Module isn't compiling

sulacco · 01-17-2009, 02:50 PM

Hi, ppl. I'm trying to compile a driver which is
in /usr/src/linux/driver. I'm doing it like this:

HERE ADVICE FRO THE BOOK:
To compile a kernel driver as a module, toggle the corresponding menu choice button to <M> while configuring the kernel. Most of the device driver examples in this book are implemented as kernel modules. To build a module mymodule.ko from its source file mymodule.c, create a one-line Makefile and execute it as follows:

Code:

bash> cd /usr/src/linux/drivers/usb/class
bash> echo "obj-m += mymodule.ko" > Makefile
bash> make –C /usr/src/linux/drivers/usb/class/ M=`pwd` modules

but I get error like this:

Code:

make: Entering directory /usr/src/linux-2.6.28/drivers/usb/class
make: *** No rule to make target `modules`. Stop.

What's wrong? How compile a module from source code?

ta0kira · 01-18-2009, 12:18 PM

I think you need to -C to the top of the source tree; /usr/src/linux.
ta0kira

PS Why is your module in the source tree itself?

sulacco · 01-18-2009, 02:15 PM

Quote:

Originally Posted by ta0kira

I think you need to -C to the top of the source tree; /usr/src/linux.
ta0kira

PS Why is your module in the source tree itself?

Ok, I have copied directory with sources to /home/mydir
and compiled it there. With some shell script.

Drakeo · 01-18-2009, 03:12 PM

Quote:

Originally Posted by ta0kira

I think you need to -C to the top of the source tree; /usr/src/linux.
ta0kira

PS Why is your module in the source tree itself?

you may want to look at the serious change in the 2.6.28 before you compile and begin to use it. 2.6.28 has moved the headers.from /include/asm to /arch/x86/include/asm so after you build it just get ready to work on thing if you are going X86_64 then things can work out a little better.