I am trying to define a variable that needs to be manipulated by one c file in the kernel and read by another c file in a different directory. I have defined the variable in a header file that is #included in both c files. The problem is when I compile the kernel I get an error saying that the variable cannot be defined more than once. I added a preprocessor condition like this: #ifndef _NEW_HEADER_H #define _NEW_HEADER_H //define the variable #endif it was my assumption that the variable would only be defined once because of this macro but I am still having the same problems. How do I create header files that can be #included in multiple c files like the files in the source tree? thanks for you patience, -brahan -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ