1869093b1SHidetoshi Shimokawa.\" Copyright (c) 2003 Hidetoshi Shimokawa 2869093b1SHidetoshi Shimokawa.\" All rights reserved. 3869093b1SHidetoshi Shimokawa.\" 4869093b1SHidetoshi Shimokawa.\" Redistribution and use in source and binary forms, with or without 5869093b1SHidetoshi Shimokawa.\" modification, are permitted provided that the following conditions 6869093b1SHidetoshi Shimokawa.\" are met: 7869093b1SHidetoshi Shimokawa.\" 1. Redistributions of source code must retain the above copyright 8869093b1SHidetoshi Shimokawa.\" notice, this list of conditions and the following disclaimer. 9869093b1SHidetoshi Shimokawa.\" 2. Redistributions in binary form must reproduce the above copyright 10869093b1SHidetoshi Shimokawa.\" notice, this list of conditions and the following disclaimer in the 11869093b1SHidetoshi Shimokawa.\" documentation and/or other materials provided with the distribution. 12869093b1SHidetoshi Shimokawa.\" 13869093b1SHidetoshi Shimokawa.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14869093b1SHidetoshi Shimokawa.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15869093b1SHidetoshi Shimokawa.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16869093b1SHidetoshi Shimokawa.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 17869093b1SHidetoshi Shimokawa.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18869093b1SHidetoshi Shimokawa.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19869093b1SHidetoshi Shimokawa.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20869093b1SHidetoshi Shimokawa.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 21869093b1SHidetoshi Shimokawa.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 22869093b1SHidetoshi Shimokawa.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 23869093b1SHidetoshi Shimokawa.\" POSSIBILITY OF SUCH DAMAGE. 24869093b1SHidetoshi Shimokawa.\" 25869093b1SHidetoshi Shimokawa.\" $FreeBSD$ 26869093b1SHidetoshi Shimokawa.\" 27869093b1SHidetoshi Shimokawa.\" 28869093b1SHidetoshi Shimokawa.Dd February 11, 2003 29869093b1SHidetoshi Shimokawa.Dt DCONS 4 30869093b1SHidetoshi Shimokawa.Os 31869093b1SHidetoshi Shimokawa.Sh NAME 32869093b1SHidetoshi Shimokawa.Nm dcons 33869093b1SHidetoshi Shimokawa.Nd dumb console device driver 34869093b1SHidetoshi Shimokawa.Sh SYNOPSIS 35869093b1SHidetoshi Shimokawa.Cd device dcons 36869093b1SHidetoshi Shimokawa.Pp 37869093b1SHidetoshi Shimokawa.Cd options DDB 38869093b1SHidetoshi Shimokawa.Cd options ALT_BREAK_TO_DEBUGGER 39869093b1SHidetoshi Shimokawa.Pp 40869093b1SHidetoshi Shimokawa.Cd device firewire 41869093b1SHidetoshi Shimokawa.Sh DESCRIPTION 42869093b1SHidetoshi ShimokawaThe 43869093b1SHidetoshi Shimokawa.Nm 44869093b1SHidetoshi Shimokawadevice is the simple console device which just reads from and writes to 45869093b1SHidetoshi Shimokawaan allocated buffer for input and output respectivly. 46869093b1SHidetoshi ShimokawaIt is no use by itself and it is supposed that the buffer is accessed 47869093b1SHidetoshi Shimokawavia a bus like 48869093b1SHidetoshi Shimokawa.Xr FireWire 4 49efa60c7aSHidetoshi Shimokawaor 50efa60c7aSHidetoshi Shimokawa.Xr kvm 3 51869093b1SHidetoshi Shimokawafor interaction. 52869093b1SHidetoshi Shimokawa.Pp 53869093b1SHidetoshi ShimokawaThe buffer consists of 4 channels. 54869093b1SHidetoshi ShimokawaThere are 2 ports, one for console tty and other is GDB ports then each port 55869093b1SHidetoshi Shimokawahas a input channel and a output channel. 56869093b1SHidetoshi Shimokawa.Sh EXAMPLE 57869093b1SHidetoshi ShimokawaIf you want to run 58869093b1SHidetoshi Shimokawa.Xr getty 8 59869093b1SHidetoshi Shimokawaon dcons, insert following line into 60869093b1SHidetoshi Shimokawa.Xr /etc/ttys 5 61869093b1SHidetoshi Shimokawaand 62869093b1SHidetoshi Shimokawasend a HUP signal to 63869093b1SHidetoshi Shimokawa.Xr init 8 64869093b1SHidetoshi Shimokawausing 65869093b1SHidetoshi Shimokawa.Xr kill 1 . 66869093b1SHidetoshi Shimokawa.Bd -literal -offset indent 67869093b1SHidetoshi Shimokawadcons "/usr/libexec/getty std.9600" vt100 on secure 68869093b1SHidetoshi Shimokawa.Ed 69869093b1SHidetoshi Shimokawa.Pp 70869093b1SHidetoshi ShimokawaOnce 71869093b1SHidetoshi Shimokawa.Xr fwochi 4 72869093b1SHidetoshi Shimokawadevice is initialized to allow physical access, 73869093b1SHidetoshi Shimokawathe buffer can be accessed from another host via FireWire bus using 74efa60c7aSHidetoshi Shimokawa.Xr dconschat 8 75869093b1SHidetoshi Shimokawaapplication. See 76efa60c7aSHidetoshi Shimokawa.Xr dconschat 8 77869093b1SHidetoshi Shimokawafor more details. 78869093b1SHidetoshi Shimokawa.Pp 79869093b1SHidetoshi Shimokawa.Sh FILES 80869093b1SHidetoshi Shimokawa.Bl -tag -width indent -compact 81869093b1SHidetoshi Shimokawa.It Pa /dev/dcons 82869093b1SHidetoshi Shimokawa.It Pa /etc/ttys 83869093b1SHidetoshi Shimokawa.El 84869093b1SHidetoshi Shimokawa.Sh SEE ALSO 85efa60c7aSHidetoshi Shimokawa.Xr dcons_crom 4 , 86869093b1SHidetoshi Shimokawa.Xr ddb 4 , 87869093b1SHidetoshi Shimokawa.Xr firewire 4 , 88869093b1SHidetoshi Shimokawa.Xr fwohci 4 , 89efa60c7aSHidetoshi Shimokawa.Xr dconschat 8 , 90869093b1SHidetoshi Shimokawa.Xr fwcontrol 8 , 91869093b1SHidetoshi Shimokawa.Xr ttys 5 92869093b1SHidetoshi Shimokawa.Sh AUTHORS 93869093b1SHidetoshi Shimokawa.An Hidetoshi Shimokawa Aq simokawa@FreeBSD.org 94869093b1SHidetoshi Shimokawa.Sh BUGS 95869093b1SHidetoshi ShimokawaThis driver is still under development. 96869093b1SHidetoshi Shimokawa.Pp 97