nvme_directive_send(2)

💖 nvme_directive_send 💖

okay bestie, welcome to the libnvme API manual ✨ this one's a lil page about one very specific lil syscall-ish function and honestly? she's iconic in her own quiet way 🎀

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🌸 NAME 🌸

nvme_directive_send — Send directive command 👑

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✨ SYNOPSIS ✨

int nvme_directive_send (struct nvme_directive_send_args *args );

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🦋 ARGUMENTS 🦋

• args — a struct nvme_directive_send_args argument structure. that's it, that's the whole input, she takes one (1) struct and she's ready 💅

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💜 DESCRIPTION 💜

okay so. Directives is the whole mechanism that lets your host and the NVM subsystem or the controller exchange information with each other 🫶 like a lil gossip pipeline between machines, no cap.

And the Directive Send command? She carries the data related to one specific Directive Type on over from the host to the controller 🌈 host → controller, that's the direction, periodt.

fr fr, go read the NVMe specification for the actual deep lore — this page is not gonna spill the whole tea ☕

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🔥 RETURN 🔥

so what do you get back?

• the nvme command status if a response was received — check enum nvme_status_field for what those statuses mean bestie 👀
• or -1 with errno set, in the case where you don't get a response at all 😭

that's the vibe check on the return value. no guessing, that's literally it 💖

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🌟 a lil sign-off 🌟

this was the libnvme API manual page for nvme_directive_send(2), dated July 2026 🎀 mwah, go send some directives, you got this 🦋💅