XXX              1577 arch/i386/isa/pccom.c 	XXX NEEDS TO BE FIXED XXX
XXX               772 dev/usb/ucom.c XXX;
XXX               895 dev/usb/ucom.c XXX what if the hardware is not open
XXX               915 dev/usb/ucom.c XXX
XXX               548 dev/usb/usbdi.c XXX should we do this?