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From: "Luis R. Rodriguez" <mcgrof@gmail.com>
Date: Mon, 23 May 2011 12:26:14 -0700
Message-ID: <BANLkTimizNePq-GFsOYxNtfDNLc8kqjJFw@mail.gmail.com> (sfid-20110523_212653_703697_79FDD703)
Subject: Re: ath9k 9380: All 5Ghz channels flagged as passive-scanning
To: Ben Greear <greearb@candelatech.com>
Cc: Mohammed Shafi <shafi.wireless@gmail.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
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On Mon, May 23, 2011 at 11:52 AM, Ben Greear <greearb@candelatech.com> wrote:
> On 05/23/2011 11:39 AM, Ben Greear wrote:
>>
>> On 05/23/2011 09:54 AM, Ben Greear wrote:
>>>
>>> On 05/23/2011 04:28 AM, Mohammed Shafi wrote:
>>>>
>>>> On Sat, May 21, 2011 at 3:52 AM, Ben Greear<greearb@candelatech.com>
>>>> wrote:
>>>>>
>>>>> This is on 2.6.39-wl+
>>>>>
>>>>> All the 5Ghz channels are showing as passive scanning, which
>>>>> makes them unusable for APs if nothing else.
>>>>
>>>> for me channels 36,40,44,48 are ok in 5ghz. used the latest
>>>> wireless-testing just brought the card up as station mode.
>>>
>>> Most of my systems show the same, at least most of the time.
>>>
>>>
>>>>> Any idea why this is happening?
>>>>
>>>> don't know, may be regulatory.
>>>
>>> After a reboot and an idle weekend, mine also look normal.
>>> So, it's something transient it appears.
>>
>> Err, I mis-spoke..the 9380 system still shows passive
>> scanning everywhere...
>
> Busted one:
>
> ath: EEPROM regdomain: 0x6a
> ath: EEPROM indicates we should expect a direct regpair map
> ath: Country alpha2 being used: 00
> ath: Regpair used: 0x6a
>
> cfg80211: Calling CRDA for country: US
> cfg80211: Regulatory domain changed to country: US
> cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain,
> max_eirp)
> cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
> cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
> cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
> cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
> cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
> cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
>
>
> Bleh, seems my Sparklan 127 NIC is set to world-roam :(
>
> What a total pain in the arse!

Its what the card was designed and programmed for. The only thing you
can do with world roaming cards then is just scan, and if you find a
beacon on a channel which is a non-DFS channel beaconing will be
enabled then.

  Luis