Modules Available Outside the Kernel Sources
Not all the modules that are considered part of a standard Linux system are included with the kernel source code. Some items are shipped external to the kernel sources but are included with almost every Linux distribution that is in existence today. Sometimes, updates (or new drivers) are available between kernel version releases in separate packages.
Under normal circumstances, there is no real reason to download, compile, and install an updated version of any of these packages. Occasionally, however, the need to do so arises. For PCMCIA hardware, occasionally a new card is supported only in a newer version of the pcmcia-cs package, so an upgrade is understandable.
It is always recommended that the ...