NVME_GET_LOG_TELEMETRY_HOST(2)

✨ nvme_get_log_telemetry_host ✨

okay bestie, welcome to the libnvme API manual 💖 this one is a little function with a big job, and yes it's from libnvme, and yes we're gonna get through it together. grab a boba, we're doing sysadmin shit 🧋

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🌸 NAME 🌸

nvme_get_log_telemetry_host — get the Telemetry Host-Initiated log page 🦋

it does exactly what it says on the tin, no cap.

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✨ SYNOPSIS ✨

int nvme_get_log_telemetry_host (int fd , __u64 offset , __u32 len ,
       void *log );

look at her, four lil params, so unbothered 💅

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🎀 ARGUMENTS 🎀

• fd — the file descriptor of your nvme device. like, the whole point of contact, the main character of this story 👑
• offset — how far into the telemetry data you wanna start. offset into the telemetry data, fr fr.
• len — the length of the user buffer you're handing over to hold the log data, in bytes. yes, bytes, the unit matters bestie 🙈
• log — the user address for the log page data. that's where the good stuff lands 💖

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🫶 DESCRIPTION 🫶

so basically, it retrieves the Telemetry Host-Initiated log page at the requested offset, and it does this using the previously existing capture. like, the capture that already happened, it's not making a new one, it's working with what's there 🌈

that's it. that's the vibe. lowkey simple, highkey important.

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💀 RETURN 💀

here's the tea: you get back the nvme command status if a response was received (peep enum nvme_status_field for all the possible moods it could be in).

or, and hear me out, you get -1 with errno set. that's the "something went sideways" path, and honestly, when you see that -1, check your errno, that's where the truth lives 🔥

no response received = -1 + errno. don't skip checking it, that's how you end up confused at 2am 😭

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aaaand that's the whole page, you ate that 🍓 go forth and log your telemetry, you absolute icon.

this little love letter is from the libnvme API manual, dated July 2026 ✨ nvme_get_log_telemetry_host(2), periodt. 💜