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.Dd June 6, 2018 29.Dt GPIOCTL 8 30.Os 31.Sh NAME 32.Nm gpioctl 33.Nd GPIO control utility 34.Sh SYNOPSIS 35.Nm 36.Op Fl f Ar ctldev 37.Cm -l 38.Op Fl v 39.Nm 40.Op Fl f Ar ctldev 41.Op Fl pN 42.Cm -t 43.Ar pin 44.Nm 45.Op Fl f Ar ctldev 46.Op Fl pN 47.Cm -c 48.Ar pin 49.Ar flag 50.Op flag ... 51.Nm 52.Op Fl f Ar ctldev 53.Op Fl pN 54.Cm -n 55.Ar pin 56.Ar pin-name 57.Nm 58.Op Cm -f Ar ctldev 59.Op Fl pN 60.Ar pin 61.Ar [0|1] 62.Sh DESCRIPTION 63The 64.Nm 65utility could be used to manage GPIO pins from userland and list available pins. 66.Pp 67The 68.Pa pin 69argument can either be a 70.Pa pin-number 71or a 72.Pa pin-name . 73If it is a number and a pin has this number as its name and you did not use 74.Fl N 75or 76.Fl p 77, then 78.Nm 79exits. 80.Pp 81The options are as follows: 82.Bl -tag -width ".Fl f Ar ctldev" 83.It Fl c Ar pin Ar flag Op flag ... 84Configure pin by setting provided flags. 85The following flags are currently defined: 86.Bl -tag -offset indent -width ".Cm PULSE" 87.It Cm IN 88Input pin 89.It Cm OUT 90Output pin 91.It Cm OD 92Open drain pin 93.It Cm PP 94Push pull pin 95.It Cm TS 96Tristate pin 97.It Cm PU 98Pull-up pin 99.It Cm PD 100Pull-down pin 101.It Cm II 102Inverted input pin 103.It Cm IO 104Inverted output pin 105.El 106.It Fl f Ar ctldev 107GPIO controller device to use 108If not specified, defaults to 109.Pa /dev/gpioc0 110.It Fl l 111list available pins 112.It Fl n Ar pin Ar pin-name 113set the name used to describe the pin 114.It Fl t Ar pin 115toggle value of provided pin 116.It Fl v 117be verbose: for each listed pin print current configuration 118.It Fl p 119Force 120.Pa pin 121to be interpreted as a pin number 122.It Fl N 123Force 124.Pa pin 125to be interpreted as a pin name 126.El 127.Sh EXAMPLES 128.Bl -bullet 129.It 130List pins available on GPIO controller defined by device /dev/gpioc0 131.Pp 132gpioctl -f /dev/gpioc0 -l 133.It 134Set the value of pin 12 to 1 135.Pp 136gpioctl -f /dev/gpioc0 12 1 137.It 138Configure pin 12 to be input pin 139.Pp 140gpioctl -f /dev/gpioc0 -c 12 IN 141.It 142Set the name of pin 12 to test 143.Pp 144gpioctl -f /dev/gpioc0 -n 12 test 145.It 146Toggle the value the pin named test 147.Pp 148gpioctl -f /dev/gpioc0 -t test 149.It 150Toggle the value of pin number 12 even if another pin has the name 12 151.Pp 152gpioctl -f /dev/gpioc0 -pt 12 153.El 154.Sh SEE ALSO 155.Xr gpio 4 , 156.Xr gpioiic 4 , 157.Xr gpioled 4 158.Sh HISTORY 159The 160.Nm 161utility appeared in 162.Fx 9.0 . 163.Sh AUTHORS 164.An -nosplit 165The 166.Nm 167utility and this manual page were written by 168.An Oleksandr Tymoshenko Aq Mt gonzo@freebsd.org . 169