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From: Anatol Pomozov <anatol.pomozov@gmail.com>
To: gregory.greenman@intel.com, johannes.berg@intel.com,
	emmanuel.grumbach@intel.com, linux-wireless@vger.kernel.org
Subject: State of indoor navigation (11MC) in wireless core API
Date: Wed, 18 Nov 2015 21:53:23 -0800	[thread overview]
Message-ID: <CAOMFOmX+D7sqjL+sKE3ae=6gowW-LJv1dHssdF71nTWODA950w@mail.gmail.com> (raw)

Hi

There is huge interest both from hardwire and software vendors in
using Indoor Navigation at mobile devices. We are interested in making
the ChromeOS ecosystem using this feature as well.

I checked how Android implements indoor navigation where it is used
for a while. It defines its custom API called Round-trip time [1].
Broadcom chips firmware implements 11MC draft for this.

I looked at current Linux tree and do not see any standard API for
this feature. iwlwifi/mvm/debugfs-vif.c file mentions "Time of Flight"
that seems 11MC related. Though this driver uses debugfs to
communicate with the driver. It does not sound like a best way to do
it. I would expect a callback in cfg80211 interface. Does anybody work
on more conventional API for this 11MC feature?

I expect that many wireless chips are going to implement 11MC in the
nearest future. Having such clean API from the start will simplify the
feature development.

[1] https://android.googlesource.com/platform/hardware/libhardware_legacy/+/master/include/hardware_legacy/rtt.h

             reply	other threads:[~2015-11-19  5:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-19  5:53 Anatol Pomozov [this message]
2015-11-19  6:41 ` State of indoor navigation (11MC) in wireless core API Grumbach, Emmanuel

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