nvmem_unregister_notifier(9)

✨ nvmem_unregister_notifier(9) ✨

okay so bestie, this is a page from the Kernel API Manual (section 9, the kernel-API girlies) and honestly it's a short one but it's lowkey important so let's get into it 💅

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🌸 NAME 🌸

nvmem_unregister_notifier — unregister a notifier block for nvmem events.

like, you know how you signed up to get pinged about nvmem events? yeah. this is the "actually nvm, take me off the list" function 🫶

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✨ SYNOPSIS ✨

int nvmem_unregister_notifier (struct notifier_block *nb );

that's the whole vibe check right there 😌

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🎀 ARGUMENTS 🎀

• nb — the notifier block to be unregistered. the exact one you're yeeting off the notification list 💫

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🔥 RETURN 🔥

• 0 on success — slay, it worked 💖
• negative error number on failure — it's giving "something went wrong" 😭

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🦋 SEE ALSO 🦋

Kernel file ./drivers/nvmem/core.c — that's where the magic lives, iykyk 👑

and the whole nvmem friend group, literally all of them:

• nvmem_add_one_cell(9)
• nvmem_add_cells(9)
• nvmem_register_notifier(9)
• nvmem_register(9)
• nvmem_unregister(9)
• devm_nvmem_register(9)
• of_nvmem_device_get(9)
• nvmem_device_get(9)
• nvmem_device_find(9)
• devm_nvmem_device_put(9)
• nvmem_device_put(9)
• devm_nvmem_device_get(9)
• of_nvmem_cell_get(9)
• nvmem_cell_get(9)
• devm_nvmem_cell_get(9)
• devm_nvmem_cell_put(9)
• nvmem_cell_put(9)
• nvmem_cell_read(9)
• nvmem_cell_write(9)
• nvmem_cell_read_u8(9)
• nvmem_cell_read_u16(9)
• nvmem_cell_read_u32(9)
• nvmem_cell_read_u64(9)
• nvmem_cell_read_variable_le_u32(9)
• nvmem_cell_read_variable_le_u64(9)
• nvmem_device_cell_read(9)
• nvmem_device_cell_write(9)
• nvmem_device_read(9)
• nvmem_device_write(9)
• nvmem_add_cell_lookups(9)
• nvmem_del_cell_lookups(9)
• nvmem_dev_name(9)
• nvmem_dev_size(9)

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ngl bestie, remember: 0 means success, negative means nope. don't let a negative number gaslight you into thinking it's fine 💀

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and that's the whole page! sign-off time 🎀 the source lives in the ./drivers/nvmem directory, dated October 2026 — like, future girl energy fr fr ⭐ bye bestie, go unregister those notifiers responsibly 💜