SC16IS7XX_LCR_REG
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr);
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, SC16IS7XX_LCR_WORD_LEN_8);
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, 0x00);
one->old_lcr = sc16is7xx_port_read(port, SC16IS7XX_LCR_REG);
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, register_set);
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, one->old_lcr);
sc16is7xx_port_update(port, SC16IS7XX_LCR_REG,