nvme_lookup_ctrl(2)

✨ nvme_lookup_ctrl (2) ✨

okay bestie, welcome to the libnvme API manual page for nvme_lookup_ctrl 💖 this is a section 2 function, so it's a real actual library call, and she is here to find you a controller. no cap.

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🌸 NAME 🌸

nvme_lookup_ctrl — look up an nvme_ctrl_t object 👑

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🦋 SYNOPSIS 🦋

nvme_ctrl_t nvme_lookup_ctrl (nvme_subsystem_t s , const char *transport
, const char *traddr , const char *host_traddr , const char *host_iface
, const char *trsvcid , nvme_ctrl_t p );

she takes a whole lil friend group of arguments and hands you back a controller. the way that signature is giving "yes i have six parameters, what about it" 💅

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🎀 ARGUMENTS 🎀

• s — the nvme_subsystem_t object. this is the subsystem we're snooping around in, fr fr.
• transport — transport name. like, how are we travelling today bestie 🚗
• traddr — transport address. where the transport lives.
• host_traddr — host transport address. the address of the host side of the transport thing.
• host_iface — host interface name. the name of the host interface.
• trsvcid — transport service identifier. her job is to identify the transport service, iconic behaviour.
• p — previous controller instance. not the previous previous, like, the one you already found. she's a starting point, not an ex 🙈

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💫 DESCRIPTION 💫

so basically 🫶 we're looking up a controller inside s, and the vibe check happens on transport, traddr, host_traddr, host_iface, and trsvcid.

⚠️ transport must be specified. that one is non-negotiable, she is the main character of this lookup.

the other fields may be required too — it literally depends on the transport, so like. read the room. iykyk.

if nothing matches your search? don't even stress. a new object is created if none is found. she's not going to leave you controllerless, bestie, she's gonna make you one ✨

and here's the cute lil detail: if p is specified, the lookup starts at p instead of at the first controller. so you can just pick up where you left off. obsessed. no need to start from zero every single time 🌈

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🔥 RETURN 🔥

she returns a controller instance. that's it, that's the tea 🍓

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💜 and that's a wrap 💜

this page came straight from the libnvme API manual, dated July 2026, and it lives at nvme_lookup_ctrl(2) — same name in the corner, same name in the section header, she's nothing if not consistent 💅

k byeeee, go look up some controllers bestie, you're gonna slay 👑🧚