[ath] AR9285 / AR2427 testers needed!

Adrian Chadd adrian at freebsd.org
Sun Feb 13 19:48:18 UTC 2011

Yup, I've found that out myself on my AR2427 here. It lasts fine for
about 30 minutes, then it becomes increasingly useless in TX. RX seems
perfectly fine.

Things aren't unfortunately going to get any better in the short term.
It looks like I'll have to port over some more of the radio init,
calibration and antenna management code from ath9k before TX will be
stable. If someone wants to help me do it then please, be my guest. I
can give you a simple thing to port over (temperature compensation for
the AR9280/AR9285) that may help.


On 14 February 2011 03:08, Bartosz Fabianowski <freebsd at chillt.de> wrote:
> I just tested the newest code on a box running -stable from 22nd January
> 2011. My NIC is AR2427. The driver attaches to it just fine, wpa_supplicant
> and dhclient work. But the card is extremely instable, losing signal after
> 30 seconds at the latest. The following message is printed on the terminal:
> ath0: bb hang detected (0x80), resetting
> Sometimes, this reset seems successful and network connectivity comes back.
> In most cases though, I need to power-cycle the NIC and re-run
> wpa_supplicant and dhclient.
> Since I had not discovered yet that ath can be built as a separate module, I
> transplanted dev/ath and modules/ath into the main source tree. I also had
> to adjust sys/conf/files and sys/net80211/ieee80211_var.h, adding two
> missing fields in the latter.
> - Bartosz
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