On 30-11-2016 9:22, Johannes Berg wrote: > On Mon, 2016-11-28 at 21:07 +0100, Arend Van Spriel wrote: >> >> I was wondering about the meaning of the term "parent_bssid". Given >> your remark it means something else than my guess. I actually meant >> the distance to the AP indicated by this BSS. Our gscan code obtains >> the gscan results from firmware and in that API it has RTT info. > > Oh, ok. Right, that's unrelated to the parent_bssid. > > I do wonder how it'd even be possible to *determine* this though? > Perhaps by the ACK timing, assuming it's precise on the AP? There is 11v, 11mc, and some proprietary flavor we call 1-way TOF. However, I do not expect those measurements to be done during the scan procedure as it would affect duration of the whole scan exercise. >> However, recent testing revealed those fields are always coming up >> with zero values :-( > > Heh :-) > >> So right now I am not sure if we need this extension. > > FWIW, we don't seem to have it. I will drop this in next RFC round. Regards, Arend
