z/OS User Exits › z/OS Blockmode User Exits—IMS › TIRDEVI—Device Characteristics Exit › Purpose

Purpose

This exit is only used by Gen applications that use Standard Mapping facilities, not by Enhanced Map.The Device Characteristics exit, TIRDEVI, is called every time a message is sent from or received by an application. This exit provides the runtime data stream processing routines for the definition of the specific device characteristics.