svn commit: r343826 - head/usr.sbin/pwm
Yuri Pankov
yuripv at FreeBSD.org
Wed Feb 6 04:00:38 UTC 2019
Author: yuripv
Date: Wed Feb 6 04:00:37 2019
New Revision: 343826
URL: https://svnweb.freebsd.org/changeset/base/343826
Log:
pwm.8: fix markup in synopsis, add -f description
Reviewed by: bcr, manu
Differential revision: https://reviews.freebsd.org/D18829
Modified:
head/usr.sbin/pwm/pwm.8
Modified: head/usr.sbin/pwm/pwm.8
==============================================================================
--- head/usr.sbin/pwm/pwm.8 Wed Feb 6 03:57:51 2019 (r343825)
+++ head/usr.sbin/pwm/pwm.8 Wed Feb 6 04:00:37 2019 (r343826)
@@ -22,7 +22,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd November 12, 2018
+.Dd January 12, 2019
.Dt PWM 8
.Os
.Sh NAME
@@ -44,20 +44,25 @@
.Nm
.Op Fl f Ar device
.Fl c Ar channel
-.Fl p period
+.Fl p Ar period
.Nm
.Op Fl f Ar device
.Fl c Ar channel
-.Fl d duty
+.Fl d Ar duty
.Sh DESCRIPTION
The
.Nm
utility can be used to configure pwm controllers.
.Pp
The options are as follow:
-.Bl -tag -width ".Fl f Ar device"
+.Bl -tag -width "-c channel"
.It Fl c Ar channel
Channel number to operate on
+.It Fl f Ar device
+Device to operate on.
+If not specified,
+.Pa /dev/pwmc0
+is used.
.It Fl E
Enable the pwm channel
.It Fl D
@@ -73,16 +78,19 @@ Configure the duty (in nanoseconds or percentage) of t
.Bl -bullet
.It
Show the configuration of the pwm channel:
-.Pp
+.Bd -literal
pwm -f /dev/pwmc0 -C
+.Ed
.It
Configure a 50000 ns period and a 25000 duty cycle:
-.Pp
+.Bd -literal
pwm -f /dev/pwmc0 -p 50000 -d 25000
+.Ed
.It
Configure a 50% duty cycle:
-.Pp
+.Bd -literal
pwm -f /dev/pwmc0 -d 50%
+.Ed
.El
.Sh SEE ALSO
.Xr pwm 9 ,
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