hi: 2012/2/13 LI LEI <leimli.hit@gmail.com>:
Hello, everyone,
I am a beginner to learn about the linux kernel. I met the following problem today:
I created a C file called "drv_event.c", and put it into the location "/lib", since I want to link it to the library of the kernel, i.e., lib.a. I also put the header file "drv_event.h" into the directory "/include/linux". I recompile the directory "/lib", and my own object "drv_event.o" was successfully linked into the lib.a.
However, I called one of the functions defined in the "drv_event.c" in my driver, and I compiled this driver, at the link time, I got the warning which shows that the function called is undefined. Would you please show us the warn message? does your driver made in module format or build-in?
It seems although I do recompile the lib.a successfully, but I did not put the new one into the right place. I tried "make install lib" and also "make install" in the kernel source. However, I still got the same warning at the link time.
So does someone can help me to get rid of this problem?
Thanks so much.
Best,
Li
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