self_check_vid_hdr(9)

✨ self_check_vid_hdr(9) ✨

okay bestie, welcome to the Kernel API Manual 🎀 — today's main character is self_check_vid_hdr(9), and honestly? she's a vibe check for your volume identifier headers. 💅

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🌸 NAME 🌸

self_check_vid_hdr — check that a volume identifier header is all right. that's it. that's the job. iconic, lowkey essential. ✨

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🦋 SYNOPSIS 🦋

int self_check_vid_hdr (const struct ubi_device *ubi , int pnum , const
struct ubi_vid_hdr *vid_hdr );

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💖 ARGUMENTS 💖

• ubi — the UBI device description object, aka the whole vibe of the device you're checking against 🫶
• pnum — the physical eraseblock number that this volume identifier header belongs to, like its little home address 🏠
• vid_hdr — the actual volume identifier header being checked, the star of the show 👑

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🌈 DESCRIPTION 🌈

so here's the tea: this function returns zero if the volume identifier header is all right ✅, and -EINVAL if it's not 💀. that's literally the whole plot. no cap.

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⭐ SEE ALSO ⭐

the whole friend group, fr fr — shoutout to the kernel file ./drivers/mtd/ubi/io.c for hosting all of this 💜:

• 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)
• validate_ec_hdr(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_peb_vid_hdr(9)
• self_check_write(9)
• ubi_self_check_all_ff(9)

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ok that's the page!! mwah 💋 this one comes to you from ./drivers/mtd/ubi, dated October 2026 — go read the source bestie, it ate 🍓✨