[EMAIL PROTECTED] wrote:
>
> EXPORT_SYMBOL is a macro can be found in a device driver frequently. who can give me
>a detailed explaination of the usage of this macro.
>
Hi all,
EXPORT_SYMPOL is usefull if you compile or insmod a module with the -x
or -X option (do not export module functions). In this case, only the
explicitily exported functions will be visible in kernel space.
In normal compilation or insmod without -x option, all your functions
will be visible in kernel space excepted the statics ones.
The visible functions in kernel space can be dynamically linked by
another module.
Chris.
--
Kumsta Christophe
Machinery Agrobotic Fruit
<[EMAIL PROTECTED]>
Real-Time System developper
RT-Linux/RTAI ( Use the Source Luck !)
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