Module VisionEgg.DaqLPT

Data acquisition and triggering over the parallel port.

This module was programmed using information from "Interfacing the
Standard Parallel Port" by Craig Peacock,
http://www.senet.com.au/~cpeacock.

You may also be interested in http://www.lvr.com/files/ibmlpt.txt.

This module only uses the Standard Parallel Port (SPP) protocol, not
ECP or EPP.  You may have to set your computer's BIOS accordingly.

You may need to be root or otherwise have permission to access the
parallel port.

Example usage:

>>> from VisionEgg.DaqLPT import raw_lpt_module
>>> address = 0x378
>>> out_value = 0
>>> raw_lpt_module.out( address, out_value )
>>> in_value = raw_lpt_module.inp( address+1 )