Hi, Is that true that every time I do EXPORT_SYMBOL(my_symbol), I should check that `my_symbol' is not already defined? There are so many drivers in the kernel. How do developers make sure that their symbols are unique? Regards, Wenhua -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ