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Kernel headers

Link to this post 07 Apr 10

Hi,

Can some one please explain what are kernel headers. I found this(kernel headers) in the below lines.

A more common problem is that some Linux distros distribute incomplete kernel headers. You'll need to
compile your code using various header files from the Linux kernel. Murphy's Law states that the headers that
are missing are exactly the ones that you'll need for your module work.

Thanks in advance.

Link to this post 16 Apr 10

The kernel headers are installed when you install the dev components of the kernel. They are necessary in order to build loadable kernel modules, or other drivers, but are not required to build normal software. If you are not building kernel code, you don't need to worry about it. If you are, then you should also install the entire kernel code as it is necessary for building kernel modules on current kernels.

So, tell us what you are trying to do.

Link to this post 08 Jun 10

Header files define structures and constants that are needed to build kernel modules (as well as some other software), as well as recompilation of the Linux kernel itself. There are most likely packages for whatever distribution you are using that will contain the kernel source and headers. apt/zypper/yum search for linux-dev or linux-headers or linux-source.

Link to this post 12 Jun 10

Kumar, these are the C header files that define portions of the API exposed to developers by the Kernel.

I suspect, based on your question that you're not terribly familiar with C programming. That may be a good place to start. Once you understand what a header file is / does, you will more clearly understand what the kernel headers are, and why one might need them.

Link to this post 20 May 11

"A more common problem is that some Linux distros distribute incomplete kernel headers"

a strong Negative

"Murphy's Law states that the headers that
are missing are exactly the ones that you'll need for your module work."

I don't believe in Murphy's law. If you are correct, the things won't go wrong. And I dont think so, Murthy particularly told about "headers" .. His thing is generic. My thought is, the people use this to escape from their mistakes

Link to this post 21 May 11

Wow, an 11 month old thread revived ... is someone trying to set a record?

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