termio - the System V terminal driver interface
termio is the name of the old System V terminal driver interface. This
interface defined a termio structure used to store terminal settings,
and a range of ioctl(2) operations to get and set terminal attributes.
The termio interface is now obsolete: POSIX.1-1990 standardized a
modified version of this interface, under the name termios. The
POSIX.1 data structure differs slightly from the System V version, and
POSIX.1 defined a suite of functions to replace the various ioctl(2)
operations that existed in System V. (This was done because ioctl(2)
was unstandardized, and its variadic third argument does not allow
argument type checking.)
If you’re looking for page called "termio", then you can probably find
most of the information that you seek in either termios(3) or
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.