nvme_set_fe..._temp_thresh(2)

💖 nvme_set_fe..._temp_thresh — from the libnvme API manual ✨

okay so bestie, this is a <rainbow>libnvme</rainbow> girlie and she's here to set a temperature threshold feature on your NVMe device. that's it, that's the whole vibe. her full government name is nvme_set_features_temp_thresh and she is absolutely the main character of your thermal management era 🎀

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🌡️ NAME 🌡️

nvme_set_features_temp_thresh — Set temperature threshold feature. literally what it says on the tin, no cap 💅

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🦋 SYNOPSIS 🦋

int nvme_set_features_temp_thresh (int fd , __u16 tmpth , __u8 tmpsel ,
enum nvme_feat_tmpthresh_thsel thsel , bool save , __u32 *result );

she takes six (6) whole arguments, yes she's high maintenance, and that's iconic of her 👑

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🌸 ARGUMENTS 🌸

• fd — the file descriptor of your nvme device. this is how she finds your drive, it's giving "let me in bestie" 🔑
• tmpth — Temperature Threshold. the actual number, a __u16, so she's got range 💫
• tmpsel — Threshold Temperature Select. a __u8, picking which thing we're thresholding 🎯
• thsel — Threshold Type Select. this one's an enum nvme_feat_tmpthresh_thsel, so like, the type of threshold situation we're in ✨
• save — Save value across power states. a bool, so true means it survives a lil nap (power cycle), false means it does not, periodt 💤
• result — The command completion result from CQE dword0. it's a __u32 *, a pointer, so she writes the tea back into your variable 📝

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🔥 RETURN 🔥

so when you call her, one of two things happens:

• if a response came back, she returns the nvme command status (peep enum nvme_status_field for the whole menu of what those could be) ✅
• otherwise, she returns -1 and sets errno. yeah. errno. as is tradition 😭

ngl bestie, always check the return value. -1 plus errno is her way of saying "that did NOT slay" 💀

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that's the whole page, bestie, you ate 💅✨🦋

source: libnvme API manual, dated July 2026, page nvme_set_fe..._temp_thresh(2) — love her, mwah 🫶💖