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Assigns a major number and file operations to a driver so user-space programs can interact with hardware through device files.
Distinct from Device Drivers: Distinct from Device Drivers: focuses on the registration of character devices with major numbers, not general driver implementation.
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The Linux Kernel Module Programming Guide is an educational resource that teaches how to write, compile, and manage loadable kernel modules for modern Linux kernels. It covers the complete lifecycle of kernel modules, from building and loading to unloading and debugging, with a focus on extending kernel functionality without recompiling the entire kernel. The guide provides comprehensive coverage of core kernel programming concepts including dynamic module loading, file-operation registration, interrupt handling, kernel-user data copying, concurrency control, and deferred task scheduling. It
Teaches how to register character devices with major numbers and file operations for user-space interaction.