Thread: Linux serial port interrupts

  1. #1
    Registered User
    Join Date
    Apr 2007

    Linux serial port interrupts


    I've been searching all over for c++ serial port interfacing, I've found plenty of basic reading/writing using termios and various other libraries, but I can't seem to find much on the control signals.

    What I want to do is to use something like interrupts (blocking, waiting, etc.) to catch when a control signal is changes (dsr, carrier detect, etc. ) and execute a function.

    I've been able to find this in windows, but it needs the download of the huge windows platform sdk and vidual c++ express to use, and my main pc runs debian, so, a way in linux is what I'm hunting for.

    The polling method seems quite cpu heavy and may not catch all the signals (since it can only poll at regular intervals).

    Thank you for reading.


  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    Probably a good place to start -
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

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