Serial Controller Driver Design for SerCx2
To manage your serial controller, you write a serial controller driver that performs hardware-specific tasks and communicates with SerCx2. Starting with Windows 8.1, SerCx2 is a system-supplied component that handles many of the processing tasks that are common to serial controllers. These tasks include managing time-outs and handling read and write requests sent by clients of the serial controller.
In this section
| Topic | Description |
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A SerCx2-based serial controller driver is a KMDF driver that uses the methods and callbacks in KMDF to perform generic driver operations, and that communicates with SerCx2 to perform operations that are specific to serial controller drivers. |
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SerCx2 simplifies the handling of read (IRP_MJ_READ) and write (IRP_MJ_WRITE) requests for your serial controller driver. In response to a read or write request, SerCx2 issues one or more I/O transactions to the serial controller driver. From the driver's point of view, each transaction is a simple and complete I/O operation. |