struct v4l2_format *f); | |
a399810c HV |
324 | int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, |
325 | struct v4l2_format *f); | |
bba65c13 MCC |
326 | int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh, |
327 | struct v4l2_format *f); | |
a399810c | 328 | int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, |
bba65c13 MCC |
329 | struct v4l2_format *f); |
330 | int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh, | |
331 | struct v4l2_format *f); | |
332 | int (*vidioc_g_fmt_vbi_out)(struct file *file, void *fh, | |
333 | struct v4l2_format *f); | |
a399810c | 334 | int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
bba65c13 | 335 | struct v4l2_format *f); |
a399810c | 336 | int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, |
bba65c13 | 337 | struct v4l2_format *f); |
d14e6d76 PO |
338 | int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, |
339 | struct v4l2_format *f); | |
340 | int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, | |
341 | struct v4l2_format *f); | |
bba65c13 MCC |
342 | int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *fh, |
343 | struct v4l2_format *f); | |
344 | int (*vidioc_g_fmt_sdr_out)(struct file *file, void *fh, | |
345 | struct v4l2_format *f); | |
fb9ffa6a LP |
346 | int (*vidioc_g_fmt_meta_cap)(struct file *file, void *fh, |
347 | struct v4l2_format *f); | |
a399810c HV |
348 | |
349 | /* VIDIOC_S_FMT handlers */ | |
bba65c13 MCC |
350 | int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh, |
351 | struct v4l2_format *f); | |
a399810c HV |
352 | int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, |
353 | struct v4l2_format *f); | |
bba65c13 MCC |
354 | int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh, |
355 | struct v4l2_format *f); | |
a399810c | 356 | int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, |
bba65c13 MCC |
357 | struct v4l2_format *f); |
358 | int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh, | |
359 | struct v4l2_format *f); | |
360 | int (*vidioc_s_fmt_vbi_out)(struct file *file, void *fh, | |
361 | struct v4l2_format *f); | |
a399810c | 362 | int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
bba65c13 | 363 | struct v4l2_format *f); |
a399810c | 364 | int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, |
bba65c13 | 365 | struct v4l2_format *f); |
d14e6d76 PO |
366 | int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, |
367 | struct v4l2_format *f); | |
368 | int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, | |
369 | struct v4l2_format *f); | |
bba65c13 MCC |
370 | int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *fh, |
371 | struct v4l2_format *f); | |
372 | int (*vidioc_s_fmt_sdr_out)(struct file *file, void *fh, | |
373 | struct v4l2_format *f); | |
fb9ffa6a LP |
374 | int (*vidioc_s_fmt_meta_cap)(struct file *file, void *fh, |
375 | struct v4l2_format *f); | |
a399810c HV |
376 | |
377 | /* VIDIOC_TRY_FMT handlers */ | |
bba65c13 MCC |
378 | int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh, |
379 | struct v4l2_format *f); | |
a399810c HV |
380 | int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, |
381 | struct v4l2_format *f); | |
bba65c13 MCC |
382 | int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh, |
383 | struct v4l2_format *f); | |
a399810c | 384 | int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, |
bba65c13 MCC |
385 | struct v4l2_format *f); |
386 | int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh, | |
387 | struct v4l2_format *f); | |
388 | int (*vidioc_try_fmt_vbi_out)(struct file *file, void *fh, | |
389 | struct v4l2_format *f); | |
a399810c | 390 | int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
bba65c13 | 391 | struct v4l2_format *f); |
a399810c | 392 | int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, |
bba65c13 | 393 | struct v4l2_format *f); |
d14e6d76 PO |
394 | int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, |
395 | struct v4l2_format *f); | |
396 | int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, | |
397 | struct v4l2_format *f); | |
bba65c13 MCC |
398 | int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *fh, |
399 | struct v4l2_format *f); | |
400 | int (*vidioc_try_fmt_sdr_out)(struct file *file, void *fh, | |
401 | struct v4l2_format *f); | |
fb9ffa6a LP |
402 | int (*vidioc_try_fmt_meta_cap)(struct file *file, void *fh, |
403 | struct v4l2_format *f); | |
a399810c HV |
404 | |
405 | /* Buffer handlers */ | |
bba65c13 MCC |
406 | int (*vidioc_reqbufs)(struct file *file, void *fh, |
407 | struct v4l2_requestbuffers *b); | |
408 | int (*vidioc_querybuf)(struct file *file, void *fh, | |
409 | struct v4l2_buffer *b); | |
410 | int (*vidioc_qbuf)(struct file *file, void *fh, | |
411 | struct v4l2_buffer *b); | |
412 | int (*vidioc_expbuf)(struct file *file, void *fh, | |
413 | struct v4l2_exportbuffer *e); | |
414 | int (*vidioc_dqbuf)(struct file *file, void *fh, | |
415 | struct v4l2_buffer *b); | |
416 | ||
417 | int (*vidioc_create_bufs)(struct file *file, void *fh, | |
418 | struct v4l2_create_buffers *b); | |
419 | int (*vidioc_prepare_buf)(struct file *file, void *fh, | |
420 | struct v4l2_buffer *b); | |
421 | ||
422 | int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i); | |
423 | int (*vidioc_g_fbuf)(struct file *file, void *fh, | |
424 | struct v4l2_framebuffer *a); | |
425 | int (*vidioc_s_fbuf)(struct file *file, void *fh, | |
426 | const struct v4l2_framebuffer *a); | |
a399810c HV |
427 | |
428 | /* Stream on/off */ | |
bba65c13 MCC |
429 | int (*vidioc_streamon)(struct file *file, void *fh, |
430 | enum v4l2_buf_type i); | |
431 | int (*vidioc_streamoff)(struct file *file, void *fh, | |
432 | enum v4l2_buf_type i); | |
433 | ||
434 | /* | |
435 | * Standard handling | |
436 | * | |
437 | * Note: ENUMSTD is handled by videodev.c | |
a399810c | 438 | */ |
bba65c13 MCC |
439 | int (*vidioc_g_std)(struct file *file, void *fh, v4l2_std_id *norm); |
440 | int (*vidioc_s_std)(struct file *file, void *fh, v4l2_std_id norm); | |
441 | int (*vidioc_querystd)(struct file *file, void *fh, v4l2_std_id *a); | |
a399810c HV |
442 | |
443 | /* Input handling */ | |
444 | int (*vidioc_enum_input)(struct file *file, void *fh, | |
445 | struct v4l2_input *inp); | |
bba65c13 MCC |
446 | int (*vidioc_g_input)(struct file *file, void *fh, unsigned int *i); |
447 | int (*vidioc_s_input)(struct file *file, void *fh, unsigned int i); | |
a399810c HV |
448 | |
449 | /* Output handling */ | |
bba65c13 | 450 | int (*vidioc_enum_output)(struct file *file, void *fh, |
a399810c | 451 | struct v4l2_output *a); |
bba65c13 MCC |
452 | int (*vidioc_g_output)(struct file *file, void *fh, unsigned int *i); |
453 | int (*vidioc_s_output)(struct file *file, void *fh, unsigned int i); | |
a399810c HV |
454 | |
455 | /* Control handling */ | |
bba65c13 MCC |
456 | int (*vidioc_queryctrl)(struct file *file, void *fh, |
457 | struct v4l2_queryctrl *a); | |
458 | int (*vidioc_query_ext_ctrl)(struct file *file, void *fh, | |
459 | struct v4l2_query_ext_ctrl *a); | |
460 | int (*vidioc_g_ctrl)(struct file *file, void *fh, | |
461 | struct v4l2_control *a); | |
462 | int (*vidioc_s_ctrl)(struct file *file, void *fh, | |
463 | struct v4l2_control *a); | |
464 | int (*vidioc_g_ext_ctrls)(struct file *file, void *fh, | |
465 | struct v4l2_ext_controls *a); | |
466 | int (*vidioc_s_ext_ctrls)(struct file *file, void *fh, | |
467 | struct v4l2_ext_controls *a); | |
468 | int (*vidioc_try_ext_ctrls)(struct file *file, void *fh, | |
469 | struct v4l2_ext_controls *a); | |
470 | int (*vidioc_querymenu)(struct file *file, void *fh, | |
471 | struct v4l2_querymenu *a); | |
a399810c HV |
472 | |
473 | /* Audio ioctls */ | |
bba65c13 MCC |
474 | int (*vidioc_enumaudio)(struct file *file, void *fh, |
475 | struct v4l2_audio *a); | |
476 | int (*vidioc_g_audio)(struct file *file, void *fh, | |
477 | struct v4l2_audio *a); | |
478 | int (*vidioc_s_audio)(struct file *file, void *fh, | |
479 | const struct v4l2_audio *a); | |
a399810c HV |
480 | |
481 | /* Audio out ioctls */ | |
bba65c13 MCC |
482 | int (*vidioc_enumaudout)(struct file *file, void *fh, |
483 | struct v4l2_audioout *a); | |
484 | int (*vidioc_g_audout)(struct file *file, void *fh, | |
485 | struct v4l2_audioout *a); | |
486 | int (*vidioc_s_audout)(struct file *file, void *fh, | |
487 | const struct v4l2_audioout *a); | |
488 | int (*vidioc_g_modulator)(struct file *file, void *fh, | |
489 | struct v4l2_modulator *a); | |
490 | int (*vidioc_s_modulator)(struct file *file, void *fh, | |
491 | const struct v4l2_modulator *a); | |
a399810c | 492 | /* Crop ioctls */ |
bba65c13 MCC |
493 | int (*vidioc_cropcap)(struct file *file, void *fh, |
494 | struct v4l2_cropcap *a); | |
495 | int (*vidioc_g_crop)(struct file *file, void *fh, | |
496 | struct v4l2_crop *a); | |
497 | int (*vidioc_s_crop)(struct file *file, void *fh, | |
498 | const struct v4l2_crop *a); | |
499 | int (*vidioc_g_selection)(struct file *file, void *fh, | |
500 | struct v4l2_selection *s); | |
501 | int (*vidioc_s_selection)(struct file *file, void *fh, | |
502 | struct v4l2_selection *s); | |
a399810c | 503 | /* Compression ioctls */ |
bba65c13 MCC |
504 | int (*vidioc_g_jpegcomp)(struct file *file, void *fh, |
505 | struct v4l2_jpegcompression *a); | |
506 | int (*vidioc_s_jpegcomp)(struct file *file, void *fh, | |
507 | const struct v4l2_jpegcompression *a); | |
508 | int (*vidioc_g_enc_index)(struct file *file, void *fh, | |
509 | struct v4l2_enc_idx *a); | |
510 | int (*vidioc_encoder_cmd)(struct file *file, void *fh, | |
511 | struct v4l2_encoder_cmd *a); | |
512 | int (*vidioc_try_encoder_cmd)(struct file *file, void *fh, | |
513 | struct v4l2_encoder_cmd *a); | |
514 | int (*vidioc_decoder_cmd)(struct file *file, void *fh, | |
515 | struct v4l2_decoder_cmd *a); | |
516 | int (*vidioc_try_decoder_cmd)(struct file *file, void *fh, | |
517 | struct v4l2_decoder_cmd *a); | |
a399810c HV |
518 | |
519 | /* Stream type-dependent parameter ioctls */ | |
bba65c13 MCC |
520 | int (*vidioc_g_parm)(struct file *file, void *fh, |
521 | struct v4l2_streamparm *a); | |
522 | int (*vidioc_s_parm)(struct file *file, void *fh, | |
523 | struct v4l2_streamparm *a); | |
a399810c HV |
524 | |
525 | /* Tuner ioctls */ | |
bba65c13 MCC |
526 | int (*vidioc_g_tuner)(struct file *file, void *fh, |
527 | struct v4l2_tuner *a); | |
528 | int (*vidioc_s_tuner)(struct file *file, void *fh, | |
529 | const struct v4l2_tuner *a); | |
530 | int (*vidioc_g_frequency)(struct file *file, void *fh, | |
531 | struct v4l2_frequency *a); | |
532 | int (*vidioc_s_frequency)(struct file *file, void *fh, | |
533 | const struct v4l2_frequency *a); | |
534 | int (*vidioc_enum_freq_bands)(struct file *file, void *fh, | |
535 | struct v4l2_frequency_band *band); | |
a399810c HV |
536 | |
537 | /* Sliced VBI cap */ | |
bba65c13 MCC |
538 | int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *fh, |
539 | struct v4l2_sliced_vbi_cap *a); | |
a399810c HV |
540 | |
541 | /* Log status ioctl */ | |
bba65c13 | 542 | int (*vidioc_log_status)(struct file *file, void *fh); |
a399810c | 543 | |
bba65c13 MCC |
544 | int (*vidioc_s_hw_freq_seek)(struct file *file, void *fh, |
545 | const struct v4l2_hw_freq_seek *a); | |
a399810c HV |
546 | |
547 | /* Debugging ioctls */ | |
548 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
bba65c13 MCC |
549 | int (*vidioc_g_register)(struct file *file, void *fh, |
550 | struct v4l2_dbg_register *reg); | |
551 | int (*vidioc_s_register)(struct file *file, void *fh, | |
552 | const struct v4l2_dbg_register *reg); | |
a399810c | 553 | |
bba65c13 MCC |
554 | int (*vidioc_g_chip_info)(struct file *file, void *fh, |
555 | struct v4l2_dbg_chip_info *chip); | |
cd634f1b | 556 | #endif |
79b0c640 | 557 | |
bba65c13 MCC |
558 | int (*vidioc_enum_framesizes)(struct file *file, void *fh, |
559 | struct v4l2_frmsizeenum *fsize); | |
74d83fa0 | 560 | |
bba65c13 MCC |
561 | int (*vidioc_enum_frameintervals)(struct file *file, void *fh, |
562 | struct v4l2_frmivalenum *fival); | |
74d83fa0 | 563 | |
b6456c0c | 564 | /* DV Timings IOCTLs */ |
bba65c13 MCC |
565 | int (*vidioc_s_dv_timings)(struct file *file, void *fh, |
566 | struct v4l2_dv_timings *timings); | |
567 | int (*vidioc_g_dv_timings)(struct file *file, void *fh, | |
568 | struct v4l2_dv_timings *timings); | |
569 | int (*vidioc_query_dv_timings)(struct file *file, void *fh, | |
570 | struct v4l2_dv_timings *timings); | |
571 | int (*vidioc_enum_dv_timings)(struct file *file, void *fh, | |
572 | struct v4l2_enum_dv_timings *timings); | |
573 | int (*vidioc_dv_timings_cap)(struct file *file, void *fh, | |
574 | struct v4l2_dv_timings_cap *cap); | |
575 | int (*vidioc_g_edid)(struct file *file, void *fh, | |
576 | struct v4l2_edid *edid); | |
577 | int (*vidioc_s_edid)(struct file *file, void *fh, | |
578 | struct v4l2_edid *edid); | |
579 | ||
580 | int (*vidioc_subscribe_event)(struct v4l2_fh *fh, | |
581 | const struct v4l2_event_subscription *sub); | |
d3d7c963 | 582 | int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, |
85f5fe39 | 583 | const struct v4l2_event_subscription *sub); |
d3d7c963 | 584 | |
a399810c | 585 | /* For other private ioctls */ |
bba65c13 MCC |
586 | long (*vidioc_default)(struct file *file, void *fh, |
587 | bool valid_prio, unsigned int cmd, void *arg); | |
a399810c HV |
588 | }; |
589 | ||
590 | ||
2864462e MCC |
591 | /* v4l debugging and diagnostics */ |
592 | ||
17028cdb HV |
593 | /* Device debug flags to be used with the video device debug attribute */ |
594 | ||
595 | /* Just log the ioctl name + error code */ | |
596 | #define V4L2_DEV_DEBUG_IOCTL 0x01 | |
597 | /* Log the ioctl name arguments + error code */ | |
598 | #define V4L2_DEV_DEBUG_IOCTL_ARG 0x02 | |
599 | /* Log the file operations open, release, mmap and get_unmapped_area */ | |
600 | #define V4L2_DEV_DEBUG_FOP 0x04 | |
601 | /* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */ | |
602 | #define V4L2_DEV_DEBUG_STREAMING 0x08 | |
603 | /* Log poll() */ | |
604 | #define V4L2_DEV_DEBUG_POLL 0x10 | |
2864462e | 605 | |
35ea11ff | 606 | /* Video standard functions */ |
bba65c13 MCC |
607 | |
608 | /** | |
609 | * v4l2_norm_to_name - Ancillary routine to analog TV standard name from its ID. | |
610 | * | |
611 | * @id: analog TV standard ID. | |
612 | * | |
613 | * Return: returns a string with the name of the analog TV standard. | |
614 | * If the standard is not found or if @id points to multiple standard, | |
615 | * it returns "Unknown". | |
616 | */ | |
617 | const char *v4l2_norm_to_name(v4l2_std_id id); | |
618 | ||
619 | /** | |
620 | * v4l2_video_std_frame_period - Ancillary routine that fills a | |
621 | * struct &v4l2_fract pointer with the default framerate fraction. | |
622 | * | |
623 | * @id: analog TV sdandard ID. | |
624 | * @frameperiod: struct &v4l2_fract pointer to be filled | |
625 | * | |
626 | */ | |
627 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); | |
628 | ||
629 | /** | |
630 | * v4l2_video_std_construct - Ancillary routine that fills in the fields of | |
631 | * a &v4l2_standard structure according to the @id parameter. | |
632 | * | |
633 | * @vs: struct &v4l2_standard pointer to be filled | |
634 | * @id: analog TV sdandard ID. | |
635 | * @name: name of the standard to be used | |
636 | * | |
637 | * .. note:: | |
638 | * | |
639 | * This ancillary routine is obsolete. Shouldn't be used on newer drivers. | |
640 | */ | |
641 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
35ea11ff | 642 | int id, const char *name); |
35ea11ff | 643 | |
bba65c13 MCC |
644 | /** |
645 | * v4l_printk_ioctl - Ancillary routine that prints the ioctl in a | |
646 | * human-readable format. | |
647 | * | |
648 | * @prefix: prefix to be added at the ioctl prints. | |
649 | * @cmd: ioctl name | |
650 | * | |
651 | * .. note:: | |
652 | * | |
653 | * If prefix != %NULL, then it will issue a | |
654 | * ``printk(KERN_DEBUG "%s: ", prefix)`` first. | |
655 | */ | |
656 | void v4l_printk_ioctl(const char *prefix, unsigned int cmd); | |
657 | ||
5a5adf6b | 658 | struct video_device; |
bba65c13 MCC |
659 | |
660 | ||
661 | /** | |
662 | * v4l2_ioctl_get_lock - get the mutex (if any) that it is need to lock for | |
663 | * a given command. | |
664 | * | |
665 | * @vdev: Pointer to struct &video_device. | |
666 | * @cmd: Ioctl name. | |
667 | * | |
668 | * .. note:: Internal use only. Should not be used outside V4L2 core. | |
669 | */ | |
670 | struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned int cmd); | |
5a5adf6b | 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 */ |