module_driver(9)

💅 module_driver(9) — the kernel API manual, bestie edition 🎀

Okay so real talk: this one lives in the kernel API manual and it's a macro, capital-M Macro, and she is here to save you from typing the same boring init/exit boilerplate forever. ✨

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🌸 NAME 🌸

module_driver — the helper macro for drivers that don't do anything special in module init/exit. It eliminates a lot of boilerplate. Like, a lot. 🫶

Two things you absolutely cannot skip, bestie:

• Each module may only use this macro once. One and done. No double-dipping. 🙈
• Calling it replaces module_init() and module_exit(). Not "adds to" — replaces. So don't go calling those too, okay?

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✨ SYNOPSIS ✨

module_driver (__driver , __register , __unregister , ... );

That's the whole vibe. Four slots, one macro, zero drama. 💅

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🦋 ARGUMENTS 🦋

• __driver — the driver name. That's it, that's the whole description. Her name. 👑
• __register — the register function for this driver type. The "put it in the system" one. 🔥
• __unregister — the unregister function for this driver type. The "take it back out" one. 💀
• ... — additional arguments to be passed to __register and __unregister. Extra toppings, both ways. 🍓

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🌈 DESCRIPTION 🌈

Bestie, listen closely, this is the important part:

Use this macro to construct bus specific macros for registering drivers — and do not use it on its own. 🚨

It's giving "template for a template". She's the blueprint you build other macros out of, not something you slap directly into your driver. Respect the pipeline. ✨

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🧚 SEE ALSO 🧚

• Kernel file ./include/linux/device/driver.h
• enum probe_type(9)
• struct device_driver(9)
• driver_find_device_by_name(9)
• driver_find_device_by_of_node(9)
• driver_find_device_by_fwnode(9)
• driver_find_device_by_devt(9)
• driver_find_device_by_acpi_dev(9)
• builtin_driver(9)

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💖 Go read struct device_driver(9) next, iykyk. It's the main character of this whole friend group.

Okay that's the page!! Mwah 💋 — this one's from ./include/linux/device, dated October 2026, and honestly? She ate. Periodt. 🌟🎀💜