[ath9k-devel] RE : [AR9280] unable to get noise level

[Ben Greear <greearb@candelatech.com>]

On 10/15/2010 05:35 AM, mickael.masson at orange-ftgroup.com wrote:
> Hi Mohammed, Hi all,
>
> We tried with the latest compat-wireless tree (as explained in http://wireless.kernel.org/en/users/Download/hacking#Git_trees_you_will_need) and we got same results with the command:
> $ cat /proc/net/wireless
> Inter-| sta-|   Quality        |   Discarded packets               | Missed | WE
>   face | tus | link level noise |  nwid  crypt   frag  retry   misc | beacon | 22
>   wlan1: 0000   30.  -80.  -256        0      0      0     14     18        0
>   wlan2: 0000    0     0     0        0      0      0      0      0        0
> mon.wlan2: 0000    0     0     0        0      0      0      0      0        0
>
> Noise is always equal to -256.
> We knew that API changed when<iw>  tool was released (and consequently<wireless-tool>  was deprecated) but we thougth that read /proc/net/wireless would still provide reliable information. It seems that we were wrong!

I'm attaching patches to make this work, but the maintainers are not interested in these
patches upstream last I checked, so you'll have to apply them yourself.

The status/flags part of the patch is a real hack (exposes internal flags field with
no translation), but it can show you if the interfaces are scanning or not, etc.

This patch also shows current rate as a new field in /proc/net/wireless.

Please let me know if you have any questions.

Thanks,
Ben


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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