ubi_get_num_by_path(9)

📦 version 7.3.1, in nixpkgs unstable

✨ ubi_get_num_by_path ✨

okay so bestie, welcome to the kernel API manual — this one lives in section 9 of the Kernel API Manual</> and it's literally called ubi_get_num_by_path. she's smol, she's focused, she does exactly one (1) thing and honestly? iconic 💅

🎀 NAME 🎀

ubi_get_num_by_path — get UBI device and volume number from device path

like, you hand her a path, she hands you back the numbers. matchmaker energy fr fr 🫶

🌸 SYNOPSIS 🌸

int ubi_get_num_by_path (const char *pathname , int *ubi_num , int
*vol_id );

look at that signature. three args, one int coming back at you. no cap, that's the whole vibe ✨

🦋 ARGUMENTS 🦋

  • pathname — the volume character device node path. yes, the path — the actual filesystem string she's gonna go look at 👀
  • ubi_num — a pointer to the UBI device number that's gonna get set. she writes into it, so don't hand her garbage 💀
  • vol_id — a pointer to the UBI volume ID that's gonna get set. same deal, she's filling this one in too 🎀

💖 DESCRIPTION 💖

okay here's the tea: she returns 0 on success and sets ubi_num and vol_id for you — both of them, bestie, she's thorough 🌈 and if something goes sideways she returns an error instead. that's it. that's the function. lowkey obsessed with how unserious-simple this is 🧚

ngl the manual is kinda quiet on which error — so don't come at me asking. she returns an error otherwise, periodt 💅

👑 SEE ALSO 👑

Kernel file ./drivers/mtd/ubi/kapi.c — plus the whole friend group, and yes we're listing every single one of them because nobody gets left out 🫶

that's the whole page, bestie, you ate it up ⭐ and before you go — this little gem comes from ./drivers/mtd/ubi, dated October 2026, and it's living its best life under ubi_get_num_by_path(9) in the Kernel API Manual. slay, bye 💜🎀

📦 where this page comes from