168c:002a 5 ghz doesn't work on Atheros AR9280

[Erno Kuusela]

The hardware supports 5 ghz as far as I can tell.
Using the ath9k driver, iwlist freq shows only 2 ghz channels:

lo no frequency information.

eth0 no frequency information.

wmaster0 no frequency information.

wlan0 13 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Current Frequency:2.442 GHz (Channel 7)

ProblemType: Bug
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: playsign 2226 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0400000 irq 22'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:14f15051,10250253,00100000'
   Controls : 14
   Simple ctrls : 7
Date: Tue Feb 23 08:20:53 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Acer Extensa 5635ZG
NonfreeKernelModules: nvidia
Package: linux-image-2.6.31-19-generic 2.6.31-19.56
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-19-generic root=/dev/sda2 loop=/hostname/disks/root.disk ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-19-generic N/A
 linux-firmware 1.25
SourcePackage: linux
Uname: Linux 2.6.31-19-generic x86_64
dmi.bios.date: 05/07/2009
dmi.bios.vendor: Phoenix
dmi.bios.version: V0.3213
dmi.board.name: BA50-MV
dmi.board.vendor: Acer
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenix:bvrV0.3213:bd05/07/2009:svnAcer:pnExtensa5635ZG:pvrNotApplicable:rvnAcer:rnBA50-MV:rvrNotApplicable:cvnAcer:ct10:cvrN/A:
dmi.product.name: Extensa 5635ZG
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer

[Erno Kuusela (erno-iki)]

I don't see any sign in kernel messages that it's picking the right regulatory domain.

[ 19.572657] cfg80211: Calling CRDA to update world regulatory domain
[ 20.118695] cfg80211: World regulatory domain updated:
[ 20.118699] (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 20.118702] (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 20.118705] (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 20.118707] (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 20.118710] (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 20.118712] (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

How do I set it, or ask what the current setting is?

This didn't work

¤ sudo env COUNTRY=FI crda
Failed to set regulatory domain: -22

[Erno Kuusela (erno-iki)]

Ok, regulatory domain was set wrong but fixing it didn't help.

[ 123.165138] cfg80211: Calling CRDA for country: FI
[ 123.167794] cfg80211: Regulatory domain changed to country: FI
[ 123.167799] (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 123.167804] (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 123.167808] (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 123.167812] (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 123.167816] (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)

but still

wlan0 13 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Current Frequency:2.442 GHz (Channel 7)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.