update_kbd_state
update_kbd_state(scp, scp->status, LOCK_MASK, FALSE);
update_kbd_state(sc->cur_scp, sc->cur_scp->status,
update_kbd_state(scp, scp->status, SLKED, TRUE);
update_kbd_state(sc->cur_scp, sc->cur_scp->status,
static int update_kbd_state(scr_stat *scp, int state, int mask, int unlock);
update_kbd_state(scp, scp->status, LOCK_MASK, TRUE);
update_kbd_state(scp, scp->status, LOCK_MASK, FALSE);