kunit_device_register(9)

💅 kunit_device_register(9) 💅

ok so welcome to the Kernel API Manual, bestie — today's main character is kunit_device_register, and honestly? she's a little icon. ✨

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🌸 NAME 🌸

kunit_device_register — literally just creates a struct device for you to use in KUnit tests 🎀

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🦋 SYNOPSIS 🦋

struct device * kunit_device_register (struct kunit *test , const char
*name );

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✨ ARGUMENTS ✨

• test — the test context object. yes, that one. the whole vibe check of your test lives here 🫶
• name — the name you wanna give the created device. pick something cute, it's yours 💖

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👑 DESCRIPTION 👑

okay so here's the tea: this bad boy creates a struct kunit_device (which, plot twist, is a struct device) with the name you passed in, plus a corresponding driver. matching set, no cap. 💅

the device and the driver both get cleaned up on test exit, or whenever kunit_device_unregister is called — so you don't have to stress about the mess, she handles it. 🧹✨

also see kunit_device_register_with_driver if you're feeling brave and wanna provide your own struct device_driver. main character energy only. 🔥

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⭐ RETURN ⭐

you get back a pointer to a struct device which will be cleaned up when the test exits 💜 — or, if the device could not be allocated or registered, an error pointer instead. so like… check it, bestie. 😭

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🌈 SEE ALSO 🌈

• Kernel file ./include/kunit/device.h
• kunit_driver_create(9)
• kunit_device_register_with_driver(9)
• kunit_device_unregister(9)

all linked, all iconic, go read them 🦋

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and that's the whole page! 🎀 big slay to ./include/kunit, dated October 2026 — mwah, periodt. 💖✨