How do I configure modprobe to find my module?
KernelKernel ModuleInsmodKernel Problem Overview
I'm trying to get a kernel module to load at boot.
If I run insmod /path/to/module.ko, it works fine. But this has to be repeated every time I reboot.
If I run modprobe /path/to/module.ko, it can't find the module.
I know modprobe uses a configuration file, but I can't get it to load the module even after adding /path/to/module.ko to /etc/modules.
What is the proper configuration?
Kernel Solutions
Solution 1 - Kernel
You can make a symbolic link of your module to the standard path, so depmod will see it and you'll be able load it as any other module.
sudo ln -s /path/to/module.ko /lib/modules/`uname -r`
sudo depmod -a
sudo modprobe module
If you add the module name to /etc/modules it will be loaded any time you boot.
Anyway I think that the proper configuration is to copy the module to the standard paths.
Solution 2 - Kernel
Follow following steps:
> 1. Copy hello.ko to /lib/modules/'uname-r'/misc/ > 2. Add misc/hello.ko entry in /lib/modules/'uname-r'/modules.dep > 3. sudo depmod > 4. sudo modprobe hello
modprobe will check modules.dep file for any dependency.
Solution 3 - Kernel
I think the key is to copy the module to the standard paths.
Once that is done, modprobe only accepts the module name, so leave off the path and ".ko" extension.