freebsd-dev/share/man/man4/bytgpio.4
Glen Barber 1e0358de5b Correct "first appeared in" entries for various drivers that
exist in stable/11.

MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
2017-05-09 20:39:57 +00:00

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.\" Copyright (c) 2016
.\" Oleksandr Tymoshenko <gonzo@FreeBSD.org>. 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" $FreeBSD$
.\"
.Dd May 9, 2017
.Dt BYTGPIO 4
.Os
.Sh NAME
.Nm bytgpio
.Nd Intel Bay Trail SoC GPIO controller
.Sh SYNOPSIS
.Cd "device gpio"
.Cd "device bytgpio"
.Sh DESCRIPTION
The
.Nm
is a driver for GPIO controller that can be found in Intel's Bay Trail SoC family.
.Pp
Bay Trail SoC has three banks of GPIO pins exposed to userland as /dev/gpiocN,
where N is 0, 1, and 2. Pins in each bank are pre-named to match names
on boards schematics: GPIO_S0_SCnn, GPIO_S0_NCnn, and GPIO_S5_nn.
.Sh SEE ALSO
.Xr gpio 3 ,
.Xr gpio 4 ,
.Xr gpioctl 8
.Sh HISTORY
The
.Nm
manual page first appeared in
.Fx 11.1 .
.Sh AUTHORS
This driver and man page was written by
.An Oleksandr Tymoshenko Aq Mt gonzo@FreeBSD.org .