Improvements to do for the next release (v2.0.0)

[samuelfmlourenco]

• Add a reporting mechanism consisting of a disconnected() function, that returns a boolean that is true in the case that a device got disconnected. This mechanism should not have an effect on other functions, but bulkTransfer() and controlTransfer() should use the mechanism to report. The boolean itself should be a private member of the class, initialized as false. Furthermore, open() should clean it to false.
• Add definitions for the values returned by open(). Use the definitions in the function itself for better readability.
• Create a new function that returns the address of a given endpoint. Suggestion: quint8 endpointAddress(quint8 endpoint) . This could read from the CP2130 OTP ROM.
• Create a new function to define the pin modes on the fly.
• Add definitions according to the AN792 from Silicon Labs.

[samuelfmlourenco]

Since bulkTransfer() and controlTransfer() are no longer const members (due to the implementation of the reporting mechanism mentioned above), this means that many other functions cannot be const members as well. This breaks compatibility. Thus, v1.2.0 will no longer be released. Instead, v2.0.0 will be released in its place.

[samuelfmlourenco]

Instead of a single function "quint8 endpointAddress(quint8 endpoint)", two functions that will meet the objective in a better way will be implemented:

• quint8 endpointInAddr(int &errcnt, QString &errstr)
• quint8 endpointOutAddr(int &errcnt, QString &errstr)

These functions solve two issues:

• The user doesn't have to know how many endpoints there are and their numbers.
• There is only one endpoint IN and one endpoint OUT, and there is no need to specify which is which - in fact, these functions will solve that as well, because it is easy to infer the number of an endpoint by knowing the address.

The main objectives are met. However, before the release, there is the need to study the possibility to implement other functions, namely spiRead() and spiWrite(), for the sake of completeness.