We are finding that under certain scenarios, various WiFi cards (Atheros, Intel, ...) fail to decode incoming packets for certain periods of time on the order of 5->20ms. We are trying to enable a low-latency wireless link in which losses during this window break our requirement. A retransmission would essentially be too late. During this period, we are trying to determine the reason for loss. Whether it is fading, improper tuning of AGC, failure to account for frequency offset, etc. Ideally, what we would like to know is whether the card *tried* to acquire the carrier and if so, where it failed. I have noticed several Atheros kernel debug counters which show things such as a PHY error, but it's not clear at what stage it failed. Are there any firmwares or drivers paired with off the shelf 802.11 cards which would be good for trying to debug this? Thanks! George -- 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
