F81866_IRQ_MODE 256 drivers/tty/serial/8250/8250_fintek.c sio_write_mask_reg(pdata, F81866_IRQ_MODE, F81866_IRQ_SHARE, F81866_IRQ_MODE 258 drivers/tty/serial/8250/8250_fintek.c sio_write_mask_reg(pdata, F81866_IRQ_MODE, F81866_IRQ_MODE0,