gtpi1m5jSystem Installation Support Reference

User Device

The user device user exit, UELC, allows you to access a user-defined input device. UELC allows you to open the device, read the next 4KB record from the device, or close the device

UELC is called by the common access device routine (CEL6), when the ddname indicates a user-defined device.

Input

Programming Considerations

Return Values

 CEL6_SUCCESS 
The operation performed successfully.

 CEL6_ERROR 
Error performing the operation.

 CEL6_END_OF_DEVICE 
End of device.