for upcoming concerts we needed analog inputs in Pure Data on a Raspberry Pi with the MCP3208 converter IC so I created an external for PD to handle the data in addition to the already existing MCP3008 one:
https://github.com/HerrSteiner/wiringPD

schematic and more tips around Raspberry Pi can be found onĀ 
http://www.block4.com/index.php?id=167

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Malte Steiner
media artist | electronic musician
http://www.block4.com

E-mail:mktsteiner@gmail.com
phone: +49 (0) 1775522275