def_req           559 dev/usb/usbf.c 	    NULL, &dev->def_req, 0, 0, usbf_do_request);
def_req           209 dev/usb/usbf_subr.c 	    NULL, &dev->def_req, 0, 0, usbf_do_request);
def_req            63 dev/usb/usbfvar.h 	usb_device_request_t	 def_req;	/* device request buffer */