On 10/24/06, Johannes Berg <[email protected]> wrote:
Alright, here's more now that I can think clearly again :)
> ISO 3166-1, as part of the ISO 3166 standard, provides codes for the names
> of countries and dependent areas. It was first published in 1974 by
> the International Organization for Standardization (ISO) and defines three
> different codes for each area:
>
> * ISO 3166-1 alpha-2, a two-letter system with many applications,
> most notably the Internet top-level domains (ccTLD) for countries.
> * ISO 3166-1 alpha-3, a three-letter system.
> * ISO 3166-1 numeric, a three-digit numerical system, which is
> identical to that defined by the United Nations Statistical Division.
>
> Although this would usually be only used in userspace IEEE-802.11d
> has made use of ISO-3166-1 alpha 3. This mapping was added
> to enhance stack support for IEEE-802.11d and 802.11 Regulatory
> Domain control. ieee80211_regdomains makes use of this module
> by creating a map of iso3166 alpha3 country code to stack
> regulatory domain.
But if 802.11d only requires alpha 3, why put all the other stuff into
the kernel as well?
It would have been a half ass job for kernel iso3166-1 support, also
though -- I feel we should leave this as-is until we have an ironed
out userspace regulatory daemon. This would make regulatory
domain/802.11d/MLME daemon optional to introduce for distributions
until that part is done and distributions have happily adopted
something. Since its a complete iso3166-1 db I wondered if any other
modules would make use of it. An example of a similar db in the kernel
is for Native Language Support (NLS) for filesystems. If no modules
can make use of it the quicker this should be removed once we have a
userspace API ready.
CC'ing LKML to see if any other module can make use of this.
Luis
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