taglinefilesource code
LP_EXIST331drivers/char/lp.cif ((LP_F(minor) & LP_EXIST) == 0)
LP_EXIST408drivers/char/lp.cif ((LP_F(minor) & LP_EXIST) == 0)
LP_EXIST545drivers/char/lp.cLP_F(offset) |= LP_EXIST;
LP_EXIST630drivers/char/lp.cif (LP_F(offset) & LP_EXIST)