Re: [PATCH] mac80211: Add module parameter for setting initial rate in rc80211_simple

[Larry Finger <larry.finger@lwfinger.net>]

Michael Buesch wrote:
> On Sunday 03 June 2007 12:33:36 Olivier Cornu wrote:
>> 2007/6/2, Larry Finger <Larry.Finger@lwfinger.net>:
>>> The initial rate for STA's using rc80211_simple is set to the last
>>> rate in the rate table. This is too fast for the bcm43xx-mac80211
>>> driver. To correct this situation without affecting any other driver,
>>> an initial_rate parameter is added to the rc80211_simple module.
>> What if two different mac80211 device drivers need two different initial rates?
> 
> I'm not sure if that's useful at all. The algorithm will migrate
> away from the initial value very quickly anyway. What about simply
> using 1MBit for B-PHYs and (what's the lowest OFDM rate?) 9M? for
> G and A PHYs.

Although the algorithm will migrate away from the initial value very quickly, it doesn't happen 
quickly enough for the current version of bcm43xx-mac80211 to authenticate.

I tried setting the lowest OFDM rate (6M) and it didn't work either. There is a timeout in 
wpa_supplicant waiting for the WPA handshake. For my BCM4311 to make a connection, the rate must 
start at 1M.

Larry