193     struct usb_cdev_refdata *crd, int need_uref)  in usb_ref_device()  argument
201 	memset(crd, 0, sizeof(*crd));  in usb_ref_device()
234 		crd->do_unlock = usbd_enum_lock_sig(cpd->udev);  in usb_ref_device()
241 		crd->is_uref = 1;  in usb_ref_device()
244 		if (crd->do_unlock > 1) {  in usb_ref_device()
245 			crd->do_unlock = 0;  in usb_ref_device()
258 			crd->txfifo = f;  in usb_ref_device()
259 			crd->is_write = 1;	/* ref */  in usb_ref_device()
266 				crd->is_usbfs = 1;  in usb_ref_device()
274 			crd->rxfifo = f;  in usb_ref_device()
275 			crd->is_read = 1;	/* ref */  in usb_ref_device()
282 				crd->is_usbfs = 1;  in usb_ref_device()
288 	if (crd->is_write) {  in usb_ref_device()
290 		crd->txfifo->refcount++;  in usb_ref_device()
292 	if (crd->is_read) {  in usb_ref_device()
294 		crd->rxfifo->refcount++;  in usb_ref_device()
301 	if (crd->do_unlock)  in usb_ref_device()
304 	if (crd->is_uref) {  in usb_ref_device()
312 	memset(crd, 0, sizeof(*crd));  in usb_ref_device()
329     struct usb_cdev_refdata *crd)  in usb_usb_ref_device()  argument
334 	if (crd->is_uref)  in usb_usb_ref_device()
341 	usb_unref_device(cpd, crd);  in usb_usb_ref_device()
343 	return (usb_ref_device(cpd, crd, 1 /* need uref */));  in usb_usb_ref_device()
354     struct usb_cdev_refdata *crd)  in usb_unref_device()  argument
357 	DPRINTFN(2, "cpd=%p is_uref=%d\n", cpd, crd->is_uref);  in usb_unref_device()
359 	if (crd->do_unlock)  in usb_unref_device()
363 	if (crd->is_read) {  in usb_unref_device()
364 		if (--(crd->rxfifo->refcount) == 0) {  in usb_unref_device()
365 			cv_signal(&crd->rxfifo->cv_drain);  in usb_unref_device()
367 		crd->is_read = 0;  in usb_unref_device()
369 	if (crd->is_write) {  in usb_unref_device()
370 		if (--(crd->txfifo->refcount) == 0) {  in usb_unref_device()
371 			cv_signal(&crd->txfifo->cv_drain);  in usb_unref_device()
373 		crd->is_write = 0;  in usb_unref_device()
375 	if (crd->is_uref) {  in usb_unref_device()
376 		crd->is_uref = 0;  in usb_unref_device()
402     struct usb_cdev_refdata *crd)  in usb_fifo_create()  argument
426 			crd->txfifo = f;  in usb_fifo_create()
432 			crd->rxfifo = f;  in usb_fifo_create()
557 		crd->txfifo = udev->fifo[n + USB_FIFO_TX];  in usb_fifo_create()
560 		crd->rxfifo = udev->fifo[n + USB_FIFO_RX];  in usb_fifo_create()