This code can be used to access data from Pollin's weather station [0]. It
probably supports more weather stations, but that has not been tested. The
repository provides 3 parts:

 * a C library using libusb to access the weather station
 * a VAPI file for the C library to be used by valac
 * a small demo program written in vala, which outputs the current data log entry

To build the code you need to install libusb (the 0.1 branch) and its header
files. On Debian/Ubuntu you get it by installing 'libusb-dev'. Just type 'make
library' in the project's directory to get the library. You can optionally call
'make demo' to compile the demo binary, if you have valac installed.

You can find documentation for the chip inside the weather station on [1].

[0] http://www.pollin.de/shop/dt/NzE2OTYxOTk-/Haustechnik/Wetterstation/Funk_Wetterstation_WS_0101.html
[1] http://site.ambientweatherstore.com/easyweather/ws_1080_2080_protocol.zip