cons(4) [bsd man page]

CONS(4) 						     Kernel Interfaces Manual							   CONS(4)

NAME

       cons - PDP-11 console interface

DESCRIPTION

       The  console  is available to the processor through the console registers.  It acts like a normal terminal, except that typing control-P on
       the consoles of some PDP-11's puts the console in local console mode with an ODT (console debugger mode) prompt.  The operation of the con-
       sole in this mode varies per-processor.	See the PDP-11 Processor Handbook for your particular processor.

       On  an  11/44  the  console  can be put into local mode by typing a control-P.  The ODT prompt is ``>>>''.  The processor is not stopped by
       entering local console mode.  The CPU may be halted with the ``halt'' command, which may be abbreviated to ``h.''  Conversational  mode	is
       re-entered by using the command ``c'' (continue).

       On 11/73 the processor's front panel halt switch must be pressed to put the console into ODT mode.  The ODT prompt is an ``@''.	No charac-
       ters typed on the console are special while UNIX is in control of the console.

FILES

       /dev/console

SEE ALSO

       tty(4), reboot(8)
       PDP-11 Hardware Handbook specific to hardware

4th Berkeley Distribution					   July 27, 1987							   CONS(4)

console(7D)							      Devices							       console(7D)

NAME

       console - STREAMS-based console interface

SYNOPSIS

       /dev/console

DESCRIPTION

       The  file  /dev/console refers to the system console device. /dev/console should be used for interactive purposes only. Use of /dev/console
       for logging purposes is discouraged; syslog(3C) or msglog(7D) should be used instead.

       The identity of this device depends on the EEPROM or NVRAM settings in effect at the most recent system	reboot;  by  default,  it  is  the
       ``workstation  console'' device consisting of the workstation keyboard and frame buffer acting in concert to emulate an ASCII terminal (see
       wscons(7D)).

       Regardless of the system configuration, the console device provides  asynchronous serial driver semantics so that, in conjunction with  the
       STREAMS line discipline module ldterm(7M), it supports the termio(7I) terminal interface.

SEE ALSO

       syslog(3C), termios(3C), ldterm(7M), termio(7I), msglog(7D), wscons(7D)

NOTES

       In  contrast  to  pre-SunOS 5.0 releases, it is no longer possible to redirect I/O intended for /dev/console to some other device. Instead,
       redirection now applies to the workstation console device using a revised programming interface (see wscons(7D)). Since the system  console
       is normally configured to be the work station console, the overall effect is largely unchanged from previous releases.

       See  wscons(7D)	for  detailed  descriptions  of  control  sequence  syntax, ANSI control functions, control character functions and escape
       sequence functions.

SunOS 5.10							    23 Apr 1999 						       console(7D)