Another thing we spoke about at the wireless summit was flushing TX prior to changing channel / scan. Bob, remember the issue with ath5k on the band not coinciding on received skbs since we don't do a DMA RX flush prior to channel change? Well one theory discussed was that we would see that issue disappear if we actually did a proper TX flush prior to channel change since we expect we would not see further incoming frames from our AP if we told it we were going to PS (sending a null func frame). If we implement a proper TX flush then the theory goes that we wouldn't need to do any sort of DMA flush as we would not have any frames pending. So a plan here would be to give that a shot. Luis -- 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