Module constants 

Constants

FIONBIO

Not recommended, should use POSIX O_NONBLOCK instead.

FIONREAD

Get the number of bytes in the input buffer.

SIOCATMARK

POSIX sockatmark() from sys/socket.h is intended to replace this.

TCFLSH

Equivalent to tcflush(fd, arg).

TCGETS

Equivalent to tcgetattr(fd, argp). Get the current serial port settings.

TCSBRK

Equivalent to tcsendbreak(fd, arg).

TCSETS

Equivalent to tcsetattr(fd, TCSANOW, argp). Set the current serial port settings.

TCSETSF

Equivalent to tcsetattr(fd, TCSAFLUSH, argp). Allow the output buffer to drain, discard pending input, and set the current serial port settings.

TCSETSW

Equivalent to tcsetattr(fd, TCSADRAIN, argp). Allow the output buffer to drain, and set the current serial port settings.

TCXONC

Equivalent to tcflow(fd, arg).

TIOCGPGRP

When successful, equivalent to *argp = tcgetpgrp(fd). Get the process group ID of the foreground process group on this terminal.

TIOCGPTLCK

Place the current lock state of the pseudoterminal slave device in the location pointed to by lock.

TIOCGPTN

Obtain device unit number, which can be used to generate the filename of the pseudo-terminal slave device.

TIOCGSID

When successful, equivalent to *argp = tcgetsid(fd). Get the session ID of the given terminal.

TIOCGWINSZ

Get window size.

TIOCSCTTY

Make the given terminal the controlling terminal of the calling process.

TIOCSPGRP

Equivalent to tcsetpgrp(fd, *argp).

TIOCSPTLCK

Set (if *lock is nonzero) or remove (if *lock is zero) the lock on the pseudoterminal slave device.

TIOCSWINSZ

Set window size.