.\" Copyright (c) 1998, Nicolas Souchu
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.Dd March 5, 1998
.Dt PLIP 4
.Os FreeBSD
.Sh NAME
.Nm plip
.Nd
Parallel port network interface
.Sh SYNOPSIS
.Cd "device plip at ppbus?"
.Sh DESCRIPTION
The
.Em plip
driver is the port of the
.Xr lp 4
driver to the
.Xr ppbus 4
system.
.Pp
One purpose of this port is to allow parallel port sharing with other
parallel devices. Parallel port bus allocation has been added to the original
.Xr lp 4
driver. Secondly, inb()/outb() calls have been replaced by ppbus function 
calls. plip is now arch-independent thanks to the ppbus interface. See
.Xr ppbus 4
for more info about the ppbus system.
.Pp
The ppbus is allocated when the parallel network interface comes up, then
released when the interface goes down. Consequently, the parallel port bus
is unavailable to other devices when the network interface is up. plip is
interrupt driven and needs to own the bus to receive parallel port interrupts.
.Pp
Please, ensure the
.Xr ppc 4
entry in you MACHINE file has the net interrupt level...
.Sh SEE ALSO
.Xr ppbus 4 ,
.Xr lp 4 ,
.Sh HISTORY
The
.Nm
manual page first appeared in
.Fx 3.0 .
.Sh AUTHOR
This
manual page was written by
.An Nicolas Souchu .