Incorrect signal levels reported using wpa_supplicant's driver_nl80211

[Marcel Holtmann]

Hi Dan,

> > > > > Soon.  We've got some patches for this, but we'll also need tons of
> > > > > testing.  The WEXT stuff is pretty baked while nl80211 is still under
> > > > > some flux.  But of course the only way we bake nl80211 is by switching
> > > > > to it...
> > > > 
> > > > iirc, we currently we hardcode wext in NM code. How about adding a keyfile
> > > > config that users could use to switch to nl80211 until we feel confident
> > > > that it's good enough for everyone?
> > > 
> > > commit d27df100b587dd95f3256a8baf9db0c5d4380089 in wpa_supplicant allows
> > > you to do that by editing the service file.
> > 
> > that is funny, when I asked for a global command line switch for
> > choosing a different driver, the argument was that the application
> > adding the interface is suppose to do it by itself. Now we can do it in
> > the service file. Never the less ConnMan got its own switch to choose
> > which driver will be used. Does help a lot in testing and is way easier
> > since you don't have to restart wpa_supplicant all the time.
> 
> In reality, NM upstream will just switch over one day and distros that
> use shitty and/or proprietary drivers will need to either (a) fix them,
> or (b) patch NM to use wext locally.  That's how progress gets made.

my goal is to run completely without wext driver in wpa_supplicant and
WEXT disabled in the kernel. However so far it caused some issues. I
think that most of them got fixed, but I never got around fully
verifying it. In the Moblin 2.0 timeframe we had for some time
nl80211,wext as driver selection, but unfortunately that never worked
out. I hope for Moblin 2.2 we are able to get this up and running.

One big missing piece is of course a new stable release of
wpa_supplicant that contains all the fixes.

Regards

Marcel