[vdr] rotor

Is it possible to use SG2100 rotor without vdr-rotor plugin? Is there any other plugin or standalone application? How can I send raw DiSEQ commands in Linux? Is it possible to see where rotor is currently positioned in vdr-rotor? I tried to use this plugin, but I failed. Signal is always close to 50% (no matter where is receiver), I don't know how to change location of satelites in configuration file (HotBird is not 13E, because rotor is not directed into True South :), I tried to experiment but it is very hard when rotor is outside of room :) I had no problems in Windows, but I need to use it in Linux! I want to start from raw DiSEQ commands... could you point me to any app or doc?