Linux clock driver

libuavcan_drivers/linux/test/log_subscriber.cpp

@@ -3,12 +3,28 @@
  */
 
 #include <iostream>
+#include <cerrno>
 #include <uavcan/uavcan.hpp>
 #include <uavcan_linux/socketcan.hpp>
 #include <uavcan_linux/clock.hpp>
 
 int main()
 {
-    std::cout << "Hello owl." << std::endl;
+    double sec = 0;
+    std::cout << "Enter system time adjustment in seconds: " << std::endl;
+    std::cin >> sec;
+
+    uavcan_linux::SystemClockDriver clock;
+
+    try
+    {
+        clock.adjustUtc(uavcan::UtcDuration::fromUSec(sec * 1e6));
+    }
+    catch (const uavcan_linux::Exception& ex)
+    {
+        std::cout << ex.what() << std::endl;
+        std::cout << strerror(ex.getErrno()) << std::endl;
+    }
+
     return 0;
 }