Begin making the code generic for any kind of stream. #3
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There is still more that can be done, but my knowledge of Modbus isn't extensive. For instance, MODBUS_PROTOCOL_TCP is hardcoded, and I assume that a complete generic implementation must provide a way to abstract that, too.
I've also made the API object-oriented by turning functions like
read_coils
into methods onContext
.Note that I don't think these changes should be pulled immediately; this is more of a request for suggestions on how make the API more reusable.