2008/5/24 Vadim Klishko <vadim at cirque.com>: > On Friday, May 23, 2008 4:00 PM, "Greg KH" wrote: > >> On Fri, May 23, 2008 at 02:32:46PM -0600, Vadim Klishko wrote: >>> Hello Everybody, >>> >>> Could anyone please tell me what functions I could call from a Linux kernel module to: >>> >>> 1) dynamically load a library, >> >> None. >> >>> 2) get the address of an exported function, >> >> None. >> >>> 3) unload the library? >> >> None. >> >> None of these things are things that you should do from within a kernel >> module. >> >>> Also, what are the functions that would allow me to read from and >>> write to a binary or text file from within a kernel module? >> >> None, this is not what a kernel module should ever be doing. >> >> Let's turn it around the other way, what are you trying to achieve that >> makes you think the above things are necessary to do? >> > By reading a file, I am trying to load a system-wide device configuration. Of course, it could be hard-coded into the module, but why not try having it > adjustable? What's wrong with module parameters? > > The driver I am writing is for touchpads. Some customers want their devices to have functionality different from a standard mouse. For example, they may > want to turn a touchpad into a keypad, where touching the surface in certain areas produces keystrokes. For those customers (OEM) who use a touchpad > module to create their own device, this pretty much amounts to having a customized driver. Instead of having to build a new driver, they could simply edit the > configuration file. How about letting behaviour be changed by writing values to files in sysfs (/sys) ? > Thank you for pointing me to kernelnewbies. I realize it's premature to argue before I have read their arguments against doing these things in the kernel, but > the first objection that crosses my mind is this: I can do it in Windows. Why not in Linux? Read these : http://kernelnewbies.org/FAQ/LibraryFunctionsInKernel http://kernelnewbies.org/FAQ/WhyWritingFilesFromKernelIsBad -- Jesper Juhl <jesper.juhl at gmail.com> Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html
