My simple kernel module wont compile

testlaster testlaster at gmail.com
Thu Sep 11 10:13:58 EDT 2014


Hi Gustavo

I tried your suggestions.

The first line didn't work because I seem to not have a build directory 
there.
And the second one did exactly the same as mine did.

On 9/11/2014 3:49 PM, Gustavo Bittencourt wrote:
> Maybe you should replace the KERNEL_DIR definition in MAKEFILE. My 
> suggestions:
>
> KERNEL_DIR:=/usr/src/linux-headers-$(shell uname -r)/build
> or
> KERNEL_DIR:=/lib/modules/$(shell uname -r)/build
>
> On Thu, Sep 11, 2014 at 8:12 AM, testlaster <testlaster at gmail.com 
> <mailto:testlaster at gmail.com>> wrote:
>
>     Hey Guys
>
>     All im trying to do here is learn about make files and how to link
>     linux header files stored in
>     /usr/src/linux-headers-3.13.0-35-generic to my program that im
>     writing.
>     So far ive been getting the simplest of Kernel Modules to compile
>     and load in Linux but nothing useful . The moment I delve deeper I
>     seem to get missing header file errors when using "make".
>     All I want to do is write from Kernel space into user space and
>     visa verse. I will be dumping allocated PCI memory blocks into files.
>     I will also have to edit registers of the PCI to be able to make
>     triggers go off by setting bits high etc.
>     But this is just an introduction to it all and im already having
>     trouble compiling.
>
>     Now im not 100% sure if its missing header files but the errors is
>     quite large.
>
>      This is my Pastebin of the C MODULE Code :
>
>     pastebin.com/lWPBR8DJ <http://pastebin.com/lWPBR8DJ>
>
>      And here it the PASTEBIN of my MAKEFILE and its errors:
>
>     pastebin.com/ffT1F26N <http://pastebin.com/ffT1F26N>
>
>     ALSO...Does anybody know of a good tutorial on how to write a PCI
>     driver in Kernel space using kernel modules...also how to send
>     data from and to the module from UserSpace?
>
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