[ath9k-devel] WMP300N-UK Doesn't See 5Ghz SSID

[Paul Koan <gmane@airbred.com>]

Luis R. Rodriguez wrote:

> On Mon, May 18, 2009 at 6:16 PM, Paul Koan <gmane@airbred.com> wrote:
>> Luis R. Rodriguez wrote:
>>
>>> On Mon, May 18, 2009 at 08:14:25AM -0700, Paul Koan wrote:
>>>> Hello,
>>>>
>>>> I have tried lots of different versions of the compat drivers and
>>>> kernels over the months (~20) and I haven't managed to get the pci card
>>>> (AR5146 + AR2133, 168c:0023) in the subject line to see the 5Ghz ssid
>>>> of a WRT610N.
>>>>
>>>> Other devices (even non-N 802.11a) can see the 5ghz ssid.
>>>>
>>>> I am using iw dev wlan1 scan to see what is out there, and it lists all
>>>> the g networks around, and the 2.4Ghz ssid on the WRT610N.
>>>>
>>>> Any ideas why that might be?
>>>
>>> Did you install wireless-regdb and crda?
>>>
>>> http://wireless.kernel.org/download/wireless-regdb/
>>> http://wireless.kernel.org/download/crda/
>>>
>>> What does 'iw list' show?
>>>
>>> Luis
>>
>> Hello, I didn't have cdra and regdb installed, but I do now.
>>
>> Cannot seem to get the country to change however.
> 
> You can set the country after loading ath9k. But keep in mind that
> will only help compliance further. Since all Atheros card already have
> been programmed with a regulatory domain in the EEPROM that is
> respected, you should be fine with regulatory out of the box with
> ath9k.
> 
>> phy0: Atheros AR5416 MAC/BB Rev:2 AR2133 RF Rev:81: mem=0xfd780000,
>> irq=12
> 
> Anyway you have a single band card, as iw didn't even list anything
> for 5 GHz. All AR5416 cards I am aware of sold use the AR2133 which is
> a single band 2.4 GHz radio. The only AR5416+AR5133 (with dual band
> radio) combos that I know of are demo cards here at Atheros.
> 
> This would explain why you can't see your 5 GHz AP.
> 
> If you're lucky maybe you can find an AR9280 dual band on ebay or
> something. AR9280s are dual bands AR9281 are single band 2.4 GHz.
> 
> You can check:
> 
> http://wireless.kernel.org/en/users/Drivers/ath9k
> 
> to see which products ship these.
> 
>   Luis
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Thanks Luis,

That explains it - though there is lots of material online suggesting the 
WMP300N has 5Ghz radio, but if it doesn't it doesn't.

Wrt the Reg domain.  I am in AU and I can set to AU prior to ath9k being 
load and see the results in dmesg, but as soon as ath9k is loaded, it 
switches to AT.  If I iw reg set again, there is no further entries in 
dmesg.

So this could mean either it is setting AU and just not reporting it, or it 
isn't setting AU and leaves it as AT.

Or it is AU anyway because I bought the WMP300N in AU and so the firmware is 
set to AU (dmesg doesn't really support this).

But what is the impact if it is wrong - does it mean that I will not have 
access to the correct range of frequencies in this country?