On Wed, 2008-08-06 at 22:08 +0100, Dave wrote: > Dan Williams wrote: > > On Wed, 2008-08-06 at 20:29 +0100, Dave wrote: > >> Dan Williams wrote: > >>> On Tue, 2008-08-05 at 18:48 -0400, Pavel Roskin wrote: > >>>> The userspace is welcome to keep a pool of all APs found by any scans, > >>>> but I don't think drivers should do it. > >>> Drivers need to keep a reasonably complete list of APs internally for > >>> association anyway. You don't want to have to do a full scan just to > >>> associate if you have results from 10 seconds ago that are still valid. > > >> This is not an issue for orinoco cards, as the firmware selects > >> the AP to use independently of any driver scanning. The requirement to > >> use ap_scan=2 means that wpa_supplicant doesn't need to look at the scan > >> results either (except maybe to verify the configuration matches). > > > Well, since the driver supports SSID scanning, we can use ap_scan=1 > > anyway. ap_scan=2 is actually pretty evil since it depends on WEXT > > ordering and whatnot. > > ap_scan=1 requires the use of SIOCSIWWAP (to set desired BSSID), which > the Agere firmware doesn't support. The firmware only supports setting a > desired SSID (via SIOCSIWESSID), so Agere based orinoco is stuck with > ap_scan=2 :( > > Symbol and Intersil don't have this problem. In practice that shouldn't be a problem because drivers (at least ipw2200 does this) usually roam BSSIDs anyway. Technically a bug I think. But honestly, the driver needs to work with ap_scan=1 and I don't see why it couldn't. Dan -- 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
