ubi_more_update_data(9)

✨ NAME ✨

okay so welcome to the Kernel API Manual, bestie 💖 — this page is for ubi_more_update_data, and its whole thing is write more update data. periodt.

🌸 SYNOPSIS 🌸

int ubi_more_update_data (struct ubi_device *ubi , struct ubi_volume
*vol , const void __user *buf , int count );

🎀 ARGUMENTS 🎀

• ubi — UBI device description object. the main device descriptor, iconic.
• vol — volume description object. the volume in question, no cap.
• buf — write data (user-space memory buffer). yes bestie, user-space memory buffer, keep it straight.
• count — how much bytes to write. literally the byte count, exactly as written.

🦋 DESCRIPTION 🦋

okay so this function writes more data to the volume which is being updated — it's giving "volume update, but make it incremental" ✨. It may be called an arbitrary number of times until all the update data arriveis.

bestie note: arriveis is literally the spelling from the original — I'm preserving it, don't come for me 😭

Return vibe check, fr fr: this function returns 0 in case of success, the number of bytes written during the last call if the whole volume update has been successfully finished, and a negative error code in case of failure. slay 💅

🔥 SEE ALSO 🔥

• Kernel file ./drivers/mtd/ubi/upd.c — the source file, go read it, iykyk
• set_update_marker(9)
• clear_update_marker(9)
• ubi_start_update(9)
• ubi_start_leb_change(9)
• write_leb(9)
• ubi_more_leb_change_data(9)

okay that's the whole page, bestie 🫶 — source/version: ./drivers/mtd/ubi, date: October 2026, and the page itself is ubi_more_update_data(9). mwah 💋✨