explain what list chan displays

MFC after:	1 week
This commit is contained in:
Sam Leffler 2006-02-27 19:57:07 +00:00
parent 04a6a8a8e5
commit 451486b569
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=156079

View File

@ -28,7 +28,7 @@
.\" From: @(#)ifconfig.8 8.3 (Berkeley) 1/5/94
.\" $FreeBSD$
.\"
.Dd February 15, 2006
.Dd February 27, 2006
.Dt IFCONFIG 8
.Os
.Sh NAME
@ -650,14 +650,33 @@ To re-enable the broadcast of the SSID etc., use
Display the list of channels available for use taking into account
any restrictions set with the
.Cm chanlist
and
.Cm channel
directives.
directive.
See the description of
.Cm list chan
for more information.
.It Cm list caps
Display the adaptor's capabilities, including the operating
modes supported.
.It Cm list chan
Display the list of channels available for use.
Channels are shown with their IEEE channel number, equivalent
frequency, and usage modes.
Channels identified as
.Ql 11g
are also usable in
.Ql 11b
mode.
Channels identified as
.Ql 11a Turbo
may be used only for Atheros' Static Turbo mode
.Pq specified with Cm mediaopt turbo .
Channels marked with a
.Ql *
have a regulatory constraint that they be passively scanned.
This means a station is not permitted to transmit on the channel until
it identifies the channel is being used for 802.11 communication;
typically by hearing a beacon frame from an access point operating
on the channel.
.Cm list freq
is another way of requesting this information.
.It Cm list mac