A/UX® System Administrator's Reference Sections 1M, 7, and 8

console(7) console(7)
NAME
console - keyboard/screen driver
DESCRIPTION
The keyboard and video screen driver provides access to the
system's console keyboard and screen. Running in its default
configuration, it provides emulation of an ANSI standard screen
and keyboard combination. Various ioctl commands allow the
user to configure it for use along with the mouse in a more interactive
environment
The screen driver is a streams based driver. Before use, a line discipline
may have to be pushed onto the device's stream. Under
most conditions, this is done automatically by the operating system.
When an application opens / dev / console explicitly, and
it is not already open, it may be necessary to push such a line discipline.
There are three ways to do this.
ioctl (fd, I_PUSH, line) ;
line yush (fd) ;
/etc/line_sane fd
Unconditionally pushes a line
discipline.
Pushes a line discipline if one
is not already pushed.
Same as previous description,
but as an application in a shell
script
In the previous examples,fd is a file descriptor of the open device.
The last two methods are preferred, as they will only push a line
discipline if required and they can be used on nonstreams drivers
without adverse effects.
When / dev / console is opened with a line discipline pushed
on it, it will respond to all the ioctls and modes described in
termio(7). Without the line discipline, it will only respond to
the flags described under c cflag in termio(7). Setting the
number of bits/character to CS 8 will put the screen into reverse
video when it is in terminal emulation mode.
ANSI Compatible Escape Sequences
The terminal emulator responds to the following ANSI escape sequences.
, \b'
February, 1990
Revision C
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