AR9280: ar5416PerCalibrationN: NF calibration didn't finish; delaying CCA

[Adrian Chadd]

2011/10/27 Lev Serebryakov <lev at freebsd.org>:
> Hello, Freebsd-wireless.
>
>  I've got pigtails from China at least (55 days of waiting, I love
> Russian Post), and trying my new WiFi card:

:-)

> ath0: <Atheros 9280> mem 0xa0060000-0xa006ffff irq 15 at device 17.0 on pci0
> ath0: [HT] enabling HT modes
> ath0: [HT] 2 RX streams; 2 TX streams
> ath0: AR9280 mac 128.2 RF5133 phy 13.0
>
>  Now I'm trying it in 802.11g mode, as here is no 802.11n clients.
>  System is:
>
> FreeBSD 9.0-RC1 FreeBSD 9.0-RC1 #0: Tue Oct 18 04:44:52 MSK 2011
>
>  802.11g and signal strength seems to be same as with AR5413 based
> card, but here are error on start:

Ok. Is that good or bad?

> ar5416PerCalibrationN: NF calibration didn't finish; delaying CCA

Ignore that. It's fine.

>  Is it worth trying 802.11n without 802.11n clients?

You can certainly flip it on. Just make sure you do this:

ifconfig wlan0 -ampdutx

.. as only A-MPDU RX is currently supported in -HEAD.
(I have a branch in subversion which implements A-MPDU TX, but it's
still very beta work. :)

Thanks,


Adrian