kbd_allocate
i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc,
int kbd_allocate(char *driver, int unit, void *id,
kbd_allocate(
i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc);
idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc);