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      Latest reply on Jul 21, 2019 4:43 PM by dostak
      dostak Level 1 Level 1 (0 points)

        When I use IOServiceAddInterestNotification() for the IOUSBHostInterface, it returns the following code in decimal.

        268435459

        system(4), sub(0), code(3)

         

        If I use IOServiceAddInterestNotification() for the IOResource of the above object, no error occurs. (The return code is kIOReturnSuccess)

        And I can receive the interest notifications.

         

        I don't know why these things happen.

         

        What does the error code 268435459 mean?

        Do I need to use IOResource's object?