ath countrycode

Eric Anderson anderson at
Wed Feb 8 06:08:49 PST 2006

Marcin Jessa wrote:
> On Wed, 08 Feb 2006 14:13:12 +0100
> Michal Mertl <mime at> wrote:
>> Marcin Jessa wrote:
>>>> Jiri Mikulas wrote:
>>>>> Hello
>>>>> I have ATH cards Wistron CM9 (AR5213),
>>>>> I want to set correct countrycode to use correct channels (ETSI)
>>>>> (channels 1-13 on 11g, channels 100-140 on 11a)
>>>>> but it's "disabled'
>>>>> osika:/# sysctl -a dev.ath.0.countrycode=203
>>>>> sysctl: oid 'dev.ath.0.countrycode' is read only
>>> IMHO that should be changed without booting with a rw sysctl value.
>>> It's indeed strange this value is ro.
>> It probably won't be easy to do change (like just allowing to write to
>> the variable) and I don't really see a need for it. The device is
>> configured/initialized according to this value during device attach
>> (on boot).
>> Why you need to change it during run time? Normally it's a set-once
>> value. In consumer products it should even be set correctly by the
>> vendor/reseller in the HW.
> You're thinking a normal user and I'm thinking an WISP and Access
> points. 
> You're right, this does not need to be changed more than once
> but it's neverless silly if you have to reboot each time you do.
> All the comercial implementations allows you to change this value on
> the fly.

Does unloading/reloading the hal set the new value, or only bootup?


Eric Anderson        Sr. Systems Administrator        Centaur Technology
Anything that works is better than anything that doesn't.

More information about the freebsd-mobile mailing list