Re: [Fwd: Re: Trouble Associating with ath5k on AR5212]

[Will Keaney <keaneyw@gmail.com>]

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Will Keaney wrote:
> Bob Copeland wrote:
>   
>>> I also have to manually set the reg domain to US every time I load the
>>> ath5k module. �I tried configuring wpa_supplicant.conf to do this
>>> itself, but that doesn't seem to work. �It would be nice to have a
>>> module parameter for setting this at load time.
>>>     
>>>       
>> I may be wrong but I think that only works in wpa_supplicant if you
>> use -Dnl80211 (instead of -Dwext).
>>
>> FWIW in the default world roaming domain you can still connect to most
>> APs.  Besides iw/wpa_supplicant, pending patches to ath5k will set the
>> default regdomain automatically based on the value stored in the eeprom.
>>   
>>     
> Ahh, interesting.  I didn't see nl80211 documented in the wpa_supplicant
> example configs or man page. I'll give that a shot.
> I seem to get much better scanning results with the region set properly,
> than on the world roaming domain.
>   
I don't know if it's relevant or not, but when using -Dnl80211 I see a
bit of odd behavior:
- wpa_supplicant is able to set the region automatically. Yay!
- scanning produces quite an extensive list of APs, but most of them
don't have SSIDs listed.  This isn't in itself too strange, since I know
that there are 2 networks nearby each with several repeaters that do not
broadcast SSID.  However, one of them (chmc_guest) is identified in the
scanning output when using -Dwext.
- All of the networks show a signal strength of 0.  -Dwext shows varying
signal strengths for each network.  Considering that I am unable to
associate with any of them, I have to wonder which driver is producing
spurious output.

I would also like to note that the maximum Tx Power of the card is
significantly different between madwifi and ath5k.  In madwifi, it maxes
at 17dBm; in ath5k, it maxes at 27dBm.  I don't know if it actually is
using these values, or if one or both drivers are reporting Tx power
incorrectly.

Will


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