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Dear All, I'm writing a C program to access my simple serial device through RS232. My program is working fine with my device. But if the serial port is already ...
  1. 02-06-2010 #1
    rajmohan_tricom
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    Thumbs up how to identify the status of serial port (Port already opened)

    Dear All,

    I'm writing a C program to access my simple serial device through RS232. My program is working fine with my device. But if the serial port is already opened by some other application, i couldn't able to identify that from my C program.

    How can i get the status of that serial port as "Port Already Opened"

    Thanks for your valuable suggestions.

    Regards,
    Rajmohan
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  2. 02-06-2010 #2
    Rubberman
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    I think you can do that, but I'm not sure what the function is - memory fault... I'll see if I can dig it up in the meantime, unless someone else does first.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!
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  3. 02-09-2010 #3
    theNbomr
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    This is a very old problem that has only been solved through the cooperative use of lock files. See the Serial HOWTO, Chapter 14, for details.
    --- rod.
    Stuff happens. Then stays happened.
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  4. 02-10-2010 #4
    rajmohan_tricom
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    can you send me the link pls
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  5. 02-10-2010 #5
    theNbomr
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    No. My post count is too low to post links. Google can find it easily.
    --- rod.
    Stuff happens. Then stays happened.
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