192     struct usb_cdev_refdata *crd, int need_uref)  in usb_ref_device()  argument
200 	memset(crd, 0, sizeof(*crd));  in usb_ref_device()
233 		crd->do_unlock = usbd_enum_lock_sig(cpd->udev);  in usb_ref_device()
240 		crd->is_uref = 1;  in usb_ref_device()
243 		if (crd->do_unlock > 1) {  in usb_ref_device()
244 			crd->do_unlock = 0;  in usb_ref_device()
257 			crd->txfifo = f;  in usb_ref_device()
258 			crd->is_write = 1;	/* ref */  in usb_ref_device()
265 				crd->is_usbfs = 1;  in usb_ref_device()
273 			crd->rxfifo = f;  in usb_ref_device()
274 			crd->is_read = 1;	/* ref */  in usb_ref_device()
281 				crd->is_usbfs = 1;  in usb_ref_device()
287 	if (crd->is_write) {  in usb_ref_device()
289 		crd->txfifo->refcount++;  in usb_ref_device()
291 	if (crd->is_read) {  in usb_ref_device()
293 		crd->rxfifo->refcount++;  in usb_ref_device()
300 	if (crd->do_unlock)  in usb_ref_device()
303 	if (crd->is_uref) {  in usb_ref_device()
311 	memset(crd, 0, sizeof(*crd));  in usb_ref_device()
328     struct usb_cdev_refdata *crd)  in usb_usb_ref_device()  argument
333 	if (crd->is_uref)  in usb_usb_ref_device()
340 	usb_unref_device(cpd, crd);  in usb_usb_ref_device()
342 	return (usb_ref_device(cpd, crd, 1 /* need uref */));  in usb_usb_ref_device()
353     struct usb_cdev_refdata *crd)  in usb_unref_device()  argument
356 	DPRINTFN(2, "cpd=%p is_uref=%d\n", cpd, crd->is_uref);  in usb_unref_device()
358 	if (crd->do_unlock)  in usb_unref_device()
362 	if (crd->is_read) {  in usb_unref_device()
363 		if (--(crd->rxfifo->refcount) == 0) {  in usb_unref_device()
364 			cv_signal(&crd->rxfifo->cv_drain);  in usb_unref_device()
366 		crd->is_read = 0;  in usb_unref_device()
368 	if (crd->is_write) {  in usb_unref_device()
369 		if (--(crd->txfifo->refcount) == 0) {  in usb_unref_device()
370 			cv_signal(&crd->txfifo->cv_drain);  in usb_unref_device()
372 		crd->is_write = 0;  in usb_unref_device()
374 	if (crd->is_uref) {  in usb_unref_device()
375 		crd->is_uref = 0;  in usb_unref_device()
403     struct usb_cdev_refdata *crd)  in usb_fifo_create()  argument
427 			crd->txfifo = f;  in usb_fifo_create()
433 			crd->rxfifo = f;  in usb_fifo_create()
560 		crd->txfifo = udev->fifo[n + USB_FIFO_TX];  in usb_fifo_create()
563 		crd->rxfifo = udev->fifo[n + USB_FIFO_RX];  in usb_fifo_create()