gtpa2m3kApplication Programming

Input Device Support

A package exists to provide common input device support. You can use this package when doing sequential 4 KB reads from 1 of the following devices: tape, general data set, virtual reader, or a user-defined medium. Once a data definition name has been set up for the device, you can use that name to perform operations. Use the ZDSMG DEF command to define the DD name. The input support package takes the data definition name as input and performs an open, read, or close on the device. The application does not need device-specific information; only the data definition name is needed. See TPF System Installation Support Reference for more information.