Quoting Zhuo Hao <hzh...@gmail.com>: > Thanks very much for your reply. Right now the only thing I care is the > RSSI, which is included in prism header, but is only a suggested field in > radiotap header.
"Suggested" is somewhat a misnomer. The field 16 was for different purposes by different OSes. Either that field will be deprecated, or it will be standardized, and non-compliant OSes will have to change their code. > From http://www.radiotap.org/suggested-fields/RSSI I know > that the RSSI field is only implemented by OpenBSD system. As there is an > "Antenna signal" field in radiotap header, do you know whether it is the > same with RSSI field. RSSI is measured in arbitrary units, not necessarily in dB. Usually it's the value taken directly from the hardware. > If they are the same thing, why would OpenBSD use both > of them? I don't know if OpenBSD was using both of them. Unlike the fixed length prism header, all radiotap fields are optional. It's possible to fill one field but not the other. -- Regards, Pavel Roskin _______________________________________________ ath5k-users mailing list ath5k-users@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-users
