dcons -- dumb console device driver
The dcons 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 FireWire(4) or kvm(3) for interaction.
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
If you want to run getty(8) on dcons, insert following line into
/etc/ttys(5) and send a HUP signal to init(8) using kill(1).
dcons "/usr/libexec/getty std.9600" vt100 on secure
Once fwochi(4) device is initialized to allow physical access, the buffer
can be accessed from another host via FireWire bus using dconschat(8)
application. See dconschat(8) for more details.
dcons_crom(4), ddb(4), firewire(4), fwohci(4), dconschat(8),
Hidetoshi Shimokawa <simokawa@FreeBSD.org>
This driver is still under development.
FreeBSD 5.2.1 February 11, 2003 FreeBSD 5.2.1 [ Back ]