Re: loadable driver requires to call some BSP functions | |
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Hello! boku schrieb:
I'd like to write a loadable module which can utilize some BSP functions. How should I do so that the module can call those BSP functions it needs. I use to include some *.h for BSP function declarations in the module, but the compiler appears some warnings such as warning: implicit declaration of function 'xxxx' while i compile the module.
It is not sufficient to declare them in header files; the symbols have also to be exported from the kernel with EXPORT_SYMBOL(my_symbol_name) resp. EXPORT_SYMBOL_GPL(my_symbol_name) in the C source file. With best regards Andreas Schweigstill -- Dipl.-Phys. Andreas Schweigstill Schweigstill IT | Embedded Systems Schauenburgerstraße 116, D-24118 Kiel, Germany Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436 Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/ ------------------------------------------------------------------- List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm FAQ: http://www.arm.linux.org.uk/mailinglists/faq.php Etiquette: http://www.arm.linux.org.uk/mailinglists/etiquette.php
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