DEVICE_SET_DRIVER(9)

💫 DEVICE_SET_DRIVER 💫

okay so bestie, welcome to DEVICE_SET_DRIVER(9) from the Kernel Developer's Manual — yes it's giving kernel-dev main character energy and honestly? iconic. let's get into it 🫶

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✨ NAME ✨

device_set_driver — the little function that goes "hey, this driver? it belongs to this device node in the tree." matching them up like it's prom 💅

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🌸 SYNOPSIS 🌸

#include <sys/param.h>
#include <sys/bus.h>

void
device_set_driver(device_t dev, driver_t *driver);

like, literally copy that in and you're set ✨

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🦋 DESCRIPTION 🦋

so what does it actually do? device_set_driver() associates a specific driver with a given device node in the tree. that's the whole vibe — you hand it a device_t dev and a driver_t *driver, and boom, they're linked 🔥

where you'll see this used fr fr: it's typically used inside DEVICE_IDENTIFY(9) functions, specifically to add devices to a bus that does not support doing so automatically — the ISA bus being the classic example here 👑

so basically: bus won't do the matching itself? not on your watch. you do it manually and slay 🎀

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👑 SEE ALSO 👑

• device(9) — go read this one too, iykyk

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💖 AUTHORS 💖

this manual page was written by M. Warner Losh — thank you for your service, king 🌈

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and that's the whole page, bestie! short, sweet, and 100% useful 💜

sign-off time 🎀 — this one's straight out of the Debian edition, dated April 21, 2003, and the page is literally named DEVICE_SET_DRIVER(9). periodt.