On Thu, 16 Jun 2011 07:26:40 PM Leo L. Schwab wrote: > Package: wpagui > Version: 0.7.3-3 > Severity: normal > File: /usr/sbin/wpa_gui > > When using wpa_gui to perform a scan for local WAPs, the signal > strengths in the list of results will be diferent depending on what > wpa-driver you've configured for that interface. > > In my case, wpa_supplicant can talk to the iwl3945 driver using > wpa-driver 'wext' or the newer 'nl80211'. If you configure wext, then the > results displayed by wpa_gui will have meaningful signal strengths
There exist a few people who believe the WEXT signal quality measurements are crap - and that is why the quality property is always 0 with the nl80211 framework, it is not implimented there. > displayed. If, however, you configure nl80211, then wpa_gui will display > all signal strengths as zero. > > I did a little experiment using wpa_cli to look at the scan results. > Here's a sample list of results using wpa-driver wext: > > ---- > bssid / frequency / signal level / flags / ssid > 94:44:52:5a:11:4c 2412 173 [WPA-PSK-CCMP][WPA2-PSK-CCMP][WPS][ESS] Belkin.3 > 14C 00:1b:2f:c4:c9:11 2462 219 [WEP][ESS] ewhac-water > 00:14:95:3e:f2:42 2437 190 [WEP][ESS] 2WIRE303 > 00:1b:2f:c4:c9:10 2462 219 [ESS] ewhac-air > 00:1f:27:74:74:00 2462 172 [ESS] local-wifi > 00:1d:7e:57:49:e9 2437 177 [WEP][ESS] linksys_SES_42522 > 00:16:b6:ce:b1:9f 2437 175 [WEP][ESS] jvelez > ---- > > And here's a list of results using wpa-driver nl80211: > > ---- > bssid / frequency / signal level / flags / ssid > 00:1b:2f:c4:c9:10 2462 -32 [ESS] ewhac-air > 00:16:01:92:e1:89 2417 -83 [WPA-PSK-TKIP][ESS] BERLOGA-101 > 94:44:52:5a:11:4c 2412 -83 [WPA-PSK-CCMP][WPA2-PSK-CCMP][WPS][ESS] Belkin.3 > 14C 00:1b:2f:c4:c9:11 2462 -33 [WEP][ESS] ewhac-water > 00:14:95:3e:f2:42 2437 -62 [WEP][ESS] 2WIRE303 > 00:16:b6:ce:b1:9f 2437 -78 [WEP][ESS] jvelez > ---- > > It seems evident that different signal strength units are returned > from the two wpa-drivers, which is confusing wpa_gui. Please investigate > this matter. A signal measurement in dBm is returned by the nl80211 driver. It could provide the basis for a more meaningful signal indicator in wpa_gui. There difficult part is that wpa_gui doesn't know which driver is being used so it is a little difficult to support two different signal/quality methods based on the information it does know. Thanks, Kel. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
