On 25 May 2010 20:42, Luis R. Rodriguez <[email protected]> wrote:

> The passive scanning flag is used to help with cards who are
> built to world roam. Part of the world roaming compromise is
> to not restrict you from some channels completely but instead
> to let you sit idly and passivly scanning, that is not issuing
> probe requests. If the STA then picks up a beacon from an AP
> then it knows that country does allow the STA to operate.
> It then can lift its passive scan flag and let you send probe
> requests too. If you did not have a no-ibss flag it would
> then let you use a beaconing mode of operation after it lifted
> the passive scanning flag.

>> ath9k-related Kernel Logs:
>> [    7.008816] ath: EEPROM regdomain: 0x6a
>> [    7.008822] ath: EEPROM indicates we should expect a direct regpair map
>> [    7.008830] ath: Country alpha2 being used: 00
>> [    7.008835] ath: Regpair used: 0x6a
>
> And this is why, your card was programmed to world roam. See:
>

It was my understanding that the regulatory domain embedded in the
card firmware was used only to disable some channels completely, on
the basis of the fact that the radio/antenna hardware could have been
untested on those.
I don't understand (from a compliance point of view) why it can force
some channels to passive scanning: since this is purely a matter of
which nation the card is operating in, shouldn't it be managed only by
CRDA?

Cheers,

Luca
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