On Mon, Dec 6, 2010 at 2:25 AM, jhoni maux <jhoni.maux@xxxxxxxxx> wrote: > Good evening All,,.. > > > Could you mind telling me what's kernel module actually ??? > > I am very happy if you give me a good source of understanding of the kernel > module ?? > like chm, pdf files,,.. :D > > > thank's a lot > > > dedy In userspace, are you familiar with DLLs (windows) or .SOs (linux). A kernel module is the kernel equivalent of those. ie. Loaded in ram if and only if explicitly needed. For a distro like openSUSE / ubuntu / fedora, this is very important. By using a small core portion of the kernel and modules for all the potential kernel functions that are hardware dependent, they are able to build in a very wide variety of hardware support while at the same time keeping their ram requirements low. Put another way, assume you come up with a new piece of kernel functionality that cannot be compiled into a module. ie. It must be compiled in. Now assume you want to convince a distro to include it in their distribution. You have to convince them: 1) It is good and well supported code and will get future support 2) It is worth having in RAM for every one of their users. Both of those are big obstacles. But if you can build your functionality as a module, then the RAM argument goes away in that only the users that actually use your module pay a RAM hit. Greg -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
