802.11b broken in -CURRENT?

[Sam Leffler]

Bruce Simpson wrote:
> Sam Leffler wrote:
>> Actually this just promulgates misunderstandings and voodoo that 
>> others will ape.  This is what you need to setup an 11b-only ap on 
>> the best available channel:
>>
>> ifconfig wlan create wlandev ath0 wlanmode hostap mode 11b ssid 
>> OpenWrt up
>>
>> For the sta side:
>>
>> ifconfig wlan create wlandev ath0 mode 11b ssid OpenWrt up
>>
>> If the above does not work please enable debugging with wlandebug and 
>> file a PR.
>
> ETOOMUCHCOFFEE :-)
> Yup, I found this worked too.

Sorry for the winging.  In the sta-side case you don't need "mode 11b" 
if the ap is 11b-only; you only need it if you want to force 11b 
operation when talking to a b/g ap.  This can also be done by locking 
down the channel spec with "channel 6:b" (works for both sta and ap 
configs).

The mode knob just controls the set of channels placed in the scan list 
and is mostly useful to constrain operation of multi-band cards and/or 
to reduce scan time (which can also be done with the chanlist control).  
There are techniques we could add to make scanning super-fast but they 
require proper roaming support which isn't feasible w/ the current 
quality of our drivers.

On the ap side there are "pureg" and "puren" knobs for constraining 
operation as 11g and 11n channel specs are bi-modal (b/g and legacy/11n).

    Sam