Using the parallel port in C

This is a discussion on Using the parallel port in C within the C Programming forums, part of the General Programming Boards category; Hi I haven't connected much hardware to my PC before, so I thought it would be interesting to do so. ...

  1. #1
    Registered User
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    Using the parallel port in C

    Hi

    I haven't connected much hardware to my PC before, so I thought it would be interesting to do so. I want to use my parallel port to input and output data, possibly doing something like this:

    http://www.codeproject.com/KB/cs/csppleds.aspx
    http://www.codeproject.com/KB/cs/cspplcds.aspx

    I'm using plain C, and not C++ or anything.

    Thanks

  2. #2
    Kernel hacker
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    It is possible, but if you have a modern OS (such as Windows NT onwards or any version of Linux), you can't write directly to the parallel port - you will need a driver to access the port itself. The linked page shows how this works.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

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