1.\" Copyright (c) 2016 2.\" Oleksandr Tymoshenko <gonzo@FreeBSD.org>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.Dd May 9, 2017 26.Dt BYTGPIO 4 27.Os 28.Sh NAME 29.Nm bytgpio 30.Nd Intel Bay Trail SoC GPIO controller 31.Sh SYNOPSIS 32.Cd "device gpio" 33.Cd "device bytgpio" 34.Sh DESCRIPTION 35The 36.Nm 37is a driver for GPIO controller that can be found in Intel's Bay Trail SoC family. 38.Pp 39Bay Trail SoC has three banks of GPIO pins exposed to userland as /dev/gpiocN, 40where N is 0, 1, and 2. Pins in each bank are pre-named to match names 41on boards schematics: GPIO_S0_SCnn, GPIO_S0_NCnn, and GPIO_S5_nn. 42.Sh SEE ALSO 43.Xr gpio 3 , 44.Xr gpio 4 , 45.Xr gpioctl 8 46.Sh HISTORY 47The 48.Nm 49manual page first appeared in 50.Fx 11.1 . 51.Sh AUTHORS 52This driver and man page was written by 53.An Oleksandr Tymoshenko Aq Mt gonzo@FreeBSD.org . 54