[ath9k-devel] Country code or else hidden problem

[Darko <darko@veze.net>]

???? Monday 26 January 2009 18:33:46 ?????????:
> On Mon, Jan 26, 2009 at 09:02:06AM -0800, Darko wrote:
> > Hi,
> >
> > I have bought an DWA 547 card recently, after first unsuccessful try with
> > TP-link WN861N ?(same problem as
> > https://lists.ath9k.org/pipermail/ath9k-devel/2008-October/000450.html)
> > As client DWA 547 works ok ( didn't try 802.11n, have no such AP).
> > As AP followed instructions from http://wireless.erley.org/git.html
> > Kernel is 2.6.29-rc2-wl taken from git 24.01.2009
> > hostapd is 0.6.7
> > iw is 0.9.9
> > OS is slackware 12.2
> >
> > so:
> > #modprobe ath9k debug=0x00000080
>
> Thanks for trying with this.
>
> > #dmesg
> > ...
> > [ 1019.585770] ath9k: 0.1
> > [ 1019.585872] ath9k 0000:02:0a.0: PCI INT A -> Link[LNKF] -> GSI 11
> > (level, low) -> IRQ 11
> > [ 1020.011640] ath9k: Country alpha2 being used: &A
>
> This is fixed by the patch attached.
>
> From: Luis R. Rodriguez <lrodriguez@atheros.com>
> Date: Mon, 26 Jan 2009 06:41:48 -0800
> Subject: [PATCH] ath9k: fix debug print on regd
>
> With debugging enabled and with ATH_DBG_REGULATORY
> selected we wouldn't get the full print out of one line,
> reason is we used "," instead of nothing to separate two
> lines.
>
> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
> ---
> ?drivers/net/wireless/ath9k/regd.c | ? ?2 +-
> ?1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/wireless/ath9k/regd.c
> b/drivers/net/wireless/ath9k/regd.c index 90f0c98..ec88f78 100644
> --- a/drivers/net/wireless/ath9k/regd.c
> +++ b/drivers/net/wireless/ath9k/regd.c
> @@ -447,7 +447,7 @@ int ath9k_regd_init(struct ath_hal *ah)
> ??????}
>
> ??????DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY,
> -?????????????"Country alpha2 being used: %c%c\n",
> +?????????????"Country alpha2 being used: %c%c\n"
> ??????????????"Regpair detected: 0x%0x\n",
> ??????????????ah->alpha2[0], ah->alpha2[1],
> ??????????????ah->regpair->regDmnEnum);

Thanks for fast answer. If everyone I work with act so fast I would be a rich 
and consequently you will be rich too :) (sorry for my English).

It works now. Two new lines in dmesg are:
[ ?620.728161] ath9k: Country alpha2 being used: AM
[ ?620.728173] Regpair detected: 0x30

Little observation, more connected to hostapd than ath9k, but it can help 
someone. I don't know if it is specific to D-Link DWA 547, but it looks like 
general one. Hostapd can't start twice with same country set. It's 
complaining: Failed to set country code
One solution is (in hostapd.conf country code is US):
#hostapd hostapd.conf
<Ctrl-C>
#iw reg set DE
#hostapd hostapd.conf

Darko