termios(7) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | STANDARDS | HISTORY | SEE ALSO | COLOPHON

termios(7)           Miscellaneous Information Manual          termios(7)

NAME         top

       termios - terminal input/output settings

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <termios.h>

DESCRIPTION         top

       The termios functions describe a general terminal interface that
       is provided to control asynchronous communications ports.

   Retrieving and changing terminal settings
       tcgetattr(3)
       tcsetattr(3)

   Canonical and noncanonical mode
       See termios(3type).

   Raw mode
       cfmakeraw(3)

   Line control
       tcsendbreak(3)
       tcdrain(3)
       tcflush(3)
       tcflow(3)

   Line speed
       cfgetospeed(3)
       cfsetospeed(3)
       cfgetispeed(3)
       cfsetispeed(3)
       cfsetspeed(3)

STANDARDS         top

       POSIX.1-2024.

HISTORY         top

       POSIX.1-2001, BSD.

SEE ALSO         top

       reset(1), setterm(1), stty(1), tput(1), tset(1), tty(1),
       ioctl_console(2), ioctl_tty(2), cc_t(3type), speed_t(3type),
       tcflag_t(3type), setserial(8)

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
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Linux man-pages 6.19            2026-07-02                     termios(7)

Pages that refer to this page: FIONREAD(2const)ioctl_console(2)ioctl_tty(2)setpgid(2)TCSETS(2const)TCXONC(2const)cc_t(3type)cfmakeraw(3)_exit(3)stdin(3)tcdrain(3)tcflow(3)tcflush(3)tcsendbreak(3)tcsetattr(3)termios(3type)tty(4)pty(7)termio(7)