[ath9k-devel] Help! kernel 3.19/4.0 ath9k driver problem, and how to disable 5GHz in ath9k

[Melvin Chow <melvinc@elecomes.com>]

Holger, 

 

Can you help to give us some more specific details how to change this
wpa_supplicant?

I couldn't find I have the wpa_supplication.conf in the /etc/wpa_supplicant/

 

Besides, after this setting applied, does it mean if we could some scanning
in iw wlan0 scan, then I can't see 5GHz???

 

Thanks

 

Best Regards, 

 

Melvin Chow

 

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From: Holger Schurig [mailto:holgerschurig at gmail.com] 
Sent: Friday, 24 April 2015 7:57 PM
To: Melvin Chow
Cc: ath9k-devel
Subject: Re: [ath9k-devel] Help! kernel 3.19/4.0 ath9k driver problem, and
how to disable 5GHz in ath9k

 

There is no need to disable 5 GHz in the driver, because you can do this at
a much lower level.

 

You can tell wpa_supplicant tell what frequencies it should use, e.g. with
scan_freq="2412 2437 2462". It won't ever scan on the 5 GHz frequencies if
you only specify your 2.4 frequencies.

 

Likewise you tell hostapd what frequency to use.

 

Patching a driver for this?  Shudder. :-)

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