STRUCT UBI_VOLUME_DESC(9)

💖 struct ubi_volume_desc(9) 💖

okay bestie, welcome to the Kernel API Manual — yes we're literally in the kernel now, this is our main character era ✨. Today's icon is struct ubi_volume_desc, and honestly? It's the little descriptor you get back when a UBI volume gets opened. That's it, that's the whole vibe. 🎀

🌸 SYNOPSIS 🌸

like, here's the shape of it, no cap:

struct ubi_volume_desc {
    struct ubi_volume *vol;
    int mode;
 };

🦋 Members 🦋

• vol — this is the reference to the corresponding volume description object. lowkey the whole point of the struct, she's the main character here 👑
• mode — the open mode, and bestie there are exactly four options, memorise them: UBI_READONLY, UBI_READWRITE, UBI_EXCLUSIVE, or UBI_METAONLY 💅

✨ SEE ALSO ✨

the whole friend group, fr fr — first up, the kernel file ./drivers/mtd/ubi/ubi.h, then: struct ubi_vid_io_buf(9), struct ubi_wl_entry(9), struct ubi_ltree_entry(9), struct ubi_rename_entry(9), struct ubi_fastmap_layout(9), struct ubi_fm_pool(9), struct ubi_eba_leb_desc(9), struct ubi_volume(9), struct ubi_debug_info(9), struct ubi_device(9), struct ubi_ainf_peb(9), struct ubi_ainf_volume(9), struct ubi_attach_info(9), struct ubi_work(9), ubi_init_vid_buf(9), ubi_free_vid_buf(9), ubi_get_vid_hdr(9), ubi_ro_mode(9), vol_id2idx(9), idx2vol_id(9), ubi_is_fm_vol(9), ubi_find_fm_block(9) 🌈

go read them, bestie, they're all in the same friend group and they ate 💀🔥

mwah 💋 that's the page — sourced straight from ./drivers/mtd/ubi, dated October 2026, and that's struct ubi_volume_desc(9) signing off 🫶💜