[wireless-regdb] [PATCH v2 7/8] cfg80211: Add Kconfig option for ITS-G5 band (5.9 GHz)

[Michal Sojka]

On Thu, Nov 26 2015, Johannes Berg wrote:
> On Mon, 2015-11-23 at 19:27 +0100, Michal Sojka wrote:
>> This option is meant for use by drivers and other subsystems to
>> enable
>> support for the Intelligent Transportation System (ITS-G5) band. The
>> option depends on CFG80211_CERTIFICATION_ONUS as the use of this band
>> is
>> restricted. EU allows using it only for certain applications, USA
>> require certification.
>
> Hm. Why do we need this now? I see that you're checking it in ath9k, to
> enable the "ITSG5" channels, but why wouldn't you always do that, now
> that you have the extra checks with the user regdb being required and
> all?

Because in [1] Jouni said that

   "kernel config option + custom regdb would certainly be much closer
   to what I'd like to see from the regulatory enforcement view point"

I also like the fact that the help text mentions the relevant regulatory
documents. I guess the users would appreciate that.

-Michal

[1] http://www.mail-archive.com/ath9k-devel@lists.ath9k.org/msg13795.html