My problem is likely unrelated, but could you (Tobias) say precisely
what revision of trunk you are using?

Freshly compiled trunk r33202 w/ default config does not appear to
boot at all on my OM1P (ar2315 chipset), i.e. no response on eth0.
However, I don't think the bugs mentioned w/ compat-wireless in this
thread could cause that.

On Sat, Aug 4, 2012 at 7:34 PM, Tobias Diedrich
<ranma+open...@tdiedrich.de> wrote:
> Compiling OpenWRT from trunk, I've found that there are issues with
> setting txpower on AR2417:
>
> - No txpower setting in LuCI gui
> - iw phy phy0 info shows 0dBm for all channels regardless of regdomain
>
> [    9.332000] cfg80211: Calling CRDA to update world regulatory domain
> [    9.340000] cfg80211: World regulatory domain updated:
> [    9.344000] cfg80211:   (start_freq - end_freq @ bandwidth), 
> (max_antenna_gain, max_eirp)
> [    9.352000] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 
> 2000 mBm)
> [    9.360000] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 
> 2000 mBm)
> [    9.364000] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 
> 2000 mBm)
> [    9.372000] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 
> 2000 mBm)
> [    9.380000] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 
> 2000 mBm)
>
> root@OpenWrt:/# iw phy phy0 info
> Wiphy phy0
>         Band 1:
>                 Frequencies:
>                         * 2412 MHz [1] (0.0 dBm)
>                         * 2417 MHz [2] (0.0 dBm)
>                         * 2422 MHz [3] (0.0 dBm)
>                         * 2427 MHz [4] (0.0 dBm)
>                         * 2432 MHz [5] (0.0 dBm)
>                         * 2437 MHz [6] (0.0 dBm)
>                         * 2442 MHz [7] (0.0 dBm)
>                         * 2447 MHz [8] (0.0 dBm)
>                         * 2452 MHz [9] (0.0 dBm)
>                         * 2457 MHz [10] (0.0 dBm)
>                         * 2462 MHz [11] (0.0 dBm)
>                         * 2467 MHz [12] (0.0 dBm)
>                         * 2472 MHz [13] (0.0 dBm)
>                         * 2484 MHz [14] (disabled)
>
>
> One issue seems to be fallout from
> http://git.kernel.org/?p=linux/kernel/git/linville/wireless-next.git;a=commitdiff;h=eccc068e8e84c8fe997115629925e0422a98e4de
> AFAICS max_power for the channels is never set and thus
> min(chan->max_power, chan->max_reg_power) is 0.
>
> This patch tries to fix this (but is probably wrong :))
> After applying this patch "iw phy phy0 info" looks good, but
> WiFi Analyzer on my phone still shows a very weak signal for the AP.
>
> Until I do this:
> root@OpenWrt:/# iw phy phy0 set txpower fixed 0
> root@OpenWrt:/# iw phy phy0 set txpower auto
>
> And then the signal strength is good.
>
> iw phy phy0 set txpower fixed|limit still doesn't accept values above 0 for
> some reason though.
>
> Index: compat-wireless-2012-07-16/drivers/net/wireless/ath/ath5k/base.c
> ===================================================================
> --- compat-wireless-2012-07-16.orig/drivers/net/wireless/ath/ath5k/base.c     
>   2012-08-05 01:42:19.141413438 +0200
> +++ compat-wireless-2012-07-16/drivers/net/wireless/ath/ath5k/base.c    
> 2012-08-05 01:44:19.957568271 +0200
> @@ -325,6 +325,8 @@
>                 if (!ath5k_is_standard_channel(ch, band))
>                         continue;
>
> +               channels[count].max_power = AR5K_TUNE_MAX_TXPOWER;
> +
>                 count++;
>         }
>
>
> --
> Tobias                                          PGP: http://8ef7ddba.uguu.de
> _______________________________________________
> openwrt-devel mailing list
> openwrt-devel@lists.openwrt.org
> https://lists.openwrt.org/mailman/listinfo/openwrt-devel



-- 
Ben West
http://gowasabi.net
b...@gowasabi.net
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