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$FreeBSD: head/share/man/man4/dcons.4 123803 2003-12-24 12:58:35Z simokawa $
.Dd February 11, 2003 .Dt DCONS 4 .Os .Sh NAME .Nm dcons .Nd dumb console device driver .Sh SYNOPSIS .Cd device dcons
p .Cd options DDB .Cd options ALT_BREAK_TO_DEBUGGER
p .Cd device firewire .Sh DESCRIPTION The .Nm device is the simple console device which just reads from and writes to an allocated buffer for input and output respectivly. It is no use by itself and it is supposed that the buffer is accessed via a bus like .Xr firewire 4 or .Xr kvm 3 for interaction.
p The buffer consists of 4 channels. There are 2 ports, one for console tty and other is GDB ports then each port has a input channel and a output channel. .Sh EXAMPLE If you want to run .Xr getty 8 on dcons, insert following line into .Xr /etc/ttys 5 and send a HUP signal to .Xr init 8 using .Xr kill 1 . d -literal -offset indent dcons "/usr/libexec/getty std.9600" vt100 on secure .Ed
p Once .Xr fwochi 4 device is initialized to allow physical access, the buffer can be accessed from another host via FireWire bus using .Xr dconschat 8 application. See .Xr dconschat 8 for more details.
p .Sh FILES l -tag -width indent -compact t Pa /dev/dcons t Pa /etc/ttys .El .Sh SEE ALSO .Xr dcons_crom 4 , .Xr ddb 4 , .Xr firewire 4 , .Xr fwohci 4 , .Xr dconschat 8 , .Xr fwcontrol 8 , .Xr ttys 5 .Sh AUTHORS .An Hidetoshi Shimokawa Aq simokawa@FreeBSD.org .Sh BUGS This driver is still under development.
p