Here is the compiled cgminer for Raspberry Pi that supports Gridseed: http://0c31ac7857e819701732-7c102875f448c5383a11c1d07426cb3e.r86.cf1.rackcdn.com/cgminer

Here is the source: https://github.com/jmordica/cgminer-gc3355

chips=40 for blade and chips=5 for 5-chip.