EDC5122I Input/output error.

Explanation
 An input or output error occurred. This message
is equivalent to the POSIX.1 EIO errno.

System action
 The request fails.  The application continues
to run.

Programmer response
 Refer to z/OS XL C/C++ Runtime Library Reference
for the function being attempted for the specific reason for failure.

Symbolic Feedback Code
 EDC502