rio_register_driver(9)

💅 rio_register_driver — Kernel API Manual ✨

okay bestie, welcome to the Kernel API Manual entry for rio_register_driver(9) — like, this is the whole vibe, let's get into it 🎀

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🌸 NAME 🌸

rio_register_driver — hi yes hello, it registers a new RIO driver, that's the whole thing, slay 💖

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✨ SYNOPSIS ✨

int rio_register_driver (struct rio_driver *rdrv );

literally that's the entire signature, no notes, copy it exactly, periodt 🫶

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🦋 ARGUMENTS 🦋

• rdrv — the struct rio_driver you're registering. like, the driver struct itself. the main character of this function, honestly 👑

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💜 DESCRIPTION 💜

okay so the way this works is: rio_register_driver adds a struct rio_driver to the list of registered drivers. that's it, that's the job, no cap 💅

it returns a negative value on error, otherwise 0. so negative = bad vibes, 0 = we ate 🔥

and here's the lowkey important part: if no error occurred, the driver stays registered even if no device was claimed during registration. so like, no device said "yes bestie you're mine" during the registration moment? doesn't matter — the driver is still out there, still registered, still thriving. main character energy that doesn't need validation ✨

🩷 heads up: negative return = error. anything non-error and the driver is on the list, claimed device or not. keep that in mind, iykyk.

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👀 SEE ALSO 👀

the usual suspects, the whole friend group fr fr:

• Kernel file ./drivers/rapidio/rio-driver.c
• rio_match_device(9)
• rio_dev_get(9)
• rio_dev_put(9)
• rio_device_probe(9)
• rio_device_remove(9)
• rio_unregister_driver(9)
• rio_match_bus(9)
• rio_bus_init(9)

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🧚 sign-off 🧚

made it to the bottom, icon behavior honestly 🌈 — this one lives in ./drivers/rapidio (that's the source/version tag, bestie), dated October 2026, and it's filed under rio_register_driver(9). mwah, go register something 💖🎀🦋