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From: "Luis R. Rodriguez" <mcgrof@qca.qualcomm.com>
Date: Mon, 19 Sep 2011 14:54:37 -0700
Message-ID: <CAB=NE6XQDqG+En2KWOyKGUVT1SWm1rwMwOxMjpE8CjYfvwvOqw@mail.gmail.com> (sfid-20110919_235504_704262_1BAD6A65)
Subject: Re: [PATCH v2 2/4] ath9k_hw: clean up tx power handling
To: Felix Fietkau <nbd@openwrt.org>
Cc: linux-wireless@vger.kernel.org, linville@tuxdriver.com
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Sender: linux-wireless-owner@vger.kernel.org

On Mon, Sep 19, 2011 at 2:45 PM, Luis R. Rodriguez
<mcgrof@qca.qualcomm.com> wrote:
> On Mon, Sep 19, 2011 at 2:21 PM, Felix Fietkau <nbd@openwrt.org> wrote:
>> I looked at the other ath driver and I see no indication that it's related
>> to DFS in any way.
>
> I have verified this just now as well, it seems it was only used to
> support an ioctl to userspace to enable users to update a tpscale
> value but I see no documentation about this. Next question is who in
> usersapce sets this. I wonder if its done through userspace after
> measuring some TPC reports from STAs.

So this comes from supporting a "TR-098" specification, which seems to
be the "Internet Gateway Device data model for the CPE WAN Management
Protocol". I haven't yet been able to map this to the specification
respective component:

http://www.broadband-forum.org/technical/download/TR-098.pdf

  Luis