nd_uuid_store(9)

💅 nd_uuid_store(9) — Kernel API Manual 💅

okay so bestie, this is the Kernel API Manual page for the common implementation that handles writing uuid sysfs attributes. lowkey iconic kernel business ✨

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🌸 NAME 🌸

nd_uuid_store — common implementation for writing uuid sysfs attributes 🫶

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✨ SYNOPSIS ✨

int nd_uuid_store (struct device *dev , uuid_t **uuid_out , const char *buf , size_t len );

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🎀 ARGUMENTS 🎀

• dev — container device for the uuid property 💖
• uuid_out — uuid buffer to replace ✨
• buf — raw sysfs buffer to parse 🦋
• len — -- undescribed -- 💀 yes, that is literally what the page says

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💫 DESCRIPTION 💫

Enforce that uuids can only be changed while the device is disabled (driver detached) 🔒

LOCKING: expects device_lock is held on entry — fr fr, don’t forget this part 👑

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/nvdimm/core.c
• devm_nvdimm_memremap(9)

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xoxo, your fave kernel bestie 💖 — source path: ./drivers/nvdimm · version date: October 2026 · page: nd_uuid_store(9)