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authorTodd C. Miller <millert@cvs.openbsd.org>1998-03-09 03:04:55 +0000
committerTodd C. Miller <millert@cvs.openbsd.org>1998-03-09 03:04:55 +0000
commit9689cd0a9d5ca600a4b17ecedc6ab75cd96bcad7 (patch)
tree2121566a24d79d2183c27537a0184283a1545a11 /share/man/man4/man4.alpha/lpt.4
parent4524b06fbf789297c9fce6b9dd3b52a6f94b8c84 (diff)
Add some more, taken from the i386 port. I wonder if many of these should
not just be platform independent?
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+.\"
+.\" Copyright (c) 1993 Christopher G. Demetriou
+.\" 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 Christopher G. Demetriou.
+.\" 3. 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 1.1 1998/03/09 03:04:53 millert Exp $
+.\"
+.Dd August 6, 1993
+.Dt LPT 4 alpha
+.Os
+.Sh NAME
+.Nm lpt
+.Nd
+Parallel port driver
+.Sh SYNOPSIS
+.\" XXX this is awful hackery to get it to work right... -- cgd
+.Cd "lpt0 at isa? port" \&"IO_LPT1\&" irq 7
+.Cd "lpt1 at isa? port" \&"IO_LPT2\&"
+.Sh DESCRIPTION
+This driver provides access to parallel ports.
+.Pp
+The highest bit in the minor (bit 7, or add 128) number selects
+whether to do polling or wait for interrupts. If no IRQ is specified
+in the kernel configuration, only the polling device may be used.
+.Pp
+The next lower bit (bit 6, or add 64) indicates the driver should
+avoid initializing the printer.
+.P.
+The next lower bit (bit 5, or add 32) requests that the driver do
+automatic LF generation when printing CR's.
+.Sh FILES
+.Bl -tag -width Pa -compact
+.It Pa /dev/lpt0
+first interrupt-driven parallel port device
+.It Pa /dev/lpa0
+first polled parallel port device
+.El