Serial Controller Driver Design Guide

You can design a driver or application that uses the serial I/O request interface to communicate with a peripheral device connected to a serial port. A serial port is a hardware communication interface on a serial controller, which is a 16550 UART or compatible device. To control a serial port to which a peripheral device is permanently connected, you can design a custom serial controller driver that works with version 2 of the serial framework extension (SerCx2), which replaces version 1 (SerCx). Or, to control a named serial port located on the case of a traditional PC, you can use the inbox Serial.sys and Serenum.sys drivers.

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