Communication control method, communication control apparatus, and data recording medium

摘要

A communication control method and apparatus quickly confirms the status of a communication port when connecting a peripheral device 2 and an information device 1 through a communication port of the information device 1 . The communication control method has a first step in which the second module of the information device 1 creates an object and executes a process to connect the device 2 based on a device connection command from the first module, and then eliminates the object when the connection is no longer needed. A second step confirms if the object was already created when the first module instructs the second module to open a connection to the device 2 . A third step determines that the port is closed and the device 2 is not connected if the object is not already created, and instructs the second module to open the port and connect the peripheral device. However, if the object is already created, the third step determines and reports to a higher program level that the port is open and the device 2 is already connected.