NVME_MI_MI_READ_MI_DATA_SUBSYS(2)

💖 nvme_mi_mi_read_mi_data_subsys(2) 💖

okay so bestie, welcome to the libnvme API manual — section 2, daemon/system calls vibe, periodt. this one is literally all about grabbing a subsystem's deets from an NVMe-MI endpoint and slaying. let's get into it 🎀

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✨ NAME ✨

nvme_mi_mi_read_mi_data_subsys — Perform a Read MI Data Structure command, retrieving subsystem data. it's giving "just tell me about the subsystem please" 💅

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✨ SYNOPSIS ✨

int nvme_mi_mi_read_mi_data_subsys (nvme_mi_ep_t ep , struct
nvme_mi_read_nvm_ss_info *s );

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✨ ARGUMENTS ✨

• ep — the endpoint for MI communication. this is your lil phone line to the management interface, no cap 📞
• s — the subsystem information to populate. you hand her an empty struct and she fills it in, main character energy fr fr

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✨ DESCRIPTION ✨

so basically this function retrieves the Subsystem information — that's the number of external ports and the NVMe version information. and if you wanna know exactly what shape that info comes in, go peek at struct nvme_mi_read_nvm_ss_info. she's iconic, she's specific, she's the whole point 💖

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✨ RETURN ✨

the nvme command status if a response was received (check enum nvme_status_field for that one), or -1 with errno set otherwise. so if you see that -1, don't come for her — check your errno, bestie 😭

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ngl, if a response came back, you get the nvme command status. if not? -1 and errno got something to say. lowkey important, highkey useful 🫶

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that's the whole page, no crumbs left. this was the libnvme API manual, July 2026 edition — thanks for reading my little manpage era, mwah 💋✨🦋🎀