man page for addcom

2 files changed, 92 insertions, 3 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 441e6cd959f..7a4f1e0cfb7 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,7 +1,7 @@
-#	$OpenBSD: Makefile,v 1.171 2001/07/13 17:42:52 niklas Exp $
+#	$OpenBSD: Makefile,v 1.172 2001/07/17 01:34:48 jason Exp $
 
-MAN=	aac.4 ac97.4 adv.4 aha.4 ahb.4 ahc.4 aic.4 ami.4 amphy.4 an.4 \
-	aria.4 ast.4 \
+MAN=	aac.4 ac97.4 addcom.4 adv.4 aha.4 ahb.4 ahc.4 aic.4 ami.4 amphy.4 \
+	an.4 aria.4 ast.4 \
 	atalk.4 atapiscsi.4 audio.4 aue.4 auvia.4 awi.4 bpf.4 bridge.4 \
 	bmtphy.4 brgphy.4 bt.4 cac.4 cardbus.4 ccd.4 cd.4 \
 	ch.4 clnp.4 clcs.4 clct.4 cltp.4 \
diff --git a/share/man/man4/addcom.4 b/share/man/man4/addcom.4
new file mode 100644
index 00000000000..b5666f11c5e
--- /dev/null
+++ b/share/man/man4/addcom.4
@@ -0,0 +1,89 @@
+.\"	$OpenBSD: addcom.4,v 1.1 2001/07/17 01:34:48 jason Exp $
+.\"
+.\" Copyright (c) 2001 Jason L. Wright (jason@thought.net)
+.\" 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 Jason L. Wright
+.\" 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.
+.\"
+.\"
+.Dd July 16, 2001
+.Dt ADDCOM 4
+.Os
+.Sh NAME
+.Nm addcom
+.Nd multiplexing serial communications interface
+.Sh SYNOPSIS
+.Cd "addcom0 at isa? port 0x108 irq 5"
+.Cd "com* at addcom? slave ?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for Addonics FlexPort 8/S (and probably FlexPort 4/S)
+boards that multiplex together up to eight (or four)
+.Tn EIA
+.Tn RS-232C
+.Pf ( Tn CCITT
+.Tn V.28 )
+communications interfaces.
+.Pp
+Each
+.Nm
+device is the master device for up to eight
+.Nm com
+devices.
+The kernel configuration specifies these
+.Nm com
+devices as slave devices of the
+.Nm
+device, as shown in the synopsis.
+The slave ID given for each
+.Nm com
+device determines which bit in the interrupt multiplexing register is
+tested to find interrupts for that device.
+The
+.Tn port
+specification for the
+.Nm
+device is used to compute the base addresses for the
+.Nm com
+subdevices.
+the port for the interrupt multiplexing register is fixed,
+so it is doubtful that more than one
+.Nm
+can be used in a machine.
+.Sh FILES
+.Bl -tag -width Pa
+.It Pa /dev/tty??
+.El
+.Sh SEE ALSO
+.Xr com 4
+.Sh HISTORY
+.Ox
+support for
+.Nm
+devices first appeared in
+.Ox 3.0 .