__thermal_zone_get_temp(9)

💖 __thermal_zone_get_temp(9) 💖

okay so bestie, welcome to the Kernel API Manual — this is the page about the lil internal helper that goes and grabs a thermal zone's temperature for you. it's lowkey iconic, no cap.

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✨ NAME ✨

__thermal_zone_get_temp — returns the temperature of a thermal zone 🌡️

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🌸 SYNOPSIS 🌸

int __thermal_zone_get_temp (struct thermal_zone_device *tz , int *temp );

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🎀 ARGUMENTS 🎀

• tz — a valid pointer to a struct thermal_zone_device. like, valid valid. we'll get to that.
• temp — a valid pointer to where to store the resulting temperature. this is where the answer goes, bestie. give it somewhere to live.

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🦋 DESCRIPTION 🦋

so when you pass in a valid thermal zone reference, this function will fetch its temperature and fill temp for you. that's the whole vibe. it reads the temp, it writes it to your pointer. slay. 💅

but here's the part where you gotta pay attention, fr fr:

both tz and tz->ops must be valid pointers when calling this function, and the tz->ops.get_temp callback must be provided. no callback, no temp. that's the rule.

and the big one: the function must be called under tz->lock. like, you have to be holding that lock. this is not a suggestion, this is not optional, do not pass go. 🙈

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⭐ RETURN ⭐

on success it returns 0 🎉 — an error code otherwise 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/thermal/thermal_helpers.c 📁
• thermal_zone_get_temp(9)
• thermal_cdev_update(9)
• thermal_cdev_update_nocheck(9)
• thermal_zone_get_slope(9)
• thermal_zone_get_offset(9)

go read those next, iykyk 🫶

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mwah 💋 this page lives in ./drivers/thermal, dated October 2026 — that's the source and the version, bestie, and that's the whole manpage. you ate that. 👑✨