On Tuesday, October 04, 2011 04:50:42 PM Adrian Chadd wrote: > Also whilst I'm at it, "SPECTRUM_MANAGEMENT" is a very broad flag to set. Hm, 802.11-2007 5.4.4 "Spectrum management services" explicitly mentions that both services TPC and DFS are required in some regulatory domains for operation in the 5 GHz band. > For example: you may not want to do DFS on the AR5416 NICs because > (as documented in the open hal and earlier ath9k bits) there isn't > support for radar pulses on the ext channel. So even if you had a > successful DFS algorithm for this NIC, you'd have to somehow tell > the DFS machinery that HT40+DFS channels aren't supported but > HT20+DFS channels are. well, that's a pity. We do have seperated HT feature sets for each band but they are not seperated by operation mode... [ Just for fun: Do you know how the AR5418 handled radars in the proprietary turbo mode in the 5 GHz band? And how does Atheros own driver/stack/etc. deals with this limitation? After all Unex sold/sells the DNBA-81 on their product page as: <http://www.unex.com.tw/product/dnba-81> "DNBA-81 is a 802.11n 2x3 2-stream a/b/g dual band wifi Cardbus designed specifically for laptops and *access points*/ home gateways/consumer electronics/multimedia entertainment devices/peripherals with standard Cardbus slot." ] Regards, Chr -- 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
