Fw: Fw: hostapd related error

[Arend van Spriel]

On 02/15/2013 02:05 PM, RAVIKANT PATEL wrote:
> 
> 
> 
> 
> 
>>> channel [11] (12) is disabled for use in AP mode, flags: 0x3
>>
>>> wlan0: IEEE
>>>    802.11 Configured channel (12) not found from the channel list of current mode (1) IEEE 802.11g
>>> wlan0: IEEE 802.11 Hardware does not support configured channel
>>>
>>>> A: what hardware/driver are you using?
>>>
>>> Could not select hw_mode and channel. (-4)
>>> wlan0: Unable to setup interface.
>>> Flushing old station entries
>>> Deauthenticate all stations
>>> nl80211: Remove interface ifindex=16
>>> netlink: Operstate: linkmode=0, operstate=6
>>> nl80211: Set mode ifindex 7 iftype 2 (STATION)
>>>
>>>
>>> in our hostapd.config file countrycode -JP & chennel-12 is set
>>> in iw reg get command also shown country jp & related channel
>>> then why this error come
>>>
>>> please give me a reply soon
>>
>> As said by Jouni and others. Channel 12 is a passive channel, which
>> basically does not allow transmit. Only devices, ie. access-point
>> equipment, that have regulatory clearance can transmit on such a
>> channel. Setting the country code will not do the trick as the device
>> driver can (and ath9k probably will) specify there own custom refulatory
>> domain. Do you see following line in the kernel log:
>>
>> cfg80211: Ignoring regulatory request Set by core since the driver uses
>> its own custom regulatory domain
>>
>> Regards,
>> Arend
>>
>>
>>
>> ok i understand what you want to say but can i change my channel no 12 & 13 to enabled by change in driver code or any way.
>> because in japan & gerneny this 12 & 13 channel is allowed then how can i access them?
>>
>> please give your suggetion.
>>
> 
> There is no way unless you are willing to break the laws and
> regulations. Equipment that is allowed on those channels in the
> countries you mention will need to comply to strict requirements. As
> this can not be guaranteed with open-source code (can be used in a
> variety of enviroments and platforms) the drivers and wireless subsystem
> in general tends to stay on the safe side. So am I so: there is no way.
> 
> Gr. AvS
> 
> but in japan 12 & 13 channel is used so it is legel there so there is some way that we can unable it so we can used this channel in japan but i don't know how ,so suggest me please
> 

It is legal there when complying to their regulatory requirements. I am
running out of words to make this clear. Let it sink in and read back
the emails you received on this issue. If it still does not make the
connection in your cerebral system, there is not much I can do for you.

Gr. AvS

Gr. AvS