From: Johannes Berg <johannes@sipsolutions.net>
To: Ben Greear <greearb@candelatech.com>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: A good way to get CSI info to user-space?
Date: Tue, 24 Oct 2017 07:54:22 +0200 [thread overview]
Message-ID: <1508824462.2639.25.camel@sipsolutions.net> (raw)
In-Reply-To: <76d6a1ad-2dc4-0542-808f-4be459c3508a@candelatech.com>
On Mon, 2017-10-23 at 13:59 -0700, Ben Greear wrote:
> > The CSI data has variable length [1] but it's fundamentally always tied
> > to a specific frame and as such we've always attached it to that frame
> > using a radiotap vendor namespace.
> >
> > You can easily implement that in a mac80211 driver since it has support
> > for that via RX_FLAG_RADIOTAP_VENDOR_DATA and the associated struct
> > ieee80211_vendor_radiotap that you put into the skb's head.
> >
> > Why should anything else be needed?
>
> So this would only show up in user-space in something like a pkt-capture?
Sure. But since you can easily add virtual monitor interfaces at any
time, that doesn't really mean anything.
johannes
next prev parent reply other threads:[~2017-10-24 5:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-23 17:54 A good way to get CSI info to user-space? Ben Greear
2017-10-23 20:30 ` Johannes Berg
2017-10-23 20:59 ` Ben Greear
2017-10-24 5:54 ` Johannes Berg [this message]
2017-10-24 13:36 ` Ben Greear
2017-10-24 13:38 ` Johannes Berg
2017-10-24 13:50 ` Ben Greear
2017-10-24 13:55 ` Johannes Berg
2017-10-24 20:15 ` Ben Greear
2017-10-25 14:30 ` Zefir Kurtisi
2017-10-25 14:43 ` Ben Greear
2017-10-25 15:35 ` Zefir Kurtisi
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