Em Thursday 17 July 2008 12:02:56 Larry Finger escreveu: > Wireless statistics produced by the RTL8187B driver are not particularly > informative about the strength of the received signal. From the data sheet > provided by Realtek, I discovered that certain parts of the RX header > should have the information necessary to calculate signal quality and > strength. With testing, it became clear that most of these quantities were > very jittery - only the AGC correlated with the signals expected from > nearby AP's. As a result, the quality and strength are derived from the agc > value. The scaling has been determined so that the numbers are close to > those obtained by b43 under the same conditions. The results are > qualitatively correct. > > Statistics derived for the RTL8187 have not been changed. > > The RX header variables have been renamed to match the quantites described > in the Realtek data sheet. Hi, I did some tests here and statistics are better now. I only couldn't use latest wireless-testing because something of latest changes broke communication, I couldn't scan/associate anymore, but using wireless-testing head at d61f20889de4978ed87d2a37d6f27147faec22d1 plus later anaparam*off change, with your patch I can confirm the better statistics, later I'll try to find what in wireless-testing broke here, I didn't have time to look into this today. > > Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> > --- > > Pavel, > > Please check that this patch does not break the RTL8187 statistics. > Perhaps, similar changes should be made there, but I don't have the > hardware. > > Larry -- []'s Herton -- 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
