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@@ -100,15 +100,16 @@ The following people have contributed corrections or good suggestions:
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\subsection{What Is A Kernel Module?}
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\label{sec:kernelmod}
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-So, you want to write a kernel module.
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-You know C, you have written a few normal programs to run as processes, and now you want to get to where the real action is, to where a single wild pointer can wipe out your file system and a core dump means a reboot.
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-
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-What exactly is a kernel module?
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-Modules are pieces of code that can be loaded and unloaded into the kernel upon demand.
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-They extend the functionality of the kernel without the need to reboot the system.
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-For example, one type of module is the device driver, which allows the kernel to access hardware connected to the system.
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-Without modules, we would have to build monolithic kernels and add new functionality directly into the kernel image.
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-Besides having larger kernels, this has the disadvantage of requiring us to rebuild and reboot the kernel every time we want new functionality.
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+Interest in the development of kernel modules involves a background in the C programming language and a record of creating conventional programs designed for process execution.
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+This endeavor delves into a realm where an unchecked pointer, if left unattended,
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+could potentially cause the complete erasure of an entire file system,
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+leading to an event that prompts a complete system reboot.
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+
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+Precisely defined, a kernel module refers to a segment of code that possesses the ability to be dynamically loaded and unloaded within the kernel according to necessity.
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+Such modules elevate kernel capabilities without the imposition of a system reboot requirement.
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+A notable instance is observed in the device driver module, which serves to facilitate the interaction of the kernel with the hardware components attached to the system.
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+In the absence of modules, the prevailing approach leans toward monolithic kernels, necessitating the direct integration of novel functionalities into the kernel image.
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+This approach not only contributes to the generation of larger kernels but also mandates the undertaking of kernel rebuilding and subsequent system rebooting whenever a desired addition of functionality arises.
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\subsection{Kernel module package}
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\label{sec:packages}
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Jim Huang