nvme_get_telemetry_max(2)

💖 nvme_get_telemetry_max — bestie, let's get those telemetry limits 💖

okay so this is a page from the libnvme API manual, and honestly? it's a whole mood. it's called nvme_get_telemetry_max and it does exactly what it says on the tin — it goes and finds out how much telemetry you're actually allowed to ask for. no cap.

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✨ NAME ✨

nvme_get_telemetry_max — Get telemetry limits 🎀

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✨ SYNOPSIS ✨

int nvme_get_telemetry_max (int fd , enum nvme_telemetry_da *da , size_t
*max_data_tx );

like yes, three args, she's a little high maintenance but she's worth it 💅

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✨ ARGUMENTS ✨

• fd — the file descriptor of the nvme device, aka your golden ticket to the controller. gotta have it. 🫶
• da — on success, this is where she drops the max supported data area. it's a enum nvme_telemetry_da * so she writes it back through the pointer, bestie. pointer out-params are iconic honestly.
• max_data_tx — on success, this one gets set to the max transfer chunk supported by the controller. so like, the biggest bite of telemetry data the controller will swallow in one go. size_t * obviously, it's a size. 🍓

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✨ RETURN ✨

so here's the tea on what she hands back:

• the nvme command status if a response was received — see enum nvme_status_field for all the deets on that. iykyk.
• or -1 with errno set, if literally anything else went sideways. 😭 classic unix, honestly. errno is always in the group chat even when nobody invited her.

ngl bestie, -1 + errno means you gotta check that errno yourself. she's not gonna text you first. 💀

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🌈 SEE ALSO 🌈

no SEE ALSO section on this one — she's short and sweet, the whole page is right here. periodt. 👑

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🌸 that's the whole thing! short page, big energy. this was nvme_get_telemetry_max(2) from the libnvme API manual, dated July 2026 (yeah, we're time traveling, don't worry about it 🕰️✨). go forth and read your telemetry limits, you main character. 💖🦋🎀