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Date:      Mon, 28 Apr 2008 01:22:09 +0200
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-net@freebsd.org
Subject:   Re: Connecting P1i to FreeBSD
Message-ID:  <fv31r2$est$1@ger.gmane.org>
In-Reply-To: <ea7b9c170804262052s1877a325rfffa364fca47f92b@mail.gmail.com>
References:  <fur5qu$u5i$1@ger.gmane.org>	<ea7b9c170804242354g56983458i5a1461ca9d18a015@mail.gmail.com>	<fv0dmo$squ$1@ger.gmane.org> <fv0f8c$f3$1@ger.gmane.org>	<ea7b9c170804262051q4768244blbb4e93381c9a903d@mail.gmail.com> <ea7b9c170804262052s1877a325rfffa364fca47f92b@mail.gmail.com>

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Sepherosa Ziehau wrote:

>>  I think you are using iwi to do the tap, could you put iwi into
>>  monitor mode, since iwi is "smart" device which may filter certain
>>  type of frames in non-monitor mode?

Do you still need these tests since you did your own with the rum=20
device? Apparently my iwi device causes kernel panic when switching=20
modes or some related activity, so it's difficult to work with.

>>  I tested my rum: the beacon template set in the hardware is trashed i=
n
>>  a strange a pattern
> BTW, the pattern is anything beyond 64bytes will be wrapped.  See the
> dump and the beacon content.

Yes, I see what you mean...

>>  What I got in the air; fc duration and certain part of mac address is=
 trashed:
>>  11:04:57.256700 Assoc Request (sephe-adhoc) [1.0* 2.0* 5.5* 11.0* 6.0=

>>
>> 9.0 12.0 18.0 Mbit]
>>         0x0000:  0000 2a01 0032 0430 4860 6c18 f32f 077a
>>         0x0010:  4e9c 3b6a eb9f b01d afbe e402 0000 0000
>>         0x0020:  6400 2200 000b 7365 7068 652d 6164 686f
>>         0x0030:  6301 0882 848b 960c 1218 2403 0101 0602
>>         0x0040:  9056 e96b 88d0 f6ef 5cc9 1d
>>
>>  The actual beacon mbuf content:
>>  80 00 00 00 ff ff ff ff ff ff 00 18 f3 2f 07 7a
>>  4e 9c 3b 6a eb 9f 00 00 00 00 00 00 00 00 00 00
>>  64 00 22 00 00 0b 73 65 70 68 65 2d 61 64 68 6f
>>  63 01 08 82 84 8b 96 0c 12 18 24 03 01 01 06 02
>>  00 00 2a 01 00 32 04 30 48 60 6c
>>
>>  After several small code change, I found that beacon template size
>>  can't exceeds 64bytes.  Small template space means you could only use=

>>  rum IBSS in 11b mode.  I have tried to setup BEACON_BASE1 but without=


I tried, and I can't run rum in IBSS in 11b (at least the device in=20
question ignores it as always). Can you?

>>  result.  If it is not a hardware design flaw then we will need data
>>  sheet to make it correct.

I don't think it's a hardware fault since it "just works" in Windows=20
without any special configuration.

Btw. what hardware revision is your rum device? Mine is C1 (found on the =

label before the firmware version).

I don't know about data sheets, but the Linux driver (rum-equivalent) is =

available from the chips' vendor:=20
http://www.ralinktech.com/ralink/Home/Support/Linux.html
It should be the one for RT2500USB.


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