72 lines
2.5 KiB
Groff
72 lines
2.5 KiB
Groff
.\" Copyright (c) 1998, Nicolas Souchu
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\"
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.Dd March 5, 1998
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.Dt PLIP 4
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.Os FreeBSD
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.Sh NAME
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.Nm plip
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.Nd
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Parallel port network interface
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.Sh SYNOPSIS
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.Cd "device plip at ppbus?"
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.Sh DESCRIPTION
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The
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.Em plip
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driver is the port of the
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.Xr lp 4
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driver to the
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.Xr ppbus 4
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system.
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.Pp
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One purpose of this port is to allow parallel port sharing with other
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parallel devices. Parallel port bus allocation has been added to the original
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.Xr lp 4
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driver. Secondly, inb()/outb() calls have been replaced by ppbus function
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calls. plip is now arch-independent thanks to the ppbus interface. See
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.Xr ppbus 4
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for more info about the ppbus system.
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.Pp
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The ppbus is allocated when the parallel network interface comes up, then
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released when the interface goes down. Consequently, the parallel port bus
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is unavailable to other devices when the network interface is up. plip is
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interrupt driven and needs to own the bus to receive parallel port interrupts.
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.Pp
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Please, ensure the
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.Xr ppc 4
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entry in you MACHINE file has the net interrupt level...
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.Sh SEE ALSO
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.Xr ppbus 4 ,
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.Xr lp 4 ,
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.Sh HISTORY
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The
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.Nm
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manual page first appeared in
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.Fx 3.0 .
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.Sh AUTHOR
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This
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manual page was written by
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.An Nicolas Souchu .
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