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Manual page for unixbp.

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.\" $NetBSD: unixbp.4,v 1.1 2000/12/09 18:29:17 bjh21 Exp $
.\"
.\" Copyright (c) 2000 Ben Harris
.\" 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
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.\" 3. The name of the author may not be used to endorse or promote products
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.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\"
.Dd December 9, 2000
.Os
.Dt UNIXBP 4 arm26
.Sh NAME
.Nm unixbp
.Nd Unix Backplane driver
.Sh SYNOPSIS
.Cd unixbp0 at ioc0 bank 6
.Sh DESCRIPTION
The
.Nm
driver controls the interrupt-masking hardware on the expansion-card
backplane of certain systems. This hardware gives
.Nx
the ability to selectively block interrupts from particular expansion
cards, and to determine which cards are currently generating interrupts by
examining a single register.
.Sh SEE ALSO
.Xr podulebus 4