getting sys_read kernel 2.6 symbol!

[Bruno <bruno.lopes@ic.unicamp.br>]

hello,

i am trying to bring the exported kernel symbol "sys_read" into my 
module, but
then i get a Unknown symbol in /var/log/messages.
i don't know if i am doing the right way, i tried like this
"extern asmlinkage ssize_t sys_read(unsigned int fd, char __user * buf, 
size_t count);"
and i also tried :
"extern void *sys_read;"
but both didn't work.
am i doing the right way, or is there any kernel 2.6 peculiarity in 
getting this symbol?

thanks

Bruno.

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