rio_match_device(9)

rio_match_device(9) 🌸

welcome to the Kernel API Manual, bestie — this one is all about rio_match_device(9) and it's lowkey iconic 💅

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✨ NAME ✨

rio_match_device — tell if a RIO device has a matching RIO device id structure. That's the whole vibe 🫶

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🌸 SYNOPSIS 🌸

okay so here's the exact signature, no cap:

       const struct rio_device_id * rio_match_device (const struct
       rio_device_id *id , const struct rio_dev *rdev );

it returns a const struct rio_device_id *, and it takes id and rdev. periodt ✨

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🎀 ARGUMENTS 🎀

• id — the RIO device id structure to match against 🎯
• rdev — the RIO device structure to match against 🎯

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🦋 DESCRIPTION 🦋

okay so bestie, this function is used from driver probe and bus matching to check whether a RIO device matches a device id structure provided by a RIO driver. it's giving "do these two belong together?" energy 💖

it returns the matching struct rio_device_id or NULL if there is no match. so yeah — match found? you get the matching struct rio_device_id. no match? NULL, and that's that. no cap 😭

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🔥 SEE ALSO 🔥

Kernel file ./drivers/rapidio/rio-driver.c is right here, and the whole squad is:

• rio_dev_get(9)
• rio_dev_put(9)
• rio_device_probe(9)
• rio_device_remove(9)
• rio_register_driver(9)
• rio_unregister_driver(9)
• rio_match_bus(9)
• rio_bus_init(9)

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cute sign-off: source/version ./drivers/rapidio, date October 2026 — bye bestie, go match those devices 💜🦋