To build a module, you will need to acquire your current kernel's header files. The corresponding package is called linux-headers-x.x.x-*. For example, on Debian-based systems like Ubuntu, it can be ...

Write a Makefile then make it, this will generate a lkm_example.ko, we will use it as a kernel module later on. obj-m += lkm_example.o all: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) ...

You typically can’t do direct port I/O, for example, or arbitrarily access memory. The kernel, ... 13 thoughts on “ Linux Fu: Kernel Modules Have Privileges ” jpa says: ...

Modules are stilluseful when testing a new driver. You don’t need to build a new kernelimage every time you find and fix a problem in your driver code. Justload it as a module and try it. Keep in mind ...

Although Linux does not (yet) support this binary format, the good news is that you can learn how to write kernel modules by implementing COM support for the Linux kernel.

Kernel modules and drivers are essential components of the GNU/Linux operating system, as they enable communication between the hardware and the software layers. However, sometimes you may need to ...

For example, you can turn your wireless driver into a module which allows you to update it without recompiling the kernel. As such, modules can be especially useful for users that want to have a fast ...

Learn how to use printk and kmod to debug a kernel module in GNU/Linux. Find out how to write printk statements, load and unload modules, pass parameters, and view messages.

Our example uses the 2.5.31 kernel release, which contains enough of the LSM interface for us to create a useful module. In our module, we want to prevent any programs with the group ID of 0 (root) ...

In this second excerpt, Abbott discusses kernel modules and device drivers. In Part 1 of this excerpt the author worked through an example of a simple kernel module. In this installment, Abbott ...