device_release_driver(9)

💖 device_release_driver 💖

okay so bestie, welcome to the actual manual for device_release_driver from the Kernel API Manual ✨ this one's giving "unbind core energy" and we're gonna break it down together, no cap 🫶

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🎀 NAME 🎀

device_release_driver — manually detach a device from its driver, like literally you're doing it by hand 💅

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🌸 SYNOPSIS 🌸

void device_release_driver (struct device *dev );

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🦋 ARGUMENTS 🦋

• dev — the device. that's it. that's the whole vibe. it's a struct device * and it's the one getting released 👑

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✨ DESCRIPTION ✨

So what this does: it manually detaches the device from its driver. you're the main character here, you're doing the unbinding yourself, iconic behavior 💅

🚨 important caveat bestie: when you call this for a USB interface, the dev->parent lock must be held. not optional, fr fr.

And like, if you are gonna call this function while holding the dev->parent lock, you gotta make sure of one of two things in advance:

• the device's consumers are unbound already, OR
• their locks can actually be acquired under the dev->parent lock 😭

basically think ahead so you don't deadlock yourself, lowkey a vibe check for your locking 🔥

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👑 SEE ALSO 👑

• kernel file ./drivers/base/dd.c 🔍
• driver_deferred_probe_trigger(9)
• device_block_probing(9)
• device_unblock_probing(9)
• device_set_deferred_probe_reason(9)
• driver_deferred_probe_check_state(9)
• deferred_probe_initcall(9)
• device_is_bound(9)
• device_bind_driver(9)
• driver_probe_done(9)
• wait_for_device_probe(9)
• driver_probe_device(9)
• device_attach(9)
• device_driver_attach(9)
• driver_attach(9)
• device_driver_detach(9)
• driver_detach(9)

like, go read those too, they're the whole friend group of probing/detaching functions and they all slay in their own way 🌈

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and that's the page bestie! this gem lives in ./drivers/base, dated October 2026, and it's literally the device_release_driver(9) entry in the Kernel API Manual 💜 go forth and detach responsibly, mwah 💋