On Fri, Sep 08, 2017 at 12:30:42PM +0100, Alan Young wrote: > Is anyone working on SOF_TIMESTAMPING_TX_SOFTWARE for any wireless drivers?
Not that I know of. > I am particularly interested in ath9k and ath9k_htc. Perhaps implementing > the necessary calls at the mac80211 layer would be acceptable, so long as > that layer's software tx queue is taken into account. > > I guess the wider question is does it ever make sense to implement this > function for wireless drivers? That is, can we usefully do PTP over WLAN? Last time I looked, I didn't see any way to get a useful Tx time stamp, due to aggregation and the opaque firmware blobs in the radio chips. But if you see a way in the ath9k, then by all means do it. Otherwise, just use NTP over wireless. Thanks, Richard ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
