--- ./rockbox-orig/firmware/target/hosted/android/app/button-target.h	2011-01-21 05:46:49.000000000 -0600
+++ ./rockbox/firmware/target/hosted/android/app/button-target.h	2011-01-21 09:33:35.000000000 -0600
@@ -41,6 +41,9 @@
 #define BUTTON_DPAD_DOWN   0x00000020
 #define BUTTON_DPAD_CENTER 0x00000040
 
+/*not sure about this  had to add it for rockboy to compile seemed to make sense to map it to dpad center*/
+#define BUTTON_MAIN        0x00000040
+
 /* Compatibility hacks for flipping. Needs a somewhat better fix. */
 #define BUTTON_LEFT  BUTTON_DPAD_LEFT
 #define BUTTON_RIGHT BUTTON_DPAD_RIGHT