Symbol: USB_RALTBIT
usr/src/uts/common/io/usb/clients/usbkbm/usbkbm.c
1755
if ((mkb & USB_RALTBIT) != (lastmkb & USB_RALTBIT)) {
usr/src/uts/common/io/usb/clients/usbkbm/usbkbm.c
1756
(*func)(usbkbmd, USB_RALTKEY, mkb & USB_RALTBIT ?