IGNBRK   /* Ignore break condition.  */
BRKINT   /* Signal interrupt on break.  */
IGNPAR   /* Ignore characters with parity errors.  */
PARMRK   /* Mark parity and framing errors.  */
INPCK    /* Enable input parity check.  */
ISTRIP   /* Strip 8th bit off characters.  */
INLCR    /* Map NL to CR on input.  */
IGNCR    /* Ignore CR.  */
ICRNL    /* Map CR to NL on input.  */
IUCLC    /* Map upper case to lower case on input.  */
IXON     /* Enable start/stop output control.  */
IXANY    /* Any character will restart after stop.  */
IXOFF    /* Enable start/stop input control.  */
IMAXBEL  /* Ring bell when input queue is full.  */
IUTF8    /* Input is UTF-8 */