How do I make the Data Acquisition Toolbox 2.11 (R2008a) recognize a parallel port reconfigured for bidirectional data transfer?

I have Data Acquisition Toolbox 2.11 (R2008a) installed on my computer. MATLAB is able to communicate with the device that I connect to the parallel port, and is able to send and receive data. I want to reconfigure the parallel port on my machine so that I can change some of the status pins (for eg: Port 1) to allow bidirectional data transfer. I am aware of a setting in the BIOS that allows me to do this.

Answer 1

[MathWorks Support Team]

We only support parallel port configurations that fall under the standard legacy mode. Since we do not test any other configurations, we cannot warrant their full functionality. However, if you wish, you may modify the source code for the Data Acquisition Toolbox's parallel port adaptor at your own prerogative, which is located in the following folder:

     $MATLABROOT\toolbox\daq\daq\src\mwparallel

Substituting $MATLABROOT with the folder that is returned when you execute "matlabroot" in the MATLAB command window.