rpmb_dev_register(9)

💅 NAME 💅

rpmb_dev_register — bestie, this is the one that registers an RPMB partition with the RPMB subsystem ✨

(oh and hi, you're in the Kernel API Manual, section 9, welcome 🫶)

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🎀 SYNOPSIS 🎀

struct rpmb_dev * rpmb_dev_register (struct device *dev , struct rpmb_descr *descr );

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🌸 ARGUMENTS 🌸

• dev — the storage device of the rpmb device, like that's its whole thing 💖
• descr — the RPMB device description, aka the lil info packet about the device 🎀

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🦋 DESCRIPTION 🦋

okay so the vibe here is: while you're registering the RPMB partition, you extract the device information you need while the resources you need are actually available. that's it, that's the whole deal ✨ lowkey iconic that it's this short ngl 💅

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⭐ RETURN ⭐

you get back a pointer to a struct rpmb_dev 🥳 — or an ERR_PTR if it failed 😭 (so yes, always check it, no cap, ERR_PTR is the "it did not slay" signal 💀)

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/misc/rpmb-core.c (the main character file fr fr 👑)
• rpmb_dev_get(9)
• rpmb_dev_put(9)
• rpmb_route_frames(9)
• rpmb_dev_find_device(9)
• rpmb_dev_unregister(9)

go read those too, iykyk — the whole little RPMB friend group lives in there 🧚

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and that's the page!! 💜 it's from ./drivers/misc, the October 2026 edition — mwah, go register something and slay 🍓✨