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Diffstat (limited to 'static/openbsd/man4/com.4')
| -rw-r--r-- | static/openbsd/man4/com.4 | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/static/openbsd/man4/com.4 b/static/openbsd/man4/com.4 new file mode 100644 index 00000000..ea5ec937 --- /dev/null +++ b/static/openbsd/man4/com.4 @@ -0,0 +1,165 @@ +.\" $OpenBSD: com.4,v 1.49 2021/12/16 08:03:17 anton Exp $ +.\" $NetBSD: com.4,v 1.5 1996/03/16 00:07:08 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 +.\" +.Dd $Mdocdate: December 16 2021 $ +.Dt COM 4 +.Os +.Sh NAME +.Nm com +.Nd serial communications interface +.Sh SYNOPSIS +.Cd "# com attachments" +.Cd "#" +.Cd "# i386" +.Cd "com0 at isa? port 0x3f8 irq 4" +.Cd "com1 at isa? port 0x2f8 irq 3" +.Cd "com2 at isa? port 0x3e8 irq 5" +.Cd "com3 at isa? port 0x2e8 irq 9" +.Cd "com* at isapnp?" +.Cd "com* at pcmcia?" +.Cd "com* at puc?" +.Cd "com* at cardbus?" +.Pp +.Cd "com* at addcom?" +.Cd "com* at ast?" +.Cd "com* at boca?" +.Cd "com* at hsq?" +.Pp +.Cd "# alpha and amd64" +.Cd "com0 at isa? port 0x3f8 irq 4" +.Cd "com1 at isa? port 0x2f8 irq 3" +.Pp +.Cd "# amd64 and arm64" +.Cd "com* at acpi?" +.Pp +.Cd "# arm64 and armv7" +.Cd "com* at fdt?" +.Pp +.Cd "# hppa" +.Cd "com0 at gsc? offset 0x5000 irq 5" +.Cd "com0 at gsc? offset 0x823000 irq 5" +.Cd "com1 at gsc? offset 0x822000 irq 6" +.Cd "com2 at gsc? irq 13" +.Cd "com1 at dino? irq 11" +.Cd "com0 at ssio? irq 4" +.Cd "com1 at ssio? irq 3" +.Pp +.Cd "# loongson" +.Cd "com* at leioc?" +.Pp +.Cd "# macppc" +.Cd "com* at puc?" +.Cd "com* at pcmcia?" +.Cd "com* at cardbus?" +.Pp +.Cd "# octeon" +.Cd "com* at fdt?" +.Pp +.Cd "# riscv64" +.Cd "com* at fdt?" +.Pp +.Cd "# sparc64" +.Cd "com* at asio?" +.Cd "com* at ebus?" +.Cd "com* at puc?" +.Sh DESCRIPTION +The +.Nm com +driver provides support for NS8250-, NS16450-, NS16550-, ST16650-, +ST16C654-, and TI16750-based +.\" XR16850- +.Tn EIA +.Tn RS-232C +.Pf ( Tn CCITT +.Tn V.28 ) +communications interfaces. +.Pp +The NS8250 and NS16450 have single +character buffers, the NS16550 has a 16 character buffer, while +the ST16650 has a 32 character buffer, and the TI16750 has a 64 character +buffer. +.\" The XR16850 has a 128 character buffer. +.Pp +Input and output for each line may be set to one of following baud rates; +50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600, +19200, 38400, 57600, or 115200, or any other baud rate which is a factor +of 115200. +.Sh FILES +.Bl -tag -width Pa -compact +.It Pa /dev/tty00 +.It Pa /dev/tty01 +.It Pa /dev/cua00 +.It Pa /dev/cua01 +.El +.Sh DIAGNOSTICS +.Bl -diag +.It com0: N silo overflows +The input +.Dq silo +has overflowed and incoming data has been lost. +.It com0: weird interrupt: iir=XXXX +The device has generated an unexpected interrupt +with the code listed. +.El +.Sh SEE ALSO +.Xr addcom 4 , +.Xr asio 4 , +.Xr ast 4 , +.Xr boca 4 , +.Xr cardbus 4 , +.Xr dino 4 , +.Xr ebus 4 , +.Xr gsc 4 , +.Xr hsq 4 , +.Xr intro 4 , +.Xr isa 4 , +.Xr isapnp 4 , +.Xr pcmcia 4 , +.Xr puc 4 , +.Xr ssio 4 , +.Xr tty 4 +.Sh HISTORY +The +.Nm +driver was originally derived from the +.Nm HP9000/300 +.Nm dca +driver. +.Sh BUGS +Data loss is possible on busy systems with unbuffered UARTs at high speed. +.Pp +The name of this driver and the constants which define the locations +of the various serial ports are holdovers from +.Nm DOS . |