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HI, I know it's been a long time since you did this lib but I'm trying to implement this protocol and I'm having issue with read_data in C++ side.

Can I ask you why you choose to set in_addr and out_addr ?
I through it's was already defined and we have to pick them with libusb.
Otherwise, how Android App can know where to send the data ?

Thank you

Hi,

I think gcc 4.8 has C++ feature, but it still have problem in your code.
Any idea?
thank you

g++ -o test_usb src/libtest.cpp src/openaccessory.cpp -std=c++11 -Wall
pkg-config --libs --cflags libusb-1.0
In file included from src/libtest.cpp:19:0:
src/openaccessory.hpp:53:73: error: ‘constexpr’ needed for in-class initialization of static data member ‘const std::array<unsigned int, 4ul> OpenAccessory::_pid’ of non-integral type [-fpermissive]
In file included from src/openaccessory.cpp:18:0:
src/openaccessory.hpp:53:73: error: ‘constexpr’ needed for in-class initialization of static data member ‘const std::array<unsigned int, 4ul> OpenAccessory::_pid’ of non-integral type [-fpermissive]
src/openaccessory.cpp:209:36: error: duplicate initialization of ‘OpenAccessory::_pid’
src/openaccessory.cpp:209:36: error: conflicting declaration ‘const uint32_t OpenAccessory::_pid []’
In file included from src/openaccessory.cpp:18:0:
src/openaccessory.hpp:53:73: error: ‘OpenAccessory::_pid’ has a previous declaration as ‘const std::array<unsigned int, 4ul> OpenAccessory::_pid’
src/openaccessory.cpp:209:36: error: declaration of ‘const std::array<unsigned int, 4ul> OpenAccessory::_pid’ outside of class is not definition [-fpermissive]
src/openaccessory.cpp:209:71: error: ‘constexpr’ needed for in-class initialization of static data member ‘const std::array<unsigned int, 4ul> OpenAccessory::_pid’ of non-integral type [-fpermissive]
make: *** [test] Error 1