I am experimenting with WifiManager.startScan() and WifiManager.SCAN_RESULTS_AVAILABLE_ACTION on a number of Android 2.1 devices ( see the code in http://marakana.com/forums/android/examples/40.html ). I see a huge disparity in the time startScan() is completed to the time when WifiManager.SCAN_RESULTS_AVAILABLE_ACTION is received on BroadcastReceiver.onReceive(). The time range I see is from 400 msec to 2.5 sec. On further investigation discovered that handsets using Atheros chips has the highest delay of upto 2.5 sec, handsets using Broadcom devices have have between 400 msec to 800 msec. Is there any knob to tune down this delay in Atheros devices ?
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