nvme_mi_adm...eatures_data(2)

💖 nvme_mi_admin_get_features_data — the libnvme API manual, bestie edition 💖

okay so real talk, this page is literally about nvme_mi_admin_get_features_data from the libnvme API manual. yes she's a function, yes she's a helper, and yes she's about to be your new fave. let's get into it 🫶

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✨ NAME ✨

nvme_mi_admin_get_features_data — bestie's whole job is being a helper function for &nvme_mi_admin_get_features() 🌸

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✨ SYNOPSIS ✨

int nvme_mi_admin_get_features_data (nvme_mi_ctrl_t ctrl , enum
       nvme_features_id fid , __u32 nsid , __u32 data_len , void *data , __u32
       *result );

no cap, that's the whole signature, character for character 👑

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✨ ARGUMENTS ✨

• ctrl — the controller we're sending the command to 📮
• fid — the feature identifier (iykyk) 🎀
• nsid — namespace ID, but only if applicable for fid 🦋
• data_len — how long the feature data is, if applicable for fid, and bestie it's in bytes 📏
• data — the user address of the feature data, if applicable 🙈
• result — the command completion result, straight from CQE dword0 💅

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✨ DESCRIPTION ✨

she's a helper for features that optionally return data — and she does it using the SEL_CURRENT selector value. that's the vibe. that's the whole thing. periodt ✨

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✨ RETURN ✨

you get the nvme command status if a response was received (peep enum nvme_status_field for the deets) — or -1 with errno set if it went otherwise. 😭

heads up bestie: -1 means check errno, don't just stand there 💀

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and that's the page!! this was nvme_mi_adm...eatures_data(2) from the libnvme API manual, dated July 2026 — thanks for reading, ily, go call your helper function responsibly 💜🎀🦋✨