add_aeb(9)

💅 add_aeb(9) — the Kernel API Manual, bestie edition

okay so this is a page from the Kernel API Manual, and today's main character is add_aeb — it makes a brand-new attach erase block and yeets it onto a list you pick. periodt. 🎀

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✨ NAME ✨

add_aeb — create an attach erase block and add it to a list you already have. iconic behaviour, no notes. 💖

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🌸 SYNOPSIS 🌸

int add_aeb (struct ubi_attach_info *ai , struct list_head *list , int
pnum , int ec , int scrub );

that's the whole signature, copy-paste friendly, don't touch the spacing bestie it's literally verbatim 🫶

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🦋 ARGUMENTS 🦋

• ai — the UBI attach info object. it's giving "the big context vibes", everything hangs off this.
• list — the target list. this is where your new attach erase block is gonna live. 🏡
• pnum — PEB number of the new attach erase block. yes, pnum = PEB number, we love an abbreviation.
• ec — the erease counter of the new LEB. (spelled exactly like that in the original, and honestly? slay, keep it.) ✨
• scrub — scrub this PEB after attaching. set it and the PEB gets scrubbed once it's attached. 🧼

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🔥 DESCRIPTION 🔥

Returns 0 on success. Anything < 0 means an internal error — so if you see a negative number come back, that's a 💀 moment, not a vibe. 🌈

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👑 SEE ALSO 👑

the whole friend group, all from the kernel file ./drivers/mtd/ubi/fastmap.c:

init_seen(9), free_seen(9), set_seen(9), self_check_seen(9), ubi_calc_fm_size(9), new_fm_vbuf(9), add_vol(9), assign_aeb_to_av(9), update_vol(9), process_pool_aeb(9), unmap_peb(9), scan_pool(9), count_fastmap_pebs(9), ubi_attach_fastmap(9), find_fm_anchor(9), ubi_scan_fastmap(9), ubi_write_fastmap(9), invalidate_fastmap(9), return_fm_pebs(9), ubi_update_fastmap(9)

go read them, iykyk 📚💅

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ngl this one's short but she ate — everything you need, nothing you don't. 🍓

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so yeah, that's the page, mwah 💜 — it lives in ./drivers/mtd/ubi, the source/version line says October 2026, and the footer still calls it add_aeb(9) like the legend it is. 🧚⭐