Re: Help building compat-wireless

[Gary Thomas <gary@mlbassoc.com>]

On 2012-02-29 08:43, Gary Thomas wrote:
> I'm struggling a bit to build compat-wireless in a cross-build environment.
> I normally don't build kernels in-tree, rather I use a build tree, e.g.
> % cd <linux-source>
> % mkdir /tmp/kernel_build
> % make O=/tmp/kernel_build <some_config>
> % make O=/tmp/kernel_build uImage
>
> I can't see how to use this setup with the compat-wireless package.
> I tried [all the combinations I could think of] something like this:
> % cd <compat-wireless>
> % make KLIB=<linux-source> KLIB_BUILD=/tmp/kernel_build
> However, this seems to not work as all I get are errors like this:
> /local/compat-wireless-2012-02-28/config.mk:242: "WARNING: CONFIG_CFG80211_WEXT will be deactivated or not working because kernel was compiled with CONFIG_WIRELESS_EXT=n. Tools
> using wext interface like iwconfig will not work. To activate it build your kernel e.g. with CONFIG_LIBIPW=m."
>
> Does this process work in my workflow? What do I need to do to
> get it going?

I managed to get past this, using this
   % make KLIB=/tmp/kernel_build KLIB_BUILD=/tmp/kernel_build
but to get it to actually build anything, I had to append the
'modules' target, e.g.
   % make KLIB=/tmp/kernel_build KLIB_BUILD=/tmp/kernel_build modules

Next problems:
* How do I select sub-options?  I only want WL12xx support with SDIO, but
   that requires some sub-options to be set that don't appear to happen.
   I get the main wl12xx module, but not wl12xx_sdio or wl12xx_platform_data
* There are a number of files which don't build against my 2.6.37 kernel,
   but none of these are important to me (they are in the bluetooth driver
   which I don't need, but nonetheless it gets built)
* The make/install is terribly broken for cross-builds.

I hacked my way past these problems and finally got some modules which
I can try.  Sadly, they don't work at all:
   # modprobe wl12xx_sdio
   wl12xx: loaded
   # ifconfig wlan0 up
   wl1271_sdio mmc1:0001:2: sdio write failed (-110)
   wl1271_sdio mmc1:0001:2: sdio write failed (-110)
   ...

Note: This driver in my kernel tree gets much farther than this - it
will actually download firmware and talk to the device, so I'm pretty
perplexed by this failure.

Any help greatly appreciated

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------