4.10-rc3 rpi issues

[Gerd Hoffmann]

On Mo, 2017-01-23 at 08:18 -0800, Michael Zoran wrote:
> On Mon, 2017-01-23 at 10:53 +0100, Gerd Hoffmann wrote:
> >   Hi,
> > 
> > > I was able to test the mainline 4.10-rc4 kernel with my RPI 2 and
> > > my
> > > edimax wifi.  Basically it works, but it's flaky.  For some weird
> > > reason I can ssh into the RPI 2 through the Wifi(Ethernet
> > > disconnected).  But if I use the RPI 2 to ping certain addresses it
> > > works and others it does work.  All the addresses are on the
> > > same subnet.
> > 
> > Which driver?  I'm using rtl8xxxu, not rtl8192cu.  That description
> > sounds alot like the problems I had with the rtl8192cu driver.  The
> > rtl8xxxu driver works either reliable or not at all for me.
> 
> I think it's rtl8192cu.  How do I select which driver to use?  

With a modular kernel just blacklist the module, like this:

root at pi-dpy ~# cat /etc/modprobe.d/kraxel-blacklist.conf 
blacklist vc4
blacklist rtl8192cu
blacklist 8192cu

With a static kernel turn off CONFIG_RTL8192CU.

Also make sure you have both CONFIG_RTL8XXXU and
CONFIG_RTL8XXXU_UNTESTED enabled.

cheers,
  Gerd