ubi_start_leb_change(9)

💅 ubi_start_leb_change(9) — like, the kernel API manual, but make it make sense

okay so bestie, welcome to the ubi_start_leb_change(9) page from the Kernel API Manual — yes it's giving very "driver dev at 2am" energy, but honestly it's not that deep. sit down, hydrate, let's go 🫶

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✨ NAME ✨

ubi_start_leb_change — start atomic LEB change. that's it, that's the whole vibe. atomic is the main character word here, so don't sleep on it 💅

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🌸 SYNOPSIS 🌸

int ubi_start_leb_change (struct ubi_device *ubi , struct ubi_volume
*vol , const struct ubi_leb_change_req *req );

like, three args in, one int out. she's simple, she's iconic, she slays 🔥

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🎀 ARGUMENTS 🎀

• ubi — the UBI device description object. it's the device bestie, the whole situation 🦋
• vol — the volume description object. each volume gets one, and this is the one we're messing with 💜
• req — the operation request. the actual "here's what I want" packet, no cap 📨

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⭐ DESCRIPTION ⭐

so this function starts an atomic LEB change operation. it returns zero if everything's a slay and succeeds, and a negative error code if it fails — so like, check your return value, bestie, that's the vibe check 😭

fr fr, "returns zero on success and a negative error code on failure" is the entire description here. don't go making up drama that isn't in the source, iykyk 🙈

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🦋 SEE ALSO 🦋

all the related girlies live in the kernel file ./drivers/mtd/ubi/upd.c, and honestly the whole friend group is worth a look:

• set_update_marker(9)
• clear_update_marker(9)
• ubi_start_update(9)
• write_leb(9)
• ubi_more_update_data(9)
• ubi_more_leb_change_data(9)

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okay that's the page!! 💖 this lil drop came from ./drivers/mtd/ubi, dated October 2026 — mwah, go forth and change your LEBs atomically, you absolute icon 👑🌈