Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

[media] media/usb/gspca: Add support for Scopium astro webcam (0547:7303)

This patch does not modify existing drivers. It adds subdriver
to gspca for DTCS033 (Scopium) webcam for astrophotography.
The patch adds dtcs033.c and modifies Kconfig and Makefile.

Signed-off-by: Robert Butora <robert.butora.fi@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

authored by

Robert Butora and committed by
Mauro Carvalho Chehab
30ece903 877ed143

+446
+10
drivers/media/usb/gspca/Kconfig
··· 50 50 To compile this driver as a module, choose M here: the 51 51 module will be called gspca_cpia1. 52 52 53 + config USB_GSPCA_DTCS033 54 + tristate "DTCS033 (Scopium) USB Astro-Camera Driver" 55 + depends on VIDEO_V4L2 && USB_GSPCA 56 + help 57 + Say Y here if you want support for the Scopium camera 58 + for planetary astrophotography. 59 + 60 + To compile this driver as a module, choose M here: the 61 + module will be called gspca_dtcs033. 62 + 53 63 config USB_GSPCA_ETOMS 54 64 tristate "Etoms USB Camera Driver" 55 65 depends on VIDEO_V4L2 && USB_GSPCA
+2
drivers/media/usb/gspca/Makefile
··· 2 2 obj-$(CONFIG_USB_GSPCA_BENQ) += gspca_benq.o 3 3 obj-$(CONFIG_USB_GSPCA_CONEX) += gspca_conex.o 4 4 obj-$(CONFIG_USB_GSPCA_CPIA1) += gspca_cpia1.o 5 + obj-$(CONFIG_USB_GSPCA_DTCS033) += gspca_dtcs033.o 5 6 obj-$(CONFIG_USB_GSPCA_ETOMS) += gspca_etoms.o 6 7 obj-$(CONFIG_USB_GSPCA_FINEPIX) += gspca_finepix.o 7 8 obj-$(CONFIG_USB_GSPCA_JEILINJ) += gspca_jeilinj.o ··· 49 48 gspca_benq-objs := benq.o 50 49 gspca_conex-objs := conex.o 51 50 gspca_cpia1-objs := cpia1.o 51 + gspca_dtcs033-objs := dtcs033.o 52 52 gspca_etoms-objs := etoms.o 53 53 gspca_finepix-objs := finepix.o 54 54 gspca_jeilinj-objs := jeilinj.o
+434
drivers/media/usb/gspca/dtcs033.c
··· 1 + /* 2 + * Subdriver for Scopium astro-camera (DTCS033, 0547:7303) 3 + * 4 + * Copyright (C) 2014 Robert Butora (robert.butora.fi@gmail.com) 5 + * 6 + * This program is free software; you can redistribute it and/or modify 7 + * it under the terms of the GNU General Public License as published by 8 + * the Free Software Foundation; either version 2 of the License, or 9 + * any later version. 10 + * 11 + * This program is distributed in the hope that it will be useful, 12 + * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 + * GNU General Public License for more details. 15 + */ 16 + 17 + #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 18 + #define MODULE_NAME "dtcs033" 19 + #include "gspca.h" 20 + 21 + MODULE_AUTHOR("Robert Butora <robert.butora.fi@gmail.com>"); 22 + MODULE_DESCRIPTION("Scopium DTCS033 astro-cam USB Camera Driver"); 23 + MODULE_LICENSE("GPL"); 24 + 25 + 26 + /* send a usb request */ 27 + static void reg_rw(struct gspca_dev *gspca_dev, 28 + u8 bRequestType, u8 bRequest, 29 + u16 wValue, u16 wIndex, u16 wLength) 30 + { 31 + struct usb_device *udev = gspca_dev->dev; 32 + int ret; 33 + 34 + if (gspca_dev->usb_err < 0) 35 + return; 36 + 37 + ret = usb_control_msg(udev, 38 + usb_rcvctrlpipe(udev, 0), 39 + bRequest, 40 + bRequestType, 41 + wValue, wIndex, 42 + gspca_dev->usb_buf, wLength, 500); 43 + 44 + if (ret < 0) { 45 + gspca_dev->usb_err = ret; 46 + pr_err("usb_control_msg error %d\n", ret); 47 + } 48 + 49 + return; 50 + } 51 + /* send several usb in/out requests */ 52 + static int reg_reqs(struct gspca_dev *gspca_dev, 53 + const struct usb_ctrlrequest *preqs, int n_reqs) 54 + { 55 + int i = 0; 56 + const struct usb_ctrlrequest *preq; 57 + 58 + while ((i < n_reqs) && (gspca_dev->usb_err >= 0)) { 59 + 60 + preq = &preqs[i]; 61 + 62 + reg_rw(gspca_dev, preq->bRequestType, preq->bRequest, 63 + preq->wValue, preq->wIndex, preq->wLength); 64 + 65 + if (gspca_dev->usb_err < 0) { 66 + 67 + PERR("usb error request no: %d / %d\n", 68 + i, n_reqs); 69 + } else if (preq->bRequestType & USB_DIR_IN) { 70 + 71 + PDEBUG(D_STREAM, 72 + "USB IN (%d) returned[%d] %02X %02X %02X %s", 73 + i, 74 + preq->wLength, 75 + gspca_dev->usb_buf[0], 76 + gspca_dev->usb_buf[1], 77 + gspca_dev->usb_buf[2], 78 + preq->wLength > 3 ? "...\n" : "\n"); 79 + } 80 + 81 + i++; 82 + } 83 + return gspca_dev->usb_err; 84 + } 85 + 86 + /* -- subdriver interface implementation -- */ 87 + 88 + #define DT_COLS (640) 89 + static const struct v4l2_pix_format dtcs033_mode[] = { 90 + /* raw Bayer patterned output */ 91 + {DT_COLS, 480, V4L2_PIX_FMT_GREY, V4L2_FIELD_NONE, 92 + .bytesperline = DT_COLS, 93 + .sizeimage = DT_COLS*480, 94 + .colorspace = V4L2_COLORSPACE_SRGB, 95 + }, 96 + /* this mode will demosaic the Bayer pattern */ 97 + {DT_COLS, 480, V4L2_PIX_FMT_SRGGB8, V4L2_FIELD_NONE, 98 + .bytesperline = DT_COLS, 99 + .sizeimage = DT_COLS*480, 100 + .colorspace = V4L2_COLORSPACE_SRGB, 101 + } 102 + }; 103 + 104 + /* config called at probe time */ 105 + static int sd_config(struct gspca_dev *gspca_dev, 106 + const struct usb_device_id *id) 107 + { 108 + gspca_dev->cam.cam_mode = dtcs033_mode; 109 + gspca_dev->cam.nmodes = ARRAY_SIZE(dtcs033_mode); 110 + 111 + gspca_dev->cam.bulk = 1; 112 + gspca_dev->cam.bulk_nurbs = 1; 113 + gspca_dev->cam.bulk_size = DT_COLS*512; 114 + 115 + return 0; 116 + } 117 + 118 + /* init called at probe and resume time */ 119 + static int sd_init(struct gspca_dev *gspca_dev) 120 + { 121 + return 0; 122 + } 123 + 124 + /* start stop the camera */ 125 + static int dtcs033_start(struct gspca_dev *gspca_dev); 126 + static void dtcs033_stopN(struct gspca_dev *gspca_dev); 127 + 128 + /* intercept camera image data */ 129 + static void dtcs033_pkt_scan(struct gspca_dev *gspca_dev, 130 + u8 *data, /* packet data */ 131 + int len) /* packet data length */ 132 + { 133 + /* drop incomplete frames */ 134 + if (len != DT_COLS*512) { 135 + gspca_dev->last_packet_type = DISCARD_PACKET; 136 + /* gspca.c: discard invalidates the whole frame. */ 137 + return; 138 + } 139 + 140 + /* forward complete frames */ 141 + gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0); 142 + gspca_frame_add(gspca_dev, INTER_PACKET, 143 + data + 16*DT_COLS, 144 + len - 32*DT_COLS); /* skip first & last 16 lines */ 145 + gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); 146 + 147 + return; 148 + } 149 + 150 + /* -- controls: exposure and gain -- */ 151 + 152 + static void dtcs033_setexposure(struct gspca_dev *gspca_dev, 153 + s32 expo, s32 gain) 154 + { 155 + /* gain [dB] encoding */ 156 + u16 sGain = (u16)gain; 157 + u16 gainVal = 224+(sGain-14)*(768-224)/(33-14); 158 + u16 wIndex = 0x0100|(0x00FF&gainVal); 159 + u16 wValue = (0xFF00&gainVal)>>8; 160 + 161 + /* exposure time [msec] encoding */ 162 + u16 sXTime = (u16)expo; 163 + u16 xtimeVal = (524*(150-(sXTime-1)))/150; 164 + 165 + const u8 bRequestType = 166 + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; 167 + const u8 bRequest = 0x18; 168 + 169 + reg_rw(gspca_dev, 170 + bRequestType, bRequest, wValue, wIndex, 0); 171 + if (gspca_dev->usb_err < 0) 172 + PERR("usb error in setexposure(gain) sequence.\n"); 173 + 174 + reg_rw(gspca_dev, 175 + bRequestType, bRequest, (xtimeVal<<4), 0x6300, 0); 176 + if (gspca_dev->usb_err < 0) 177 + PERR("usb error in setexposure(time) sequence.\n"); 178 + } 179 + 180 + /* specific webcam descriptor */ 181 + struct sd { 182 + struct gspca_dev gspca_dev;/* !! must be the first item */ 183 + 184 + /* exposure & gain controls */ 185 + struct { 186 + struct v4l2_ctrl *exposure; 187 + struct v4l2_ctrl *gain; 188 + }; 189 + }; 190 + 191 + static int sd_s_ctrl(struct v4l2_ctrl *ctrl) 192 + { 193 + struct gspca_dev *gspca_dev = 194 + container_of(ctrl->handler, 195 + struct gspca_dev, ctrl_handler); 196 + struct sd *sd = (struct sd *) gspca_dev; 197 + 198 + gspca_dev->usb_err = 0; 199 + 200 + if (!gspca_dev->streaming) 201 + return 0; 202 + 203 + switch (ctrl->id) { 204 + case V4L2_CID_EXPOSURE: 205 + dtcs033_setexposure(gspca_dev, 206 + ctrl->val, sd->gain->val); 207 + break; 208 + case V4L2_CID_GAIN: 209 + dtcs033_setexposure(gspca_dev, 210 + sd->exposure->val, ctrl->val); 211 + break; 212 + } 213 + return gspca_dev->usb_err; 214 + } 215 + 216 + static const struct v4l2_ctrl_ops sd_ctrl_ops = { 217 + .s_ctrl = sd_s_ctrl, 218 + }; 219 + 220 + static int dtcs033_init_controls(struct gspca_dev *gspca_dev) 221 + { 222 + struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; 223 + struct sd *sd = (struct sd *) gspca_dev; 224 + 225 + gspca_dev->vdev.ctrl_handler = hdl; 226 + v4l2_ctrl_handler_init(hdl, 2); 227 + /* min max step default */ 228 + sd->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 229 + V4L2_CID_EXPOSURE, 230 + 1, 150, 1, 75);/* [msec] */ 231 + sd->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 232 + V4L2_CID_GAIN, 233 + 14, 33, 1, 24);/* [dB] */ 234 + if (hdl->error) { 235 + PERR("Could not initialize controls: %d\n", 236 + hdl->error); 237 + return hdl->error; 238 + } 239 + 240 + v4l2_ctrl_cluster(2, &sd->exposure); 241 + return 0; 242 + } 243 + 244 + /* sub-driver description */ 245 + static const struct sd_desc sd_desc = { 246 + .name = MODULE_NAME, 247 + .config = sd_config, 248 + .init = sd_init, 249 + .start = dtcs033_start, 250 + .stopN = dtcs033_stopN, 251 + .pkt_scan = dtcs033_pkt_scan, 252 + .init_controls = dtcs033_init_controls, 253 + }; 254 + 255 + /* -- module initialisation -- */ 256 + 257 + static const struct usb_device_id device_table[] = { 258 + {USB_DEVICE(0x0547, 0x7303)}, 259 + {} 260 + }; 261 + MODULE_DEVICE_TABLE(usb, device_table); 262 + 263 + /* device connect */ 264 + static int sd_probe(struct usb_interface *intf, 265 + const struct usb_device_id *id) 266 + { 267 + return gspca_dev_probe(intf, id, 268 + &sd_desc, sizeof(struct sd), 269 + THIS_MODULE); 270 + } 271 + 272 + static struct usb_driver sd_driver = { 273 + .name = MODULE_NAME, 274 + .id_table = device_table, 275 + .probe = sd_probe, 276 + .disconnect = gspca_disconnect, 277 + #ifdef CONFIG_PM 278 + .suspend = gspca_suspend, 279 + .resume = gspca_resume, 280 + .reset_resume = gspca_resume, 281 + #endif 282 + }; 283 + module_usb_driver(sd_driver); 284 + 285 + 286 + /* --------------------------------------------------------- 287 + USB requests to start/stop the camera [USB 2.0 spec Ch.9]. 288 + 289 + bRequestType : 290 + 0x40 = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 291 + 0xC0 = USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 292 + */ 293 + static const struct usb_ctrlrequest dtcs033_start_reqs[] = { 294 + /* -- bRequest,wValue,wIndex,wLength */ 295 + { 0x40, 0x01, 0x0001, 0x000F, 0x0000 }, 296 + { 0x40, 0x01, 0x0000, 0x000F, 0x0000 }, 297 + { 0x40, 0x01, 0x0001, 0x000F, 0x0000 }, 298 + { 0x40, 0x18, 0x0000, 0x7F00, 0x0000 }, 299 + { 0x40, 0x18, 0x0000, 0x1001, 0x0000 }, 300 + { 0x40, 0x18, 0x0000, 0x0004, 0x0000 }, 301 + { 0x40, 0x18, 0x0000, 0x7F01, 0x0000 }, 302 + { 0x40, 0x18, 0x30E0, 0x0009, 0x0000 }, 303 + { 0x40, 0x18, 0x0500, 0x012C, 0x0000 }, 304 + { 0x40, 0x18, 0x0380, 0x0200, 0x0000 }, 305 + { 0x40, 0x18, 0x0000, 0x035C, 0x0000 }, 306 + { 0x40, 0x18, 0x05C0, 0x0438, 0x0000 }, 307 + { 0x40, 0x18, 0x0440, 0x0500, 0x0000 }, 308 + { 0x40, 0x18, 0x0000, 0x0668, 0x0000 }, 309 + { 0x40, 0x18, 0x0000, 0x0700, 0x0000 }, 310 + { 0x40, 0x18, 0x0000, 0x0800, 0x0000 }, 311 + { 0x40, 0x18, 0x0000, 0x0900, 0x0000 }, 312 + { 0x40, 0x18, 0x0000, 0x0A00, 0x0000 }, 313 + { 0x40, 0x18, 0x0000, 0x0B00, 0x0000 }, 314 + { 0x40, 0x18, 0x30E0, 0x6009, 0x0000 }, 315 + { 0x40, 0x18, 0x0500, 0x612C, 0x0000 }, 316 + { 0x40, 0x18, 0x2090, 0x6274, 0x0000 }, 317 + { 0x40, 0x18, 0x05C0, 0x6338, 0x0000 }, 318 + { 0x40, 0x18, 0x0000, 0x6400, 0x0000 }, 319 + { 0x40, 0x18, 0x05C0, 0x6538, 0x0000 }, 320 + { 0x40, 0x18, 0x0000, 0x6600, 0x0000 }, 321 + { 0x40, 0x18, 0x0680, 0x6744, 0x0000 }, 322 + { 0x40, 0x18, 0x0000, 0x6800, 0x0000 }, 323 + { 0x40, 0x18, 0x0000, 0x6900, 0x0000 }, 324 + { 0x40, 0x18, 0x0000, 0x6A00, 0x0000 }, 325 + { 0x40, 0x18, 0x0000, 0x6B00, 0x0000 }, 326 + { 0x40, 0x18, 0x0000, 0x6C00, 0x0000 }, 327 + { 0x40, 0x18, 0x0000, 0x6D00, 0x0000 }, 328 + { 0x40, 0x18, 0x0000, 0x6E00, 0x0000 }, 329 + { 0x40, 0x18, 0x0000, 0x808C, 0x0000 }, 330 + { 0x40, 0x18, 0x0010, 0x8101, 0x0000 }, 331 + { 0x40, 0x18, 0x30E0, 0x8200, 0x0000 }, 332 + { 0x40, 0x18, 0x0810, 0x832C, 0x0000 }, 333 + { 0x40, 0x18, 0x0680, 0x842B, 0x0000 }, 334 + { 0x40, 0x18, 0x0000, 0x8500, 0x0000 }, 335 + { 0x40, 0x18, 0x0000, 0x8600, 0x0000 }, 336 + { 0x40, 0x18, 0x0280, 0x8715, 0x0000 }, 337 + { 0x40, 0x18, 0x0000, 0x880C, 0x0000 }, 338 + { 0x40, 0x18, 0x0010, 0x8901, 0x0000 }, 339 + { 0x40, 0x18, 0x30E0, 0x8A00, 0x0000 }, 340 + { 0x40, 0x18, 0x0810, 0x8B2C, 0x0000 }, 341 + { 0x40, 0x18, 0x0680, 0x8C2B, 0x0000 }, 342 + { 0x40, 0x18, 0x0000, 0x8D00, 0x0000 }, 343 + { 0x40, 0x18, 0x0000, 0x8E00, 0x0000 }, 344 + { 0x40, 0x18, 0x0280, 0x8F15, 0x0000 }, 345 + { 0x40, 0x18, 0x0010, 0xD040, 0x0000 }, 346 + { 0x40, 0x18, 0x0000, 0xD100, 0x0000 }, 347 + { 0x40, 0x18, 0x00B0, 0xD20A, 0x0000 }, 348 + { 0x40, 0x18, 0x0000, 0xD300, 0x0000 }, 349 + { 0x40, 0x18, 0x30E2, 0xD40D, 0x0000 }, 350 + { 0x40, 0x18, 0x0001, 0xD5C0, 0x0000 }, 351 + { 0x40, 0x18, 0x00A0, 0xD60A, 0x0000 }, 352 + { 0x40, 0x18, 0x0000, 0xD700, 0x0000 }, 353 + { 0x40, 0x18, 0x0000, 0x7F00, 0x0000 }, 354 + { 0x40, 0x18, 0x0000, 0x1501, 0x0000 }, 355 + { 0x40, 0x18, 0x0001, 0x01FF, 0x0000 }, 356 + { 0x40, 0x18, 0x0000, 0x0200, 0x0000 }, 357 + { 0x40, 0x18, 0x0000, 0x0304, 0x0000 }, 358 + { 0x40, 0x18, 0x0000, 0x1101, 0x0000 }, 359 + { 0x40, 0x18, 0x0000, 0x1201, 0x0000 }, 360 + { 0x40, 0x18, 0x0000, 0x1300, 0x0000 }, 361 + { 0x40, 0x18, 0x0000, 0x1400, 0x0000 }, 362 + { 0x40, 0x18, 0x0000, 0x1601, 0x0000 }, 363 + { 0x40, 0x18, 0x0000, 0x1800, 0x0000 }, 364 + { 0x40, 0x18, 0x0000, 0x1900, 0x0000 }, 365 + { 0x40, 0x18, 0x0000, 0x1A00, 0x0000 }, 366 + { 0x40, 0x18, 0x2000, 0x1B00, 0x0000 }, 367 + { 0x40, 0x18, 0x0000, 0x1C00, 0x0000 }, 368 + { 0x40, 0x18, 0x0000, 0x2100, 0x0000 }, 369 + { 0x40, 0x18, 0x00C0, 0x228E, 0x0000 }, 370 + { 0x40, 0x18, 0x0000, 0x3001, 0x0000 }, 371 + { 0x40, 0x18, 0x0010, 0x3101, 0x0000 }, 372 + { 0x40, 0x18, 0x0008, 0x3301, 0x0000 }, 373 + { 0x40, 0x18, 0x0000, 0x3400, 0x0000 }, 374 + { 0x40, 0x18, 0x0012, 0x3549, 0x0000 }, 375 + { 0x40, 0x18, 0x0000, 0x3620, 0x0000 }, 376 + { 0x40, 0x18, 0x0001, 0x3700, 0x0000 }, 377 + { 0x40, 0x18, 0x0000, 0x4000, 0x0000 }, 378 + { 0x40, 0x18, 0xFFFF, 0x41FF, 0x0000 }, 379 + { 0x40, 0x18, 0xFFFF, 0x42FF, 0x0000 }, 380 + { 0x40, 0x18, 0x0000, 0x500F, 0x0000 }, 381 + { 0x40, 0x18, 0x2272, 0x5108, 0x0000 }, 382 + { 0x40, 0x18, 0x2272, 0x5208, 0x0000 }, 383 + { 0x40, 0x18, 0xFFFF, 0x53FF, 0x0000 }, 384 + { 0x40, 0x18, 0xFFFF, 0x54FF, 0x0000 }, 385 + { 0x40, 0x18, 0x0000, 0x6000, 0x0000 }, 386 + { 0x40, 0x18, 0x0000, 0x6102, 0x0000 }, 387 + { 0x40, 0x18, 0x0010, 0x6214, 0x0000 }, 388 + { 0x40, 0x18, 0x0C80, 0x6300, 0x0000 }, 389 + { 0x40, 0x18, 0x0000, 0x6401, 0x0000 }, 390 + { 0x40, 0x18, 0x0680, 0x6551, 0x0000 }, 391 + { 0x40, 0x18, 0xFFFF, 0x66FF, 0x0000 }, 392 + { 0x40, 0x18, 0x0000, 0x6702, 0x0000 }, 393 + { 0x40, 0x18, 0x0010, 0x6800, 0x0000 }, 394 + { 0x40, 0x18, 0x0000, 0x6900, 0x0000 }, 395 + { 0x40, 0x18, 0x0000, 0x6A00, 0x0000 }, 396 + { 0x40, 0x18, 0x0000, 0x6B00, 0x0000 }, 397 + { 0x40, 0x18, 0x0000, 0x6C00, 0x0000 }, 398 + { 0x40, 0x18, 0x0000, 0x6D01, 0x0000 }, 399 + { 0x40, 0x18, 0x0000, 0x6E00, 0x0000 }, 400 + { 0x40, 0x18, 0x0000, 0x6F00, 0x0000 }, 401 + { 0x40, 0x18, 0x0000, 0x7000, 0x0000 }, 402 + { 0x40, 0x18, 0x0001, 0x7118, 0x0000 }, 403 + { 0x40, 0x18, 0x0000, 0x2001, 0x0000 }, 404 + { 0x40, 0x18, 0x0000, 0x1101, 0x0000 }, 405 + { 0x40, 0x18, 0x0000, 0x1301, 0x0000 }, 406 + { 0x40, 0x18, 0x0000, 0x1300, 0x0000 }, 407 + { 0x40, 0x18, 0x0000, 0x1501, 0x0000 }, 408 + { 0xC0, 0x11, 0x0000, 0x24C0, 0x0003 }, 409 + { 0x40, 0x18, 0x0000, 0x3000, 0x0000 }, 410 + { 0x40, 0x18, 0x0000, 0x3620, 0x0000 }, 411 + { 0x40, 0x18, 0x0000, 0x1501, 0x0000 }, 412 + { 0x40, 0x18, 0x0010, 0x6300, 0x0000 }, 413 + { 0x40, 0x18, 0x0002, 0x01F0, 0x0000 }, 414 + { 0x40, 0x01, 0x0003, 0x000F, 0x0000 } 415 + }; 416 + 417 + static const struct usb_ctrlrequest dtcs033_stop_reqs[] = { 418 + /* -- bRequest,wValue,wIndex,wLength */ 419 + { 0x40, 0x01, 0x0001, 0x000F, 0x0000 }, 420 + { 0x40, 0x01, 0x0000, 0x000F, 0x0000 }, 421 + { 0x40, 0x18, 0x0000, 0x0003, 0x0000 } 422 + }; 423 + static int dtcs033_start(struct gspca_dev *gspca_dev) 424 + { 425 + return reg_reqs(gspca_dev, dtcs033_start_reqs, 426 + ARRAY_SIZE(dtcs033_start_reqs)); 427 + } 428 + 429 + static void dtcs033_stopN(struct gspca_dev *gspca_dev) 430 + { 431 + reg_reqs(gspca_dev, dtcs033_stop_reqs, 432 + ARRAY_SIZE(dtcs033_stop_reqs)); 433 + return; 434 + }