libnvmf_ker...ons_for_each(9)

📦 version 3.2, in arch rolling

💅 libnvmf_kernel_options_for_each — from the libnvme API manual, bestie ✨

okay so real talk, this little function lives in the libnvme API manual, and it's literally just here to walk you through every kernel option one at a time. no cap, that's the whole vibe. 🦋

🌸 NAME 🌸

libnvmf_kernel_options_for_each — iterate over the kernel's options 💫

✨ SYNOPSIS ✨

int libnvmf_kernel_options_for_each (struct libnvme_global_ctx *ctx ,
void (*callback)(const char *name, void *user_data) , void *user_data );

🎀 ARGUMENTS 🎀

  • ctx — the libnvme global context, aka your main character. the whole operation runs on this bestie. 👑
  • callback — gets called once per option name. one name, one callback, every single time. that's it, that's the job. 🔁
  • user_data — your own context, passed straight through to callback. it may be NULL, so no pressure if you've got nothing to hand over. 🫶

🌈 DESCRIPTION 🌈

okay so for the deets on how these options actually get read, go peek at libnvmf_kernel_option_supported. that's where the lore lives. 📖✨

⭐ RETURN ⭐

  • 0 — slay, it worked. success, periodt. 💖
  • -EINVAL — you handed over NULL for ctx or callback. not the vibe, and it will not fly. 😭
  • -EOPNOTSUPP — the kernel does not list its options (that's Linux < 5.17, so if you're on something ancient, this is your sign). 💀
  • another negative error code — yeah, something else went sideways. negative error codes are never iconic but they do happen. 🙈

🧚 a lil sign-off 🧚

this page is from October 2026, and yeah, the footer's a little cursed-looking with libnvmf_kernel_options_forlibnvmf_ker...ons_for_each(9) all smooshed together, but hey — it's from the libnvme API manual and we love her anyway. bye bestie, go iterate some options 💜🎀🌷

📦 where this page comes from