gluebi_write(9)

💅 gluebi_write(9) — like, the write side of your emulated MTD device, bestie

Okay so this is from the Kernel API Manual (yes, the kernel manual, we're fancy now 💖) and it's all about gluebi_write — the function that handles writes on emulated MTD devices. Sit down, hydrate, let's go 🫶

---

✨ NAME ✨

gluebi_write — the write operation for emulated MTD devices. That's it, that's the whole vibe. 🦋

---

✨ SYNOPSIS ✨

int gluebi_write (struct mtd_info *mtd , loff_t to , size_t len , size_t
*retlen , const u_char *buf );

---

✨ ARGUMENTS ✨

• mtd — your MTD device description object. The main character of this whole situation 👑
• to — the absolute offset of where you wanna write. Not relative, absolute, periodt 💅
• len — how many bytes you're writing, bestie
• retlen — the count of written bytes gets returned right here. It's giving "output parameter" energy 🎀
• buf — the buffer holding the data you actually want written 🌸

---

✨ DESCRIPTION ✨

So here's the tea: this function returns zero when it slays (success 💖) and a negative error code when it doesn't (failure 😭). That's literally the whole contract. No cap.

Ngl, that's all the description we get — zero = good, negative = not good. Iconic in its minimalism, honestly.

---

✨ SEE ALSO ✨

Bestie, there's a whole friend group here — go say hi 🫶

• Kernel file ./drivers/mtd/ubi/gluebi.c
• struct gluebi_device(9)
• find_gluebi_nolock(9)
• gluebi_get_device(9)
• gluebi_put_device(9)
• gluebi_read(9)
• gluebi_erase(9)
• gluebi_create(9)
• gluebi_remove(9)
• gluebi_updated(9)
• gluebi_resized(9)
• gluebi_notify(9)

---

Okay that's the whole page, mwah 💋 This little gem lives over at ./drivers/mtd/ubi and it's dated October 2026 — yes, we're reading from the future, lowkey iconic ⭐ Go forth and gluebi_write responsibly, bestie! 🌈