Added usb video example

examples/usb-video/arm7/source/ExitMode.h

@@ -0,0 +1,10 @@
+#pragma once
+
+/// @brief Enum representing the exit mode of launcher.
+enum class ExitMode
+{
+    /// @brief Reset the system (DSi mode only).
+    Reset,
+    /// @brief Power off the system.
+    PowerOff
+};