Re: [Ipw2100-devel] ieee802_11.h not available (was: IPW2200 0.3 available for download - Succes!)

[Sebastian L. <seb...@mm...>]

* Huub Reuver wrote:

> The problem is that linux/include is usually a snapshot from the
> kernelsources used when compiling the C-library. The reason the
> header-file misses is simply because it only recently became changed,
> after some clean-ups in the kernel.
[...]
> I'm not very much into development, but wasn't the rule that modules
> can depend on in-kernel headerfiles while userland programs depend
> on linux/include?

I can only tell about how Debian does this:
We have a kernel-headers package for each kernel version and arch specific 
revision and a linux-kernel-headers package which installs kernel headers 
corresponding to the installed glibc package.

The module must of course be built against a configured kernel-tree with the 
exact version for which the module will later be deployed. Instead of 
supplying complete configured kernel-trees for each kernel version and arch 
revision distros provide only the headers to build external kernel modules 
against. However these headers usually contain only the contents of 
linux/include whereas the abovementioned ieee802_11.h resides in 
linux/drivers/net/wireless.

So this is not a problem of unmatching kernel versions but of this file just 
not being packaged and thus is unavailable in most distributions. For the 
Debian packages I maintain I just copied the header file from a recent kernel 
source into my source package. I hope this is going to work as the protocol 
API should not change dramtically ;-)

Regards,
Sebastian

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