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.
Dave.
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