On Wed, 2014-08-13 at 19:33 +0200, Roberto Riggio wrote: > > It's purely local time - no synchronisation happens. > > Meaning that is the system time. right? No, it's wifi time. TSF in TUs. Whatever that means. It may or may not even have a fixed reference, and it's not even guaranteed to sync with the network. > What if I create an adhoc > interface together with the AP? According to the standard devices > in IBSS shall synch with each other using the tsf info in the beacon > frames. Is this behavior implemented by mac80211? That behaviour is implemented, but it's not guaranteed that the TSF will be used for the radiotap timestamp field. In fact radiotap isn't really specified to be used while operating, so it seems to me that any free-running clock with the right frequency (TUs) would be acceptable. In that sense, the only real use for the timestamp field (barring external information, like knowing what your driver does) would be for relative time inside a single capture file. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
