82 lines
2.9 KiB
Groff
82 lines
2.9 KiB
Groff
.\" $NetBSD: lpt.4,v 1.2 1995/11/28 08:03:29 jtc Exp $
|
|
.\"
|
|
.\" Copyright (c) 1994 Matthias Pfaller.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by Matthias Pfaller.
|
|
.\" 4. The name of the author may not be used to endorse or promote products
|
|
.\" derived from this software without specific prior written permission
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $Id: lpt.4,v 1.2 1995/11/28 08:03:29 jtc Exp $
|
|
.\"
|
|
.Dd December 1, 1994
|
|
.Dt LPT 4 pc532
|
|
.Os NetBSD 1.0
|
|
.Sh NAME
|
|
.Nm lpt
|
|
.Nd Parallel port driver
|
|
.Sh SYNOPSIS
|
|
.Cd "lpt0 at membus? addr ? irq ?"
|
|
.Cd "lpt1 at membus? addr ? irq ?"
|
|
.Sh DESCRIPTION
|
|
This driver provides access to centronics ports. Bit 6 in the minor number
|
|
selects wether to omit pulling /PRIME low on opens or not. If the minor has
|
|
bit 5 set, AUTOLINEFEED will be asserted when transfering data to the printer.
|
|
Addr and Irq default to 0xffc80030,7 for lpt0 and to 0xffc80034,6 for lpt1.
|
|
.Sh FILES
|
|
.Bl -tag -width Pa -compact
|
|
.It Pa /dev/lpt0
|
|
first parallel port device
|
|
.It Pa /dev/lpt1
|
|
second parallel port device
|
|
.El
|
|
.Sh DIAGNOSTICS
|
|
.Bl -diag
|
|
.It "lpt?: out of paper"
|
|
The printer asserted the
|
|
.Em Paper Empty
|
|
signal.
|
|
.It "lpt?: offline"
|
|
The printer did not assert the
|
|
.Em Select
|
|
signal.
|
|
.It "lpt?: output error"
|
|
The printer asserted the
|
|
.Em /Error
|
|
signal.
|
|
.It "lpt?: NACK low"
|
|
The printer didn't release the
|
|
.Em /Ack
|
|
signal.
|
|
.It "lpt?: NBUSY low"
|
|
The printer didn't release the
|
|
.Em Busy
|
|
signal.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr plip 4
|
|
.sp
|
|
Contact Matthias Pfaller (leo@dachau.marco.de) to get instructions on building
|
|
a centronics interface for your PC532.
|