auxiliary_device_create(9)

💖 auxiliary_device_create — like, the whole vibe 💖

okay so real talk, this is a page from the Kernel API Manual (section 9, kernel-API girlies rise 🙌) and it's all about auxiliary_device_create. yes bestie, we're doing kernel internals today and we're gonna slay it 🎀

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✨ NAME ✨

auxiliary_device_create — literally just: create a device on the auxiliary bus. that's the whole assignment 💅

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🦋 SYNOPSIS 🦋

struct auxiliary_device * auxiliary_device_create (struct device *dev ,
       const char *modname , const char *devname , void *platform_data , int id
);

ngl she's a long one, but she's worth it 🫶

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🌸 ARGUMENTS 🌸

• dev — the parent device 👑 like, whose child is this? that one.
• modname — the module name, and it's the one used to create the auxiliary driver name. so it's doing double duty, iconic.
• devname — the auxiliary bus device name 🏷️
• platform_data — the auxiliary bus device platform data, aka the little care package it carries around 🎁
• id — the auxiliary bus device id 🔢

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⭐ DESCRIPTION ⭐

so this is the helper that creates an auxiliary bus device 💖 and here's the cute part — the device it creates matches driver modname.devname on the auxiliary bus. that's it, that's the matchmaking, no cap 🧚

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🌈 SEE ALSO 🌈

go read these next, i'm obsessed with all of them:

• Kernel file ./drivers/base/auxiliary.c — plus everything in it: PURPOSE(9), USAGE(9), EXAMPLE(9)
• auxiliary_device_init(9)
• __auxiliary_device_add(9)
• __auxiliary_driver_register(9)
• auxiliary_driver_unregister(9)
• auxiliary_device_destroy(9)
• __devm_auxiliary_device_create(9)
• dev_is_auxiliary(9)

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💀 friendly reminder that auxiliary_device_destroy(9) exists too — you can't just create forever, bestie. balance. 🌸

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k bye, this page came from ./drivers/base in October 2026 and it lives in the auxiliary_device_create(9) manual slot 🩷 mwah, go build something iconic ✨💜