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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
commit253e67c8b3a72b3a4757fdbc5845297628db0a4a (patch)
treeadf53b66087aa30dfbf8bf391a1dadb044c3bf4d /static/netbsd/man4/css.4
parenta9157ce950dfe2fc30795d43b9d79b9d1bffc48b (diff)
docs: Added All NetBSD Manuals
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+.\" $NetBSD: css.4,v 1.12 2017/08/01 11:11:17 wiz Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\" The Regents of the University of California. 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. 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: @(#)css.4 8.1 (Berkeley) 6/5/93
+.\"
+.Dd June 5, 1993
+.Dt CSS 4 vax
+.Os
+.Sh NAME
+.Nm css
+.Nd
+.Tn DEC IMP-11A LH/DH IMP
+network interface
+.Sh SYNOPSIS
+.Cd "pseudo-device imp device css0 \&at uba0 csr 167600 flags 10 vector cssrint cssxint"
+.Sh DESCRIPTION
+NOTE: At the moment,
+.Nx
+does not support
+.Tn IMP ,
+so this manual page is not relevant.
+.Pp
+The
+.Nm css
+device provides a Local Host/Distant Host
+interface to an
+.Tn IMP .
+It is normally used when participating
+in the
+.Tn DARPA
+Internet.
+The controller itself is not accessible
+to users, but instead provides the hardware support to the
+.Tn IMP
+interface described in
+.Xr imp 4 .
+The configuration entry for the
+.Xr imp 4
+must also include the
+.Em pseudo-device
+as shown above.
+.Sh DIAGNOSTICS
+.Bl -diag
+.It css%d: not alive.
+The initialization routine was entered even though the device
+did not autoconfigure.
+This is indicates a system problem.
+.It css%d: can't initialize.
+Insufficient
+.Tn UNIBUS
+resources existed to initialize the device.
+This is likely to occur when the device is run on a buffered
+data path on an 11/750 and other network interfaces are also
+configured to use buffered data paths, or when it is configured
+to use buffered data paths on an 11/730 (which has none).
+.It css%d: imp doesn't respond, icsr=%b.
+The driver attempted to initialize the device, but the
+.Tn IMP
+failed to respond after 500 tries.
+Check the cabling.
+.It css%d: stray output interrupt csr=%b.
+An interrupt occurred when no output had previously been started.
+.It css%d: output error, ocsr=%b icsr=%b.
+The device indicated a problem sending data on output.
+.It css%d: recv error, csr=%b.
+The device indicated a problem receiving data on input.
+.It css%d: bad length=%d.
+An input operation resulted in a data transfer of less than
+0 or more than 1008 bytes of
+data into memory (according to the word count register).
+This should never happen as the maximum size of a
+.Pf host- Tn IMP
+message is 1008 bytes.
+.El
+.Sh HISTORY
+The
+.Nm
+interface appeared in
+.Bx 4.2 .