FRM_ERR
status = read_zsreg(zport, R1) & (Rx_OVR | FRM_ERR | PAR_ERR);
(Rx_OVR | FRM_ERR | PAR_ERR | Rx_SYS | Rx_BRK))) {
if (status & (Rx_OVR | FRM_ERR | PAR_ERR)) {
} else if (status & FRM_ERR)
else if (status & FRM_ERR)
uport->read_status_mask |= FRM_ERR | PAR_ERR;
uport->ignore_status_mask |= FRM_ERR | PAR_ERR;