comment out the optional "duration" argument to powersave:

only two older cards currently attempt to set this, and it
should not be neccessary anyway;

i've added in a some (commented) info to explain this;

discussed with and ok stsp

1 files changed, 12 insertions, 7 deletions

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 9fb8fbf1df1..325fbcac620 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ifconfig.8,v 1.329 2019/03/26 19:47:08 jmc Exp $
+.\"	$OpenBSD: ifconfig.8,v 1.330 2019/03/27 07:26:18 jmc Exp $
 .\"	$NetBSD: ifconfig.8,v 1.11 1996/01/04 21:27:29 pk Exp $
 .\"     $FreeBSD: ifconfig.8,v 1.16 1998/02/01 07:03:29 steve Exp $
 .\"
@@ -31,7 +31,7 @@
 .\"
 .\"     @(#)ifconfig.8	8.4 (Berkeley) 6/1/94
 .\"
-.Dd $Mdocdate: March 26 2019 $
+.Dd $Mdocdate: March 27 2019 $
 .Dt IFCONFIG 8
 .Os
 .Sh NAME
@@ -1044,15 +1044,20 @@ Write
 to the persistent memory of the network card, and
 enable WEP encryption using that
 .Ar key .
-.It Cm powersave Op Ar duration
+.It Cm powersave
 Enable 802.11 power saving mode.
 Power saving is disabled by default.
-If enabled, the receiver sleep period is set to 100ms,
-though some drivers allow this to be altered via the
-.Ar duration
-argument.
 .\" See driver specific manual pages
 .\" to see details of the implementation relevant to that device.
+.\" XXX
+.\" Undocumented because optional sleep period
+.\" only configurable on legacy an(4) and atw(4) devices.
+.\" XXX
+.\" Op Ar duration
+.\" If enabled, the receiver sleep period is set to 100ms,
+.\" though some drivers allow this to be altered via the
+.\" .Ar duration
+.\" argument.
 .It Cm -powersave
 Disable 802.11 power saving mode.
 .It Cm scan