SC16IS7XX_LSR_BI_BIT
port->read_status_mask |= SC16IS7XX_LSR_BI_BIT;
port->ignore_status_mask |= SC16IS7XX_LSR_BI_BIT;
SC16IS7XX_LSR_BI_BIT)
if (lsr & SC16IS7XX_LSR_BI_BIT) {
if (lsr & SC16IS7XX_LSR_BI_BIT)