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IRP_MJ_WRITE/IRP_MJ_READ question

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Dan
2009-08-08
2013-05-20
  • Dan

    Dan - 2009-08-08

    I am at a loss of what the following information is telling me.  The application (COM3) sends the client (COM4) 18 bytes of data and the client receives 34 bytes of data.  COM3 and COM4 are Com0Com port pairs.

    160  0.00000000  Hub.exe  IOCTL_SERIAL_WAIT_ON_MASK  com0com20 
    161  0.00000000  AutomatedShakeo  IRP_MJ_WRITE  com0com10  Length 18: 1Z1801790300003703
    160  0.07959360  SUCCESS 
    161  0.00002466  SUCCESS 
    162  0.00000000  Hub.exe  IRP_MJ_READ  com0com20  Length 50000
    162  0.02801856  TIMEOUT  Length 32: 1Z1801790300001Z1801790300003703

    What is happening and what can I do to prevent this?

    Thank you,
    Dan

     
    • Vyacheslav Frolov

      1Z180179030000 was sent by previous IRP_MJ_WRITE (possible by other application).

       
    • Dan

      Dan - 2009-08-12

      Thank you!  That was the problem. 

       

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