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+.\" $OpenBSD: pchgpio.4,v 1.1 2020/11/15 17:44:06 kettenis Exp $
+.\"
+.\" Copyright (c) 2020 Mark Kettenis <kettenis@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: November 15 2020 $
+.Dt PCHGPIO 4
+.Os
+.Sh NAME
+.Nm pchgpio
+.Nd Intel PCH GPIO controller
+.Sh SYNOPSIS
+.Cd "pchgpio* at acpi?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the GPIO controllers found on Intel PCHs.
+It does not provide direct device driver entry points but makes its
+functions available to
+.Xr acpi 4 .
+.Sh SEE ALSO
+.Xr acpi 4 ,
+.Xr intro 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 6.9 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Mark Kettenis Aq Mt kettenis@openbsd.org
+and
+.An James Hastings .