Did you install the needed drivers and modules for the devices? lsmod shows the kernel modules that are up and running so that could be the reason of why you are not able to see anything after lsmod.
When you say "wheezy system" do you mean you are using Debian/Ubilinux?
The operating system is Debian 7 Wheezy for Galileo (v 1.2): galileo-debian - Browse /SD card Image at SourceForge.net
I do not manage to get the drivers for chipsets: Ralink RT3072, Atheros AR5007UG.
I suspect drivers have to be manually compiled and installed: install dev tools, get the source code for the driver, compile, and install.
I would appreciate support for such endeavor.