Hi Ravi, Just try out using EXPORT_SYMBOL_NOVERS(..) instead of EXPORT_SYMBOL(..). I am not sure if it will help you. This worked out for my code. I didn't do any change in the Makefile or anything except the above line. :) Just check out if it works. Hope this helps. Pooja. --- Ravi <kravi26@yahoo.com> wrote: > Hello, > > While working with the 2.4.10 kernel, I wanted to > export a function > that I added. I found that EXPORT_SYMBOL(..) alone > does not help if > CONFIG_MODVERSIONS is set. I also didn't find any > document that > explains how to make a kernel symbol available to > modules. Below is the > list of steps that I followed - after some trial > and error. Can > someone please verify this? > > > > HOWTO export a kernel symbol to modules > --------------------------------------- > Steps to make a symbol 'my_function' (defined in > my_obj.c) available to > kernel modules: > > 1. Include the following two files in the source > file (my_obj.c) : > > linux/module.h and linux/modsetver.h > > 2. Add the following line to the source file: > > EXPORT_SYMBOL(my_function); > > > 3. Add the object filename to the 'export-objs' > variable in the current > directory's Makefile. If the variable does not > exist, add it: > > export_objs := my_obj.o > > 3a. If the changes you are making are > enabled/disabled by a config > option, you can conditionally modify export-objs : > > #ifdef CONFIG_MY_OPTION > export-objs += my_obj.o > #endif > > > IMPORTANT: > Make sure that your file name does not clash with > any of the existing > files in include/linux/modules. For example, if a > file 'my_obj.ver' > already exists in include/linux/modules, you have to > rename your file > (or move only the EXPORT_SYMBOL and related parts to > a different file). > > --------------------------- > > > -Thanks, > Ravi. > > __________________________________________________ > Do You Yahoo!? > Send FREE Valentine eCards with Yahoo! Greetings! > http://greetings.yahoo.com > -- > Kernelnewbies: Help each other learn about the Linux > kernel. > Archive: > http://mail.nl.linux.org/kernelnewbies/ > IRC Channel: irc.openprojects.net / #kernelnewbies > Web Page: http://www.kernelnewbies.org/ > ________________________________________________________________________ Looking for a job? Visit Yahoo! India Careers Visit http://in.careers.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/
