self_check_ai(9)

💅 self_check_ai(9) — the vibe check for attaching info 🎀

okay bestie, so this one lives in the Kernel API Manual, section 9 (kernel routines, iykyk), and it's a little function called self_check_ai and honestly? it's giving "trust but verify" energy. ✨

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🌸 NAME 🌸

self_check_ai — check the attaching information.

Like, literally just that. It looks at the attaching info and goes "mmhm, mmhm, okay this is fine" or "nope 😭". No cap.

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🦋 SYNOPSIS 🦋

int self_check_ai (struct ubi_device *ubi , struct ubi_attach_info *ai
);

That's the whole thing, bestie. Two arguments, one int coming back atcha. 💜

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💖 ARGUMENTS 💖

• ubi — the UBI device description object. yeah, the actual device, described. main character energy.
• ai — the attaching information. this is the thing getting checked. it's literally in the name, we love a self-aware icon.

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🧚 DESCRIPTION 🧚

So here's the tea: this function returns zero if the attaching information is all right. Zero. Perfect. Flawless. Slay. 🌈

But if it's not all right — or if an error occurred — it hands you back a negative error code. That's your cue to go "oh 🫶" and deal with it.

fr fr, the return value is the whole personality here: 0 = we good, negative = we are NOT good. don't ignore the negative one, bestie, that's the plot twist. 💀

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⭐ SEE ALSO ⭐

okay so there's a whole friend group here, all from the kernel file ./drivers/mtd/ubi/attach.c. genuinely obsessed with how many of these there are. gather round:

• find_or_add_av(9)
• ubi_find_or_add_av(9)
• ubi_alloc_aeb(9)
• ubi_free_aeb(9)
• add_to_list(9)
• add_corrupted(9)
• add_fastmap(9)
• validate_vid_hdr(9)
• add_volume(9)
• ubi_compare_lebs(9)
• ubi_add_to_av(9)
• ubi_add_av(9)
• ubi_find_av(9)
• ubi_remove_av(9)
• early_erase_peb(9)
• ubi_early_get_peb(9)
• check_corruption(9)
• scan_peb(9)
• late_analysis(9)
• destroy_av(9)
• destroy_ai(9)
• scan_all(9)
• scan_fast(9)
• ubi_attach(9)

that's the whole squad, no one left behind. 👑

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🎀 little reminder: this page comes from ./drivers/mtd/ubi and it's dated October 2026, part of the Kernel API Manual. so when you cite it in your essay, you're welcome. 💅✨

anyway bestie, go forth and check that attaching information. you got this. 🦋💜🌸