Introducing support for ShuttlePRO v2

Hello,

I am working on a control surface to support the ShttlePRO v2 device [1] on 
Linux. The device is working well using the input event struct of linux/
inputs.h.

By now the handling of the events is hard coded and doing things that make 
sense to my work-flows. However I'd like to make it user configurable 
although I am not sure how to do it exactly (how to configure things that are 
not actions, for example).

But to begin with I have a question regarding the ControlProtocol API: What's 
the deal with void AbstractUI<RequestObject>::do_request(RequestObject*)? I 
had to implement it to make my class instantiatable, so I just copied the 
code from OSC::do_request() without actually knowing what it means. Can 
someone give me a hint, please?

You can take a glimpse on the code on 
https://github.com/Ardour/ardour/compare/master...johannes-mueller:shuttlepro

Any other hints welcome.

Thanks

Johannes

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[1]: http://www.contourdesign.com/UK/product/shuttlepro-v2/

-- 
https://github.com/johannes-mueller/