usb/uvc/uvc_ctrl.c

2168 	struct uvc_xu_control_query *xqry)
2183 		    iter->id == xqry->unit) {
2191 			xqry->unit);
2199 		if (ctrl->index == xqry->selector - 1) {
2207 			entity->guid, xqry->selector);
2224 	switch (xqry->query) {
2254 	if (size != xqry->size) {
2270 	if (xqry->query == UVC_SET_CUR &&
2271 	    copy_from_user(data, xqry->data, size)) {
2276 	ret = uvc_query_ctrl(chain->dev, xqry->query, xqry->unit,
2277 			     chain->dev->intfnum, xqry->selector, data, size);
2281 	if (xqry->query != UVC_SET_CUR &&
2282 	    copy_to_user(xqry->data, data, size))