node-ffi vs. ffi

I thought I had to use 'node-ffi', which actually fails with:

    /home/smite/dev/node-ffi-ipmi/node_modules/node-ffi/lib/cif.js:26
          throw new Error('Invalid Type: ' + typeName)
                ^
    Error: Invalid Type: [object Object]
        at new CIF (/home/smite/dev/node-ffi-ipmi/node_modules/node-ffi/lib/cif.js:26:13)