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