690     struct usbdevfs_urb *urb = calloc(1, sizeof(struct usbdevfs_urb));  in usb_request_new()  local
691     if (!urb)  in usb_request_new()
695         urb->type = USBDEVFS_URB_TYPE_BULK;  in usb_request_new()
697         urb->type = USBDEVFS_URB_TYPE_INTERRUPT;  in usb_request_new()
700         free(urb);  in usb_request_new()
703     urb->endpoint = ep_desc->bEndpointAddress;  in usb_request_new()
707         free(urb);  in usb_request_new()
713     req->private_data = urb;  in usb_request_new()
714     req->endpoint = urb->endpoint;  in usb_request_new()
715     urb->usercontext = req;  in usb_request_new()
728     struct usbdevfs_urb *urb = (struct usbdevfs_urb*)req->private_data;  in usb_request_queue()  local
731     urb->status = -1;  in usb_request_queue()
732     urb->buffer = req->buffer;  in usb_request_queue()
733     urb->buffer_length = req->buffer_length;  in usb_request_queue()
736         res = ioctl(req->dev->fd, USBDEVFS_SUBMITURB, urb);  in usb_request_queue()
758     struct usbdevfs_urb *urb = NULL;  in usb_request_wait()  local
760                                        USBDEVFS_REAPURBNDELAY, &urb));  in usb_request_wait()
767         D("[ urb @%p status = %d, actual = %d ]\n", urb, urb->status, urb->actual_length);  in usb_request_wait()
769         struct usb_request *req = (struct usb_request*)urb->usercontext;  in usb_request_wait()
770         req->actual_length = urb->actual_length;  in usb_request_wait()
778     struct usbdevfs_urb *urb = ((struct usbdevfs_urb*)req->private_data);  in usb_request_cancel()  local
779     return ioctl(req->dev->fd, USBDEVFS_DISCARDURB, urb);  in usb_request_cancel()