Message-ID: <4F556DF0.3070806@lwfinger.net> (sfid-20120306_025254_874259_DA918F40)
Date: Mon, 05 Mar 2012 19:52:48 -0600
From: Larry Finger <Larry.Finger@lwfinger.net>
MIME-Version: 1.0
To: John Williams <john@pond-weed.com>
CC: linux-wireless@vger.kernel.org
Subject: Re: [PATCH] rtl8192cu driver ignores eeprom channel plan
References: <20120305213956.7c383096@buffy.scoobygang>
In-Reply-To: <20120305213956.7c383096@buffy.scoobygang>
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Sender: linux-wireless-owner@vger.kernel.org

On 03/05/2012 03:39 PM, John Williams wrote:
> Larry,
>
> The various rtl8192xx drivers read the manufacturer-set channel plan
> into efuse.eeprom_channelplan, but ignore this and use
> efuse.channel_plan (which is never initialized) when deciding which
> channels to allow. The patch below allowed my device, purchased in
> Europe, to see channels 12 and 13 when configured with "iw reg set EC"
>
> It needs more work in order to accept being configured for arbitrary countries: would you like me to work on a more comprehensive patch?

Please - I have plenty to do. I had never had any problems with the allowed 
channels, as I use CRDA and it sets my domain to US, which is as restrictive as any.

I just tested, and the RTL8192CE that I have installed at the moment has 0xA 
(COUNTRY_CODE_WORLD_WIDE_13) in the eeprom, which happens to be what is set in 
rtlpriv->efuse.channel_plan in rtl8192ce. That is not surprising as the card 
came from Realtek and I would expect something appropriate for China.

Larry