Linux Kernel Modules

linux kernel modules

Linux Kernel Modules

Linux Kernel Modules are pieces of code that can be dynamically loaded and unloaded into the Linux kernel at runtime, allowing for the addition of new functionality or device drivers without the need to recompile the entire kernel. These modules are essentially small, self-contained pieces of code that can be inserted into the kernel to extend its capabilities or support new hardware.

Kernel modules are a key feature of the Linux operating system, as they allow for a high degree of flexibility and customization. They can be used to add support for new hardware devices, implement new file systems, or provide additional system services. By allowing modules to be dynamically loaded and unloaded, Linux can remain lean and efficient, only loading the code that is needed at any given time.

One of the key advantages of using kernel modules is that they allow for the development of new features or drivers without requiring a full kernel recompile. This can greatly simplify the process of adding support for new hardware or experimenting with new functionality, as developers can simply write a new module and load it into the kernel without having to rebuild the entire system.

Kernel modules are typically distributed as separate files with a .ko extension, and can be loaded into the kernel using the insmod or modprobe commands. Once loaded, a module can interact with other parts of the kernel and the system as a whole, providing the desired functionality or support for new hardware.

In summary, Linux Kernel Modules are a powerful and flexible way to extend the capabilities of the Linux kernel, allowing for the addition of new features or device drivers without the need for a full kernel recompile. They play a crucial role in the customization and flexibility of the Linux operating system, enabling developers to easily add new functionality and support for hardware devices.
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