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 8, 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. 69The following flags are currently defined: 70.Bl -tag -offset indent -width ".Cm PULSE" 71.It Cm IN 72Input pin 73.It Cm OUT 74Output pin 75.It Cm OD 76Open drain pin 77.It Cm PP 78Push pull pin 79.It Cm TS 80Tristate pin 81.It Cm PU 82Pull-up pin 83.It Cm PD 84Pull-down pin 85.It Cm II 86Inverted input pin 87.It Cm IO 88Inverted output pin 89.El 90.It Fl f Ar ctldev 91GPIO controller device to use 92If not specified, defaults to 93.Pa /dev/gpioc0 94.It Fl l 95list available pins 96.It Fl n Ar pin Ar pin-name 97set the name used to describe the pin 98.It Fl t Ar pin 99toggle value of provided pin number 100.It Fl v 101be verbose: for each listed pin print current configuration 102.El 103.Sh EXAMPLES 104.Bl -bullet 105.It 106List pins available on GPIO controller defined by device /dev/gpioc0 107.Pp 108gpioctl -f /dev/gpioc0 -l 109.It 110Set the value of pin 12 to 1 111.Pp 112gpioctl -f /dev/gpioc0 12 1 113.It 114Configure pin 12 to be input pin 115.Pp 116gpioctl -f /dev/gpioc0 -c 12 IN 117.El 118.Sh SEE ALSO 119.Xr gpio 4 , 120.Xr gpioiic 4 , 121.Xr gpioled 4 122.Sh HISTORY 123The 124.Nm 125utility appeared in 126.Fx 9.0 . 127.Sh AUTHORS 128.An -nosplit 129The 130.Nm 131utility and this manual page were written by 132.An Oleksandr Tymoshenko Aq Mt gonzo@freebsd.org . 133