leb_read_sanity_check(9)

💅 leb_read_sanity_check(9) — from the Kernel API Manual, bestie 🎀

okay so picture this: it's kernel API manual o'clock, and we're looking at leb_read_sanity_check(9) — yes, that's the whole title, no notes ✨

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🌸 NAME 🌸

leb_read_sanity_check — the girl whose entire job is doing sanity checks on read requests. that's it. that's the gig. she checks. she does not read. she checks 💅

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✨ SYNOPSIS ✨

int leb_read_sanity_check (struct ubi_volume_desc *desc , int lnum , int
offset , int len );

literally the whole vibe check in one line, no cap 🦋

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🎀 ARGUMENTS 🎀

• desc — the volume descriptor 🫶 like, your little VIP pass to the volume
• lnum — the logical eraseblock number you're reading from, iykyk
• offset — where inside that logical eraseblock you're starting your read 👑
• len — how many bytes you wanna read, fr fr

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💖 DESCRIPTION 💖

so this function is the one that ubi_leb_read and ubi_leb_read_sg call to perform sanity checks. she's not the main character doing the actual reading — she's the backstage icon making sure everything's not a mess first. periodt 💅✨

ngl, she's the responsible friend of the group chat. someone has to be 🙈

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🦋 SEE ALSO 🦋

the kernel file itself lives at ./drivers/mtd/ubi/kapi.c — go look, she's iconic 💜

and here's the whole friend group, no one left out:

• ubi_do_get_device_info(9)
• ubi_get_device_info(9)
• ubi_do_get_volume_info(9)
• ubi_get_volume_info(9)
• ubi_open_volume(9)
• ubi_open_volume_nm(9)
• ubi_get_num_by_path(9)
• ubi_open_volume_path(9)
• ubi_close_volume(9)
• ubi_leb_read(9)
• ubi_leb_read_sg(9)
• ubi_leb_write(9)
• ubi_leb_erase(9)
• ubi_leb_unmap(9)
• ubi_leb_map(9)
• ubi_is_mapped(9)
• ubi_sync(9)
• ubi_register_volume_notifier(9)
• ubi_unregister_volume_notifier(9)

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mwah 💋 that's the page. sign-off time: this lil masterpiece comes from ./drivers/mtd/ubi, dated October 2026, and yes it's still called leb_read_sanity_check(9) — slay 🌈⭐🍓