usb/uvc/uvc_ctrl.c

1123 				u32 found_id, struct v4l2_queryctrl *v4l2_ctrl)
1131 	memset(v4l2_ctrl, 0, sizeof(*v4l2_ctrl));
1132 	v4l2_ctrl->id = uvc_control_classes[idx];
1133 	strscpy(v4l2_ctrl->name, v4l2_ctrl_get_name(v4l2_ctrl->id),
1134 		sizeof(v4l2_ctrl->name));
1135 	v4l2_ctrl->type = V4L2_CTRL_TYPE_CTRL_CLASS;
1136 	v4l2_ctrl->flags = V4L2_CTRL_FLAG_WRITE_ONLY
1239 	struct v4l2_queryctrl *v4l2_ctrl)
1245 	memset(v4l2_ctrl, 0, sizeof(*v4l2_ctrl));
1246 	v4l2_ctrl->id = mapping->id;
1247 	v4l2_ctrl->type = mapping->v4l2_type;
1248 	strscpy(v4l2_ctrl->name, uvc_map_get_name(mapping),
1249 		sizeof(v4l2_ctrl->name));
1250 	v4l2_ctrl->flags = 0;
1253 		v4l2_ctrl->flags |= V4L2_CTRL_FLAG_WRITE_ONLY;
1255 		v4l2_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1267 				v4l2_ctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
1277 		v4l2_ctrl->default_value = mapping->get(mapping, UVC_GET_DEF,
1283 		v4l2_ctrl->minimum = ffs(mapping->menu_mask) - 1;
1284 		v4l2_ctrl->maximum = fls(mapping->menu_mask) - 1;
1285 		v4l2_ctrl->step = 1;
1295 			if (menu_value == v4l2_ctrl->default_value) {
1296 				v4l2_ctrl->default_value = i;
1304 		v4l2_ctrl->minimum = 0;
1305 		v4l2_ctrl->maximum = 1;
1306 		v4l2_ctrl->step = 1;
1310 		v4l2_ctrl->minimum = 0;
1311 		v4l2_ctrl->maximum = 0;
1312 		v4l2_ctrl->step = 0;
1316 		v4l2_ctrl->minimum = 0;
1317 		v4l2_ctrl->maximum = uvc_get_ctrl_bitmap(ctrl, mapping);
1318 		v4l2_ctrl->step = 0;
1326 		v4l2_ctrl->minimum = mapping->get(mapping, UVC_GET_MIN,
1330 		v4l2_ctrl->maximum = mapping->get(mapping, UVC_GET_MAX,
1334 		v4l2_ctrl->step = mapping->get(mapping, UVC_GET_RES,
1341 	struct v4l2_queryctrl *v4l2_ctrl)
1352 	if (!(v4l2_ctrl->id & V4L2_CTRL_FLAG_NEXT_CTRL)) {
1353 		ret = uvc_query_v4l2_class(chain, v4l2_ctrl->id, 0, v4l2_ctrl);
1358 	ctrl = uvc_find_control(chain, v4l2_ctrl->id, &mapping);
1369 	if (v4l2_ctrl->id & V4L2_CTRL_FLAG_NEXT_CTRL) {
1370 		ret = uvc_query_v4l2_class(chain, v4l2_ctrl->id, mapping->id,
1371 					   v4l2_ctrl);
1376 	ret = __uvc_query_v4l2_ctrl(chain, ctrl, mapping, v4l2_ctrl);
1467 	struct v4l2_queryctrl v4l2_ctrl;
1469 	__uvc_query_v4l2_ctrl(chain, ctrl, mapping, &v4l2_ctrl);
1473 	ev->id = v4l2_ctrl.id;
1476 	ev->u.ctrl.type = v4l2_ctrl.type;
1477 	ev->u.ctrl.flags = v4l2_ctrl.flags;
1478 	ev->u.ctrl.minimum = v4l2_ctrl.minimum;
1479 	ev->u.ctrl.maximum = v4l2_ctrl.maximum;
1480 	ev->u.ctrl.step = v4l2_ctrl.step;
1481 	ev->u.ctrl.default_value = v4l2_ctrl.default_value;