During the lesson for day 2, you programmed your driver to read control points for your equipment. You created a read request, a read parameters structure, a read response, a proxy extension, a point id, and a point device extension. You made some associations amongst all of these and at the end of the day you had control points with read access to your equipment's data values.
The process for adding write capabilities to your driver's control points is very similar. In fact, you may even find it to be somewhat simpler, since you will be re-using some of the components that you created in day 2's lesson. You will make a Write Request and a Write Parameters structure. You might also add some more properties to your point id. You will then make similar associations with these new items to your proxy extension. After today's lesson, your control points should be capable of reading and writing data values in your field-device.
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