2004-02-04 17:27:18 +03:00
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.\" $NetBSD: lpt.4,v 1.8 2004/02/04 14:27:18 wiz Exp $
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2004-01-23 18:49:41 +03:00
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.\"
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2004-01-20 02:22:23 +03:00
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.\"
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.\" Copyright (c) 1993 Christopher G. Demetriou
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.\" Copyright (c) 1994 Geoffrey M. Rehmet
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.\" Copyright (c) 1999 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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.\" $FreeBSD: src/share/man/man4/lpt.4,v 1.9.2.2 2001/08/17 13:08:38 ru Exp $
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.\"
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2004-02-04 00:37:00 +03:00
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.Dd February 3, 2004
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2004-01-20 02:22:23 +03:00
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.Dt LPT 4
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.Os
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.Sh NAME
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.Nm lpt
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.Nd generic printer device driver
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.Sh SYNOPSIS
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.Cd "lpt* at ppbus?"
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.Cd options LPT_DEBUG
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.Cd options LPT_VERBOSE
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.Sh DESCRIPTION
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2004-01-23 18:33:13 +03:00
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The
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.Nm
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driver is the port of the lpt driver to the
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.Xr ppbus 4
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system.
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.Pp
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2004-01-28 22:54:15 +03:00
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The purpose of this driver is to allow parallel port sharing with
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other parallel devices.
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See
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.Xr ppbus 4
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for more information about the parallel port bus system.
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.Pp
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The parallel port bus is reserved by
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.Nm
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when the printer device is opened and released when the device is
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closed.
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.Pp
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2004-02-04 00:35:57 +03:00
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Ports can be configured to use interrupts, DMA, IEEE negotiations, and IEEE
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compliant transfer modes by using the
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.Xr lptctl 8
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2004-01-23 18:33:13 +03:00
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command, with modes depending on the hardware available.
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2004-01-20 02:22:23 +03:00
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.Sh FILES
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2004-02-04 00:35:57 +03:00
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.Bl -tag -width "/dev/lpt0xxxx" -compact
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2004-01-20 02:22:23 +03:00
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.It Pa /dev/lpt?
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2004-02-04 00:35:57 +03:00
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parallel port device
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.It Pa /dev/lpt?ctl
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parallel port control device
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2004-01-20 02:22:23 +03:00
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.El
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.Sh SEE ALSO
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2004-01-23 18:33:13 +03:00
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.Xr atppc 4 ,
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.Xr ppbus 4 ,
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.Xr lptctl 8 ,
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.Xr mknod 8
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2004-01-20 02:22:23 +03:00
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.Sh HISTORY
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2004-02-04 17:27:18 +03:00
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This driver is derived from the
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2004-01-23 18:59:18 +03:00
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.Fx
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2004-02-04 17:27:18 +03:00
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ppbus and also from the historic
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2004-01-23 18:59:18 +03:00
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.Nx
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2004-02-04 17:27:18 +03:00
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drivers.
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2004-02-04 00:35:57 +03:00
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.Pp
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The
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.Nm
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driver used to assign special meaning for some bits of device minor.
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2004-02-04 17:27:18 +03:00
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This was dropped in ppbus-based
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2004-02-04 00:35:57 +03:00
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.Nm
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in favour of configuration via
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.Xr lptctl 8 .
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2004-01-20 02:22:23 +03:00
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.Sh AUTHORS
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2004-01-23 18:59:18 +03:00
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This manual page was based on the
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.Fx
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.Nm lpt
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manual page.
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The information has been updated for the
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.Nx
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port by Gary Thorpe.
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