nvme_mi_control(2)

💖 NAME 💖

nvme_mi_control — bestie, this is the one that runs a Control Primitive command 🎀

---

✨ SYNOPSIS ✨

int nvme_mi_control (nvme_mi_ep_t ep , __u8 opcode , __u16 cpsp , __u16
*result_cpsr );

---

🌸 ARGUMENTS 🌸

• ep — the endpoint for MI communication, like the little phone line you're yapping over 📞
• opcode — the Control Primitive opcode (you grab this from enum nvme_mi_control_opcode) 💅
• cpsp — the Control Primitive Specific Parameter. yes that's the whole name. say it five times fast 🫶
• result_cpsr — optional field, and if you hand it over it'll give you back the result from the CPSR field 👑

---

🦋 DESCRIPTION 🦋

okay so, what this does is it performs a Control Primitive command, and it uses whichever opcode you dropped into opcode. 🎀

and then — this is the slay part — it stores the result from the CPSR field into result_cpsr, but only if you actually set it. no result_cpsr, no result returning, no cap fr fr. 💅

See: enum nvme_mi_control_opcode ✨

---

🌈 RETURN 🌈

0 on success, and non-zero on failure. so like, zero is the main character here and anything else is giving "it didn't work bestie" 😭

---

no other manual pages linked from here, so that's the whole vibe check, periodt. 💜

written against the libnvme API manual, page date July 2026 — mwah, go run your Control Primitive commands, you gorgeous nerd 👑💖🌟