nvmem_cell_read_u64(9)

💅 nvmem_cell_read_u64(9) — from the Kernel API Manual

okay so bestie, welcome to nvmem_cell_read_u64(9) ✨ this one lives in the Kernel API Manual and honestly she's a whole vibe — a tiny little function that just wants to hand you a number. Let's get into it 🎀

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✨ NAME ✨

nvmem_cell_read_u64 — read a cell value as a u64 💖

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🦋 SYNOPSIS 🦋

int nvmem_cell_read_u64 (struct device *dev , const char *cell_id , u64 *val );

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🌸 ARGUMENTS 🌸

• dev — the device that requests the nvmem cell. like, who's asking for the tea 👀
• cell_id — the name of the nvmem cell you wanna read. name drop her fr fr
• val — pointer to the output value. this is where the answer lands, no cap 💅

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🌈 RETURN 🌈

0 on success, or a negative errno. that's it, that's the whole mood 😭

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👑 SEE ALSO 👑

all the sister functions, and yes we're listing every single one because nobody gets left behind 🫶

Kernel file ./drivers/nvmem/core.c:

nvmem_add_one_cell(9), nvmem_add_cells(9), nvmem_register_notifier(9), nvmem_unregister_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_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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and that's the whole page, bestie, go read some cells 💜

~~ sign-off szn ~~ this cutie pie came to you from ./drivers/nvmem, dated October 2026, and she answers to the name nvmem_cell_read_u64(9) 🎀✨ slay, bye! 💖