Status codes was added to log

src/libusbdevice.cpp

@@ -12,7 +12,7 @@ LibUsbDevice::LibUsbDevice()
 {
     auto status = libusb_init(&m_context);
     if (status) {
-        std::cerr << "Error initializing context: " << libusb_strerror(status) << std::endl;
+        std::cerr << "Error initializing context: " << libusb_strerror(status) << " [" << status << "]" << std::endl;
     }
 }
 
@@ -51,7 +51,7 @@ bool LibUsbDevice::sendDataToDevice(const Data &data)
     auto status = libusb_control_transfer(m_device, requestType, request, 0, 0, package, data.size(), DefaultTimeout);
 
     if (status) {
-        std::cerr << "Sending data error: " << libusb_strerror(status) << std::endl;
+        std::cerr << "Sending data error: " << libusb_strerror(status) << " [" << status << "]" << std::endl;
         return false;
     }