189     struct usb_cdev_refdata *crd, int need_uref)  in usb_ref_device()  argument
197 	memset(crd, 0, sizeof(*crd));  in usb_ref_device()
230 		crd->do_unlock = usbd_enum_lock_sig(cpd->udev);  in usb_ref_device()
237 		crd->is_uref = 1;  in usb_ref_device()
240 		if (crd->do_unlock > 1) {  in usb_ref_device()
241 			crd->do_unlock = 0;  in usb_ref_device()
254 			crd->txfifo = f;  in usb_ref_device()
255 			crd->is_write = 1;	/* ref */  in usb_ref_device()
262 				crd->is_usbfs = 1;  in usb_ref_device()
270 			crd->rxfifo = f;  in usb_ref_device()
271 			crd->is_read = 1;	/* ref */  in usb_ref_device()
278 				crd->is_usbfs = 1;  in usb_ref_device()
284 	if (crd->is_write) {  in usb_ref_device()
286 		crd->txfifo->refcount++;  in usb_ref_device()
288 	if (crd->is_read) {  in usb_ref_device()
290 		crd->rxfifo->refcount++;  in usb_ref_device()
297 	if (crd->do_unlock)  in usb_ref_device()
300 	if (crd->is_uref) {  in usb_ref_device()
308 	memset(crd, 0, sizeof(*crd));  in usb_ref_device()
325     struct usb_cdev_refdata *crd)  in usb_usb_ref_device()  argument
330 	if (crd->is_uref)  in usb_usb_ref_device()
337 	usb_unref_device(cpd, crd);  in usb_usb_ref_device()
339 	return (usb_ref_device(cpd, crd, 1 /* need uref */));  in usb_usb_ref_device()
350     struct usb_cdev_refdata *crd)  in usb_unref_device()  argument
353 	DPRINTFN(2, "cpd=%p is_uref=%d\n", cpd, crd->is_uref);  in usb_unref_device()
355 	if (crd->do_unlock)  in usb_unref_device()
359 	if (crd->is_read) {  in usb_unref_device()
360 		if (--(crd->rxfifo->refcount) == 0) {  in usb_unref_device()
361 			cv_signal(&crd->rxfifo->cv_drain);  in usb_unref_device()
363 		crd->is_read = 0;  in usb_unref_device()
365 	if (crd->is_write) {  in usb_unref_device()
366 		if (--(crd->txfifo->refcount) == 0) {  in usb_unref_device()
367 			cv_signal(&crd->txfifo->cv_drain);  in usb_unref_device()
369 		crd->is_write = 0;  in usb_unref_device()
371 	if (crd->is_uref) {  in usb_unref_device()
372 		crd->is_uref = 0;  in usb_unref_device()
399     struct usb_cdev_refdata *crd)  in usb_fifo_create()  argument
423 			crd->txfifo = f;  in usb_fifo_create()
429 			crd->rxfifo = f;  in usb_fifo_create()
554 		crd->txfifo = udev->fifo[n + USB_FIFO_TX];  in usb_fifo_create()
557 		crd->rxfifo = udev->fifo[n + USB_FIFO_RX];  in usb_fifo_create()