std::runtime_error

[floatingloud]

Files that call std::runtime_error fail to build because they lack #include <stdexcept>
udev.cpp
udev_device.cpp

[danjperron]

Yes you need #include <stdexcept> on udev.cpp and udev_device.cpp but this is in your github https://github.com/zeroping/libudevpp!

I also fix your export problem. When you export a pwm you need to wait to have the pwm created. I just made a small 100ms delay and now it works fine. Maybe I should loop until it pop up on the folder.

So I forked both of your githubs and now my servos work fine with my fixes.
https://github.com/danjperron/sysfspwm and libudevppp

Thanks for your code.
Daniel