validate_ec_hdr(9)

💅 validate_ec_hdr — a Kernel API Manual moment (section 9, bestie)

okay so this is a page from the Kernel API Manual, and we're talking about validate_ec_hdr — literally the vibe-check function for erase counter headers. yes queen, someone has to do it 💖

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✨ NAME ✨

validate_ec_hdr — validate an erase counter header.

like, it checks the header. that's the whole job. no cap.

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🌸 SYNOPSIS 🌸

int validate_ec_hdr (const struct ubi_device *ubi , const struct
ubi_ec_hdr *ec_hdr );

it returns an int, takes a const struct ubi_device * and a const struct ubi_ec_hdr *, and honestly? she's booked and busy 🎀

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🦋 ARGUMENTS 🦋

• ubi — the UBI device description object. it's the context, the scenery, the main character's world-building 🌈
• ec_hdr — the erase counter header to check. this is the actual thing getting the vibe check, bestie 👑

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🔥 DESCRIPTION 🔥

so here's the tea: this function returns zero if the erase counter header is OK, and 1 if not.

that's it. zero = slay, one = not slay. the math is mathed 💀

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👑 SEE ALSO 👑

okay this section ate and left no crumbs — the whole squad is here, all from the kernel file ./drivers/mtd/ubi/io.c:

• ubi_io_read(9)
• ubi_io_write(9)
• do_sync_erase(9)
• torture_peb(9)
• nor_erase_prepare(9)
• ubi_io_sync_erase(9)
• ubi_io_is_bad(9)
• ubi_io_mark_bad(9)
• ubi_io_read_ec_hdr(9)
• ubi_io_write_ec_hdr(9)
• validate_vid_hdr(9)
• ubi_io_read_vid_hdr(9)
• ubi_io_write_vid_hdr(9)
• self_check_not_bad(9)
• self_check_ec_hdr(9)
• self_check_peb_ec_hdr(9)
• self_check_vid_hdr(9)
• self_check_peb_vid_hdr(9)
• self_check_write(9)
• ubi_self_check_all_ff(9)

like, the way she has a whole entourage 😭🫶 go read them, iykyk.

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💡 friendly reminder from your girl: validate_ec_hdr gives you zero when the erase counter header is OK and 1 when it's not — that's the only answer this function is giving you, no extra commentary, no notes 🙈

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and that's the page!! brought to you by ./drivers/mtd/ubi, dated October 2026 — periodt, see you in the next manpage bestie 💜🎀✨