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)

cvc(7D) 							      Devices								   cvc(7D)

NAME

       cvc - virtual console driver

DESCRIPTION

       The  cvc  virtual  console  driver  is a STREAMS-based pseudo driver that supports the network console. The cvc driver interfaces with con-
       sole(7D).

       Logically, the  cvc driver sits below the  console driver. It redirects console output to the cvcredir(7D) driver if a network console con-
       nection is active. If a network console connection is not active, it redirects console output to an internal hardware interface.

       The cvc driver receives console input from  cvcredir and internal hardware and passes it to the process associated with /dev/console.

NOTES

       The   cvc facility supersedes the SunOS wscons(7D) facility, which should  not be used in conjunction with  cvc. The  wscons driver is use-
       ful for systems with directly attached consoles (frame buffers and keyboards), but is not useful with platforms using cvc,  which  have	no
       local keyboard or frame buffer.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+--------------------------------------+
       |  ATTRIBUTE TYPE    |		ATTRIBUTE VALUE 	   |
       +--------------------+--------------------------------------+
       |Architecture	    |Sun  Enterprise  10000  servers,  Sun |
       |		    |Fire 15000 servers 		   |
       +--------------------+--------------------------------------+
       |Availability	    |SUNWcvc.u				   |
       +--------------------+--------------------------------------+

SEE ALSO

       cvcd(1M), attributes(5), console(7D), cvcredir(7D), wscons(7D)

       Sun Enterprise 10000 SSP Reference Manual

       Sun System Management Services (SMS) Reference Manual

SunOS 5.11							    15 Sep 2000 							   cvc(7D)