DATA TRANSMISSION SYSTEM.

Abstract

This article describes a system where two devices communicate with a host via a common adapter. The first device is operable to check the status of the adapter prior to data transmission, while the second device is operable to transmit data without doing such a status check. The adapter is able to suspend the data transmission being conducted between it and the first device when the second device begins the transmission of data. Subsequently, the first device continuously checks the status of the adapter until it is permitted to transmit the suspended data again. By these arrangements, data from the devices are prevented from missing and the time loss in the second device is minimized.