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.\" 4. 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 March 7, 2015 31.Dt GPIOCTL 1 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.Cm -t 44.Ar pin 45.Nm 46.Op Fl f Ar ctldev 47.Cm -c 48.Ar pin 49.Ar flag 50.Op flag ... 51.Nm 52.Op Fl f Ar ctldev 53.Cm -n 54.Ar pin 55.Ar pin-name 56.Nm 57.Op Cm -f Ar ctldev 58.Ar pin 59.Ar [0|1] 60.Sh DESCRIPTION 61The 62.Nm 63utility could be used to manage GPIO pins from userland and list available pins. 64.Pp 65The options are as follows: 66.Bl -tag -width ".Fl f Ar ctldev" 67.It Fl c Ar pin Ar flag Op flag ... 68Configure pin by setting provided flags. The following flags are currently defined: 69.Bl -tag -offset indent -width ".Cm PULSE" 70.It Cm IN 71Input pin 72.It Cm OUT 73Output pin 74.It Cm OD 75Open drain pin 76.It Cm PP 77Push pull pin 78.It Cm TS 79Tristate pin 80.It Cm PU 81Pull-up pin 82.It Cm PD 83Pull-down pin 84.It Cm II 85Inverted input pin 86.It Cm IO 87Inverted output pin 88.El 89.It Fl f Ar ctldev 90GPIO controller device to use 91If not specified, defaults to 92.Pa /dev/gpioc0 93.It Fl l 94list available pins 95.It Fl n Ar pin Ar pin-name 96set the name used to describe the pin 97.It Fl t Ar pin 98toggle value of provided pin number 99.It Fl v 100be verbose: for each listed pin print current configuration 101.El 102.Sh EXAMPLES 103.Bl -bullet 104.It 105List pins available on GPIO controller defined by device /dev/gpioc0 106.Pp 107gpioctl -f /dev/gpioc0 -l 108.It 109Set the value of pin 12 to 1 110.Pp 111gpioctl -f /dev/gpioc0 12 1 112.It 113Configure pin 12 to be input pin 114.Pp 115gpioctl -f /dev/gpioc0 -c 12 IN 116.El 117.Sh SEE ALSO 118.Xr gpio 4 , 119.Xr gpioiic 4 , 120.Xr gpioled 4 121.Sh HISTORY 122The 123.Nm 124utility appeared in 125.Fx 9.0 . 126.Sh AUTHORS 127.An -nosplit 128The 129.Nm 130utility and this manual page were written by 131.An Oleksandr Tymoshenko Aq Mt gonzo@freebsd.org . 132