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Subject: Re: [EXT] Re: [PATCH v2 0/2] add Wide Band Scan support
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 22 Nov 2019 13:45:17 +0100
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To: Sathishkumar Muruganandam <murugana@codeaurora.org>
Cc: linux-wireless@vger.kernel.org, ath11k@lists.infradead.org

On Thu, 2019-11-14 at 18:03 +0530, Sathishkumar Muruganandam wrote:
> On 2019-11-14 12:08, Johannes Berg wrote:
> > On Mon, 2019-11-11 at 13:27 +0530, Sathishkumar Muruganandam wrote:
> > > > How is this related to scanning? It sounds to me like you're just
> > > > (ab)using scan as a somewhat convenient "do some channel hopping" API
> > > > ...
> > > > 
> > > 
> > > Whether this can be used under "iw offchannel" with
> > > NL80211_CMD_REMAIN_ON_CHANNEL?
> > 
> > Are you asking if I would accept wide
> > channel extensions to R-O-C?
> 
> Yes, adding bandwidth config to existing command.
> 
> Something like this,
> 
> iw offchannel <freq> [HT40+|HT40-|80MHz] <duration>
> 
> > Still I guess I'd like to see an actual reason for it.
> 
> Wide band scan is actually moving to a off-channel for a
> specified duration to capture 40, 80Mhz data frames.
> 
> So, I hope offchannel would accommodate this extension.

That certainly makes more sense to me than scan, but it'd *still* be
good to come up with use cases for supporting it and have that in the
commit details.

johannes


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