1 .\" Copyright (c) 2018 Emmanuel Vadot <manu@freebsd.org>
3 .\" Redistribution and use in source and binary forms, with or without
4 .\" modification, are permitted provided that the following conditions
6 .\" 1. Redistributions of source code must retain the above copyright
7 .\" notice, this list of conditions and the following disclaimer.
8 .\" 2. Redistributions in binary form must reproduce the above copyright
9 .\" notice, this list of conditions and the following disclaimer in the
10 .\" documentation and/or other materials provided with the distribution.
12 .\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
13 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
14 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
15 .\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
16 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
17 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
18 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
19 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
20 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
21 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 .Nd configure pwm controller
55 utility can be used to configure pwm controllers.
57 The options are as follow:
58 .Bl -tag -width "-c channel"
60 Channel number to operate on
67 Enable the pwm channel
69 Disable the pwm channel
71 Show the configuration of the pwm channel
73 Configure the period (in nanoseconds) of the pwm channel
75 Configure the duty (in nanoseconds or percentage) of the pwm channel
80 Show the configuration of the pwm channel:
85 Configure a 50000 ns period and a 25000 duty cycle:
87 pwm -f /dev/pwmc0 -p 50000 -d 25000
90 Configure a 50% duty cycle:
92 pwm -f /dev/pwmc0 -d 50%
107 utility and this manual page were written by
108 .An Emmanuel Vadot Aq Mt manu@FreeBSD.org .