Makefile compailation warning "implicit declaration of function"

[s13884]

Hay,

Whenever I tried "Make" command for build a module at that time I got warning

implicit declaration of function ‘register_chardev'

module is generated but I m not able to load the module into kernel and I got the errro like
"insmod: error inserting 'chardev.ko': -1 Unknown symbol in module"

so can anybody help me for this problem

Is that any mistek in my make file or in my source code.

-S

[glennzo]

You would probably benefit by pasting the error text into a google search. You'll get a lot of hits.

[s13884]

You would probably benefit by pasting the error text into a google search. You'll get a lot of hits.

Thanks for your assitence,
But I already tried google.

-S

[Franklin52]

Is that any mistek in my make file or in my source code.
-S

Probably, can you post the warnings, your code and make file within code brackets?
Do you have the proper header/source files installed on your system?

Regards

[vijay_kernel]

hi,

Please check ur function name its not "register_chardev".
It should be " register_chrdev" . dont mention "a" in chrdev.
check now , it should work.


Cheers!!
Vjiay.

" Have a gr8 weekend ".

[s13884]

hi,

Please check ur function name its not "register_chardev".
It should be " register_chrdev" . dont mention "a" in chrdev.
check now , it should work.


Cheers!!
Vjiay.

" Have a gr8 weekend ".

Thanks vijay...

Now it's working

Cheers
-S