1.\" $NetBSD: gpio.conf.5,v 1.3 2022/04/30 13:48:09 brad Exp $ 2.\" 3.\" Copyright (c) 2009 Marc Balmer <marc@msys.ch> 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" 26.Dd August 1, 2009 27.Dt GPIO.CONF 5 28.Os 29.Sh NAME 30.Nm gpio.conf 31.Nd GPIO config file 32.Sh DESCRIPTION 33The 34.Nm 35file is read by the 36.Pa gpio 37rc.d script during system start-up and shutdown, 38and is intended for configuring GPIO pins. 39.Ss FILE FORMAT 40Lines starting with a hash 41.Pq Sq # 42and empty lines are ignored. 43If a line starts with 44.Sq \&! , 45the rest of line will get evaluated as shell script fragment. 46All other lines are passed to 47.Xr gpioctl 8 . 48.Sh FILES 49.Bl -tag -width XXetcXgpioXconfXX 50.It Pa /etc/gpio.conf 51The 52.Nm 53configuration file resides in 54.Pa /etc . 55.It Pa /etc/rc.d/gpio 56.Xr rc.d 8 57script that parses 58.Nm . 59.El 60.Sh EXAMPLES 61In this example, if the 62.Pa /etc/gpio.conf 63config file is present pin 1 of 64.Pa /dev/gpio0 65is set as output and named "error_led". 66.Bd -literal -offset indent 67# Program pin 1 of /dev/gpio0 as output and name it "error_led" 68gpio0 1 set out error_led 69.Ed 70.Sh SEE ALSO 71.Xr gpioctl 8 , 72.Xr rc 8 73