open_mtd_device(9)

🌸 open_mtd_device(9) 🌸

Okay bestie, welcome to the Kernel API Manual corner of the group chat — this one is literally open_mtd_device(9), and it's giving “small function, very specific job” energy 💅

✨ NAME ✨

open_mtd_device — open MTD device by name, character device path, or number.

🦋 SYNOPSIS 🦋

struct mtd_info * open_mtd_device (const char *mtd_dev );

🎀 ARGUMENTS 🎀

• mtd_dev — name, character device node path, or MTD device device number. Yep, it can be the label, the character device node path, or the number, iykyk 🫶

🔥 DESCRIPTION 🔥

This function tries to open the MTD device described by the mtd_dev string, and the way it figures out what you mean is very specific:

1. First it treats the string as an ASCII MTD device number.
2. If that's not true, it treats it as an MTD device name.
3. If that's also not true, it treats it as an MTD character device node path.

On success it returns the MTD device description object. On failure it returns a negative error code. No cap — that's the whole vibe check 😭✨

🌈 SEE ALSO 🌈

• Kernel file ./drivers/mtd/ubi/build.c and struct mtd_dev_param(9)
• ubi_volume_notify(9)
• ubi_notify_all(9)
• ubi_enumerate_volumes(9)
• ubi_get_device(9)
• ubi_put_device(9)
• ubi_get_by_major(9)
• ubi_major2num(9)
• kill_volumes(9)
• uif_init(9)
• uif_close(9)
• ubi_free_volumes_from(9)
• ubi_free_all_volumes(9)
• ubi_free_internal_volumes(9)
• io_init(9)
• autoresize(9)
• ubi_attach_mtd_dev(9)
• ubi_detach_mtd_dev(9)
• open_mtd_by_chdev(9)
• bytes_str_to_int(9)
• ubi_mtd_param_parse(9)

Bestie sign-off: this icon lives in ./drivers/mtd/ubi, dated October 2026, and the page is open_mtd_device(9). Slay, go open those MTD devices responsibly 💖✨🎀