[wireless-regdb] [PATCH 2/3] wireless-regdb: enable VHT80 when world roaming

[Luis R. Rodriguez]

On Mon, Apr 8, 2013 at 11:51 PM, Johannes Berg
<johannes at sipsolutions.net> wrote:
> On Mon, 2013-04-08 at 22:52 -0700, Luis R. Rodriguez wrote:
>> From: "Luis R. Rodriguez" <mcgrof at do-not-panic.com>
>>
>> For VHT, the wider bandwidths (up to 160 MHz) need
>> to be allowed. Since world roaming only covers the
>> case of connecting to an AP, it can be opened up
>> there, we will rely on the AP to know the local
>> regulations.
>>
>> Based on a patch by Johannes Berg for upstream Linux.
>
>> --- a/db.txt
>> +++ b/db.txt
>> @@ -6,10 +6,10 @@ country 00:
>>       # Channel 14. Only JP enables this and for 802.11b only
>>       (2474 - 2494 @ 20), (3, 20), PASSIVE-SCAN, NO-IBSS, NO-OFDM
>>       # Channel 36 - 48
>> -     (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
>> +     (5170 - 5250 @ 80), (3, 20), PASSIVE-SCAN, NO-IBSS
>>       # NB: 5260 MHz - 5700 MHz requies DFS
>>       # Channel 149 - 165
>> -     (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
>> +     (5735 - 5835 @ 80), (3, 20), PASSIVE-SCAN, NO-IBSS
>
> I also have a separate upstream patch that I haven't sent here yet to
> enable 160 MHz by enabling the radar channels (passively), see below;
> any thoughts on that?

Enabling it passively seems fine to me. Michael if we take care of DFS
/ passive scan, etc, are we still OK to use VHT160 if we find an AP
that uses it on the DFS channels (assuming client follows channel
change announcements, etc)?

  Luis