1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. 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.\" 3. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd June 6, 2018 31.Dt GPIOCTL 8 32.Os 33.Sh NAME 34.Nm gpioctl 35.Nd GPIO control utility 36.Sh SYNOPSIS 37.Nm 38.Op Fl f Ar ctldev 39.Cm -l 40.Op Fl v 41.Nm 42.Op Fl f Ar ctldev 43.Op Fl pN 44.Cm -t 45.Ar pin 46.Nm 47.Op Fl f Ar ctldev 48.Op Fl pN 49.Cm -c 50.Ar pin 51.Ar flag 52.Op flag ... 53.Nm 54.Op Fl f Ar ctldev 55.Op Fl pN 56.Cm -n 57.Ar pin 58.Ar pin-name 59.Nm 60.Op Cm -f Ar ctldev 61.Op Fl pN 62.Ar pin 63.Ar [0|1] 64.Sh DESCRIPTION 65The 66.Nm 67utility could be used to manage GPIO pins from userland and list available pins. 68.Pp 69The 70.Pa pin 71argument can either be a 72.Pa pin-number 73or a 74.Pa pin-name . 75If it is a number and a pin has this number as its name and you did not use 76.Fl N 77or 78.Fl p 79, then 80.Nm 81exits. 82.Pp 83The options are as follows: 84.Bl -tag -width ".Fl f Ar ctldev" 85.It Fl c Ar pin Ar flag Op flag ... 86Configure pin by setting provided flags. 87The following flags are currently defined: 88.Bl -tag -offset indent -width ".Cm PULSE" 89.It Cm IN 90Input pin 91.It Cm OUT 92Output pin 93.It Cm OD 94Open drain pin 95.It Cm PP 96Push pull pin 97.It Cm TS 98Tristate pin 99.It Cm PU 100Pull-up pin 101.It Cm PD 102Pull-down pin 103.It Cm II 104Inverted input pin 105.It Cm IO 106Inverted output pin 107.El 108.It Fl f Ar ctldev 109GPIO controller device to use 110If not specified, defaults to 111.Pa /dev/gpioc0 112.It Fl l 113list available pins 114.It Fl n Ar pin Ar pin-name 115set the name used to describe the pin 116.It Fl t Ar pin 117toggle value of provided pin 118.It Fl v 119be verbose: for each listed pin print current configuration 120.It Fl p 121Force 122.Pa pin 123to be interpreted as a pin number 124.It Fl N 125Force 126.Pa pin 127to be interpreted as a pin name 128.El 129.Sh EXAMPLES 130.Bl -bullet 131.It 132List pins available on GPIO controller defined by device /dev/gpioc0 133.Pp 134gpioctl -f /dev/gpioc0 -l 135.It 136Set the value of pin 12 to 1 137.Pp 138gpioctl -f /dev/gpioc0 12 1 139.It 140Configure pin 12 to be input pin 141.Pp 142gpioctl -f /dev/gpioc0 -c 12 IN 143.It 144Set the name of pin 12 to test 145.Pp 146gpioctl -f /dev/gpioc0 -n 12 test 147.It 148Toggle the value the pin named test 149.Pp 150gpioctl -f /dev/gpioc0 -t test 151.It 152Toggle the value of pin number 12 even if another pin has the name 12 153.Pp 154gpioctl -f /dev/gpioc0 -pt 12 155.El 156.Sh SEE ALSO 157.Xr gpio 4 , 158.Xr gpioiic 4 , 159.Xr gpioled 4 160.Sh HISTORY 161The 162.Nm 163utility appeared in 164.Fx 9.0 . 165.Sh AUTHORS 166.An -nosplit 167The 168.Nm 169utility and this manual page were written by 170.An Oleksandr Tymoshenko Aq Mt gonzo@freebsd.org . 171