+std::string Hub::get_axis_name(unsigned axis) const
+{
+ unsigned dev_index = axis>>12;
+ if(dev_index>=devices.size())
+ throw invalid_argument("Hub::get_axis_name");
+
+ const Device &dev = *devices[dev_index];
+ return dev.get_name()+": "+dev.get_axis_name(axis&0xFFF);
+}
+