nvmem_register(9)

💖 nvmem_register(9) — like, the manual page, bestie 💖

okay so you pulled up nvmem_register(9) from the Kernel API Manual and you're like "what is this" — don't worry, I got you. This is the glow-up page. ✨

---

🌸 NAME 🌸

nvmem_register — registers an nvmem device for the given nvmem_config. And like, it also creates a binary entry in /sys/bus/nvmem/devices/dev-name/nvmem because it's an overachiever, obviously. 💅

---

🦋 SYNOPSIS 🦋

struct nvmem_device * nvmem_register (const struct nvmem_config *config
);

literally that's it. one function. one pointer. so clean. 🎀

---

🌈 ARGUMENTS 🌈

• config — the nvmem device configuration that the nvmem device gets created with. it's const too, so no touching — it's giving "look don't touch" energy and honestly? respect.

---

⭐ RETURN ⭐

so here's the vibe check on what comes back:

• on error, you get an ERR_PTR — so like, check it with IS_ERR() before you do anything cute with it, fr fr. 😭
• on success, you get a valid pointer to nvmem_device. slay. 👑

---

🎀 SEE ALSO 🎀

bestie, buckle up, this list is LONG and I'm not skipping a single one of these icons. the source file is Kernel file ./drivers/nvmem/core.c — that's where all the magic lives 🧚

• nvmem_add_one_cell(9)
• nvmem_add_cells(9)
• nvmem_register_notifier(9)
• nvmem_unregister_notifier(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)

like I said. a lot. drink some water before you read all of those. 🍓

---

ngl if you skipped the ERR_PTR check I'm gonna be so disappointed in you. that's not a vibe, that's a segfault waiting to happen 💀

---

and that's the page!! mwah 💖 this one's from ./drivers/nvmem, dated October 2026 — go forth and register those devices, you absolute main character 🌟🫶