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Date:      Mon, 1 Mar 2010 03:16:04 +0000
From:      Rui Paulo <rpaulo@gmail.com>
To:        Jim Pingle <lists@pingle.org>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: FreeBSD-8.0 802.11n support with ath/mwl
Message-ID:  <AD3FC2C8-C71D-473D-9C10-17031A5564EF@gmail.com>
In-Reply-To: <4B8B2EEA.6010500@pingle.org>
References:  <5fbf03c21002270427s74d0f067gb76cfe10c2794121@mail.gmail.com>	<20100227124308.GA28213@mx.techwires.net>	<5fbf03c21002270501l2e388ec9tbdad684d38609861@mail.gmail.com>	<alpine.BSF.2.00.1002272029130.49218@fledge.watson.org> <C816D0F2-67CD-4361-8FD3-376F7619EF46@gmail.com> <4B89E174.1060802@pingle.org> <1B1F52CC-FF36-4432-9345-73BB673EE7E8@gmail.com> <4B8AAA0B.4010402@pingle.org> <3BA70425-5413-4E04-AA91-85B699B1D8EF@gmail.com> <4B8B25E0.4060604@pingle.org> <5E979157-9E68-4C08-81BD-14255B038D7F@gmail.com> <4B8B2EEA.6010500@pingle.org>

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On 1 Mar 2010, at 03:05, Jim Pingle wrote:

> On 2/28/2010 9:41 PM, Rui Paulo wrote:
>> On 1 Mar 2010, at 02:26, Jim Pingle wrote:
>>> Ah, I wasn't aware of wlandebug(8). However, it doesn't seem to =
operate
>>> on this mwl(4) card. It sets the value of the sysctl =
net.wlan.0.debug
>>> and that doesn't show up on my system. Another system with a ral(4) =
card
>>> does have that sysctl. Judging by the information in the =
wlandebug(8)
>>> man page it appears as though this may be a side effect of mwl doing
>>> much of the work in firmware.
>>=20
>> wlandebug takes an -i argument. I seem to recall you created your =
wlan interface named "mwl_wlan0", so you need to type wlandebug -i =
mwl_wlan0.
>=20
> I saw that, but that is hardcoded to expect wlan<x> (wlan0, wlan1, =
etc)
> for an interface name. Having seen that, I recompiled wlandebug =
without
> the hardcoded interface name check and it didn't work either, but it =
did
> toss an error for the sysctl it was trying to tweak.

The whole system was designed for the interfaces to start with "wlan" =
and be named "wlan<something>".

> That made me look deeper at the code and see it was really just =
setting
> the debug sysctl based on flags that wlandebug was aware of. Handy, =
but
> the same thing could be done by hand with sysctl and some bitwise math
> in a pinch, assuming the interface has the right oids. (Which mine
> doesn't, for some reason...)

The purpose of wlandebug is to not do any math by hand.

--
Rui Paulo




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