XopHeT - 2014-10-24

Hello, guys!
I'm currently writing device driver and I want to extend ModbusSlaveComPort;
I wrote devdesc file, and now I'm trying to write a library for my driver.
Tall me, please: how could I write my functional block extending ModbusSlaveComPort (and could I do this thing, or I should write my own modbus driver from 0)?
How could I receive parameter data, that ModBusSlaveComPort reads?