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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 14:02:27 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 14:02:27 -0400
commit6d8bdc65446a704d0750217efd05532fc641ea7d (patch)
tree8ae6d698b3c9801750a8b117b3842fb369872a3a /static/openbsd/man4/pcagpio.4
parent2f467bd7ff8f8db0dafa40426166491d7f57f368 (diff)
docs: OpenBSD Man Pages Added
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+.\" $OpenBSD: pcagpio.4,v 1.11 2013/07/16 16:05:49 schwarze Exp $
+.\"
+.\" Copyright (c) 2005 Theo de Raadt <deraadt@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: July 16 2013 $
+.Dt PCAGPIO 4
+.Os
+.Sh NAME
+.Nm pcagpio
+.Nd Philips PCA955[4567] GPIO controller
+.Sh SYNOPSIS
+.Cd "pcagpio* at iic?"
+.Cd "gpio* at pcagpio?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the Philips PCA955[4567] GPIO controllers.
+The PCA955[467] devices have 8 pins and the PCA9555 device has 16 pins
+which can be configured as either inputs or outputs, and accessed
+using
+.Xr gpioctl 8 .
+.\" Both values are made available through the
+.\" .Xr sysctl 8
+.\" interface.
+.Sh SEE ALSO
+.Xr gpio 4 ,
+.Xr iic 4 ,
+.Xr intro 4 ,
+.Xr gpioctl 8
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 3.9 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Theo de Raadt Aq Mt deraadt@openbsd.org .