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 November 7, 2013 31.Dt GPIOCTL 1 32.Os 33.Sh NAME 34.Nm gpioctl 35.Nd GPIO control utility 36.Sh SYNOPSIS 37.Nm 38.Cm -l 39.Op Fl f Ar ctldev 40.Op Fl v 41.Nm 42.Cm -t 43.Op Fl f Ar ctldev 44.Ar pin 45.Nm 46.Cm -c 47.Op Fl f Ar ctldev 48.Ar pin 49.Ar flag 50.Op flag ... 51.Nm 52.Op Cm -f Ar ctldev 53.Ar pin 54.Ar [0|1] 55.Sh DESCRIPTION 56The 57.Nm 58utility could be used to manage GPIO pins from userland and list available pins. 59.Pp 60The options are as follows: 61.Bl -tag -width ".Fl f Ar ctldev" 62.It Fl c Ar pin Ar flag Op flag ... 63Configure pin by setting provided flags. The following flags are currently defined: 64.Bl -tag -offset indent -width ".Cm PULSE" 65.It Cm IN 66Input pin 67.It Cm OUT 68Output pin 69.It Cm OD 70Open drain pin 71.It Cm PP 72Push pull pin 73.It Cm TS 74Tristate pin 75.It Cm PU 76Pull-up pin 77.It Cm PD 78Pull-down pin 79.It Cm II 80Inverted input pin 81.It Cm IO 82Inverted output pin 83.El 84.It Fl f Ar ctldev 85GPIO controller device to use 86If not specified, defaults to 87.Pa /dev/gpioc0 88.It Fl l 89list available pins 90.It Fl t Ar pin 91toggle value of provided pin number 92.It Fl v 93be verbose: for each listed pin print current configuration 94.El 95.Sh EXAMPLES 96.Bl -bullet 97.It 98List pins available on GPIO controller defined by device /dev/gpioc0 99.Pp 100gpioctl -f /dev/gpioc0 -l 101.It 102Set the value of pin 12 to 1 103.Pp 104gpioctl -f /dev/gpioc0 12 1 105.It 106Configure pin 12 to be input pin 107.Pp 108gpioctl -f /dev/gpioc0 -c 12 IN 109.El 110.Sh SEE ALSO 111.Xr gpio 4 112.Xr gpioiic 4 113.Xr gpioled 4 114.Sh HISTORY 115The 116.Nm 117utility appeared in 118.Fx 9.0 . 119.Sh AUTHORS 120.An -nosplit 121The 122.Nm 123utility and this manual page were written by 124.An Oleksandr Tymoshenko Aq Mt gonzo@freebsd.org . 125