TIOCSETN, TIOCSETP

Synopsis:

#include <sys/ioctl.h>

#define TIOCSETP        _IOW('t', 9, struct sgttyb)
#define TIOCSETN        _IOW('t',10, struct sgttyb)

Arguments to ioctl():

Argument	Value
`fd`	A file descriptor that you obtained by opening the device
`request`	TIOCSETN or TIOCSETP
Additional argument	A pointer to a struct sgttyb

Description:

These commands set a terminal's parameters. TIOCSETP flushes the tty; TIOCSETN doesn't.

Input:

A filled-in struct sgttyb (defined in <sgtty.h>):

struct sgttyb {
    char sg_ispeed; /* input speed */
    char sg_ospeed; /* output speed */
    char sg_erase;  /* erase character */
    char sg_kill;   /* kill character */
    int  sg_flags;  /* mode flags */
};

The mode flags, which are defined in <sys/termio.h> include the following:

TANDEM — send stopc when the output queue is full.
CBREAK — half-cooked mode.
LCASE — simulate lower case.
CRMOD — map \r to \r\n on output (ONLCR & ICRNL.
RAW — no I/O processing.
ODDP — get/send odd parity.
EVENP — get/send even parity.
ANYP — get any parity/send none.

as well as the following, which is defined in <termios.h>:

ECHO — enable echo.

Output: