libnvme_ns_get_wwid(9)

📦 version 3.2, in arch rolling

✨ libnvme_ns_get_wwid — bestie edition ✨

okay so this is a page from the libnvme API manual, and it's literally about getting the wwid. that's it, that's the vibe. 💅

🎀 NAME 🎀

libnvme_ns_get_wwid — get wwid. yes bestie, that's the whole job description and she's iconic for it 🫶

🌸 SYNOPSIS 🌸

int libnvme_ns_get_wwid (const struct libnvme_ns *p , const char **wwid
, const char *dflt );

like look at her. three params, one int return, no cap. ✨

💖 ARGUMENTS 💖

  • p — the struct libnvme_ns instance you're querying. this is the main character of the call, ngl, it's the thing you're asking about 👑
  • wwid — where you store the value on success. it's a const char ** so you're handing over a pointer and she fills it in for you. slay 🎀
  • dflt — the value to store in wwid on failure. so like, if things go sideways you still get something in there instead of a sad little uninitialized pointer. thoughtful fr fr 💜

🔥 RETURN 🔥

  • 0 on success — periodt, we love a clean zero 🌈
  • -ENOENT if the attribute does not exist — she's just not there bestie, it's giving "ghosted by the namespace" 💀
  • or a negative errno on failure — any other bad vibe shows up as a negative errno, so check your return value, always, no exceptions 🙈
lowkey important: the -ENOENT case is specifically about the attribute not existing — that's different from some random other failure, so if you're branching on errors, iykyk, treat them separately. ✨

and that's the whole page bestie, short and sweet, she ate 🍓

sign-off szn: this was from the libnvme API manual, dated October 2026 — libnvme_ns_get_wwid, she's on the same page as her own name twice bc that's just how manpages do. mwah 💋🧚

📦 where this page comes from