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Diffstat (limited to 'static/openbsd/man4/hsq.4')
| -rw-r--r-- | static/openbsd/man4/hsq.4 | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/static/openbsd/man4/hsq.4 b/static/openbsd/man4/hsq.4 new file mode 100644 index 00000000..100e58fb --- /dev/null +++ b/static/openbsd/man4/hsq.4 @@ -0,0 +1,103 @@ +.\" $OpenBSD: hsq.4,v 1.18 2018/01/03 08:43:09 bentley Exp $ +.\" from: OpenBSD: ast.4,v 1.5 1999/07/09 13:35:43 aaron Exp +.\" from: NetBSD: ast.4,v 1.7 1996/03/16 00:07:07 thorpej Exp +.\" +.\" Copyright (c) 1990, 1991 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Systems Programming Group of the University of Utah Computer +.\" Science Department. +.\" 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. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. +.\" +.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91 +.\" from: Id: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp +.\" +.Dd $Mdocdate: January 3 2018 $ +.Dt HSQ 4 +.Os +.Sh NAME +.Nm hsq +.Nd multiplexing serial communications interface +.Sh SYNOPSIS +.Cd "hsq0 at isa? port 0x140 irq 10" +.Cd "com* at hsq?" +.Sh DESCRIPTION +The +.Nm +driver provides support for Hostess +.Pq Lk https://www.comtrol.com/ "Comtrol Corporation" +and compatible boards that multiplex together up to four +.Tn EIA +.Tn RS-232C +.Pq Tn CCITT V.28 +communications interfaces. +.Pp +Each +.Nm +device is the master device for up to four +.Nm com +devices. +The kernel configuration specifies these +.Nm com +devices as slave devices of the +.Nm +device, as shown in +.Sx 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 +.Cd port +specification for the +.Nm +device is used to compute the base addresses for the +.Nm com +subdevices (they are equal to port + ID * 8) and the port for +the interrupt multiplexing register (it is equal to port + 7). +More technical details on how the driver works can be found in +the big comment at the beginning of the driver's source code. +.Pp +Information on setup of card's configuration switches should be taken +from Comtrol Corporation's web site, since the author wrote and tested +the driver only with Hostess-compatible cards. +.Sh FILES +.Bl -tag -width Pa -compact +.It Pa /dev/tty0? +.It Pa /dev/cua0? +.El +.Sh SEE ALSO +.Xr com 4 , +.Xr intro 4 , +.Xr isa 4 +.Sh HISTORY +The +.Nm +driver was written by +.An Denis A. Doroshenko +based on the +.Xr ast 4 +driver. |