Our objective in this chapter is to introduce the basics of Linux device drivers. We’ll begin with the concept of installable kernel modules. Then we’ll look at the basic device driver APIs in the ...

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This includes such things as whenever an inode is accessed, a module is loaded or a task is created. As of the 2.5.31 kernel, there were 88 different function pointers needed. The majority of these ...

When you program in the kernel, there is no operating system to step in and safely stop your code from running and tell you that you have a problem. The Linux kernel is pretty nice to its own code.

The kernel, however, including modules, has no such restriction. That can make debugging modules tricky because you can easily bring the system to its knees.

The Linux kernel is modular — composed of modules that work together but are largely independent of each other. New functionality can be added when a kernel module is loaded, but there are times ...

More and more Rust drivers are being added to the Linux kernel. While Rust code represents just 0.1% of the total codebase, that’s still 143 separate files across all facets of the kernel.

LKRG kernel modules are currently available for main Linux distros such as RHEL7, OpenVZ 7, Virtuozzo 7, and Ubuntu 16.04 to latest mainlines. Not a perfect solution ...

Resources Rubini, Alessandro, Jonathan Corbet, and Greg Kroah-Hartman, Linux Device Drivers, third Ed. , O’Reilly, 2005. On the one hand, this is a very readable and thorough treatment of kernel-level ...