On Tue, Dec 02, 2003 at 07:25:33PM +0000, Peter Smith wrote: > Hi, > > I have a working kernel module which I would like to > execute a Bash script under certain conditions. I`ve > spent hours and hours and hours looking for a simple > way to do this. Eventually I came across the commands > "exec_usermodehelper" and "call_usermodehelper". > However I cannot find any tutorials covering these > commands and the only source code I have is "kmod.c" > from the kernel (not detailed or simple enough for a > newbie like me). Could someone please provide a > _simple_ worked example of how to use these commands > e.g. show me how to execute a Bash script from a > kernel module. Any help will be much appreciated. In 2.4 see: drivers/usb/usb.c::call_policy_interface() In 2.6 see: lib/kobject.c::kset_hotplug() Hope this helps. greg k-h -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/