76 lines
1.9 KiB
Groff
76 lines
1.9 KiB
Groff
.\" $NetBSD: gscpcib.4,v 1.3 2005/09/27 19:07:17 wiz Exp $
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.\" $OpenBSD: gscpcib.4,v 1.4 2005/01/20 22:08:01 jmc Exp $
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.\"
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.\" Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org>
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.Dd September 27, 2005
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.Dt GSCPCIB 4 i386
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.Os
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.Sh NAME
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.Nm gscpcib
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.Nd National Semiconductor Geode SC1100 PCI-ISA bridge
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.Sh SYNOPSIS
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.Cd "gscpcib* at pci?"
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.Cd "isa* at gscpcib?"
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.Cd "gpio* at gscpcib?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the National Semiconductor Geode SC1100
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System-on-Chip
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.Tn PCI-ISA
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bridge.
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This device is a
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.Tn PCI-ISA
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bridge, but with some additional sub-devices.
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Besides the core
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.Xr pcib 4
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functionality, the
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.Nm
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driver provides support for the
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.Tn GPIO
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interface of this device.
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.Pp
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The device has 64 I/O pins which can be accessed through the
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.Xr gpio 4
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framework.
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The
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.Xr gpioctl 8
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program provides a convenient way to manipulate these pins from userland.
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.Sh SEE ALSO
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.Xr gpio 4 ,
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.Xr intro 4 ,
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.Xr isa 4 ,
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.Xr pci 4 ,
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.Xr pcib 4 ,
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.Xr gpioctl 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Ox 3.6
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and
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.Nx 4.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Alexander Yurchenko Aq grange@openbsd.org
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and was ported to
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.Nx
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by
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.An Jared D. McNeill Aq jmcneill@NetBSD.org .
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