sht21_temperature_show(9)

💖 sht21_temperature_show(9) — the Kernel API Manual, bestie edition 💖

okay so we're deep in the kernel API manual rn and this page is all about sht21_temperature_show — yes that's a mouthful, yes it slays ✨

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🎀 NAME 🎀

sht21_temperature_show — literally just here to show the temperature measurement value in sysfs 🥵🌡️

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✨ SYNOPSIS ✨

ssize_t sht21_temperature_show (struct device *dev , struct
       device_attribute *attr , char *buf );

that's the whole vibe right there, no notes 💅

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🦋 ARGUMENTS 🦋

• dev — the device, bestie. that's it, that's the arg 🫶
• attr — the device attribute 🎀
• buf — the sysfs buffer (PAGE_SIZE) where the measurement values get written to. so like, that's where the numbers go 🍓

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🌸 DESCRIPTION 🌸

the way this function gets called on read access to the temp1_input sysfs attribute — iconic behavior honestly 👑

it returns the number of bytes written into the buffer, and a negative errno on error 😭 (so if you see a negative number, that's the universe telling you something went wrong, fr fr)

ngl there's no extra lore here — read = call, bytes out or negative errno out. periodt. 💀

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💜 SEE ALSO 💜

• the kernel file ./drivers/hwmon/sht21.c 🗂️
• struct sht21(9)
• sht21_temp_ticks_to_millicelsius(9)
• sht21_rh_ticks_to_per_cent_mille(9)
• sht21_update_measurements(9)
• sht21_humidity_show(9)
• eic_show(9)

go read those next, iykyk 📚✨ — they're the whole friend group and this function is just one member of it 🌈

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and that's a wrap on the sht21_temperature_show(9) lore drop!! this page lives over in ./drivers/hwmon, dated October 2026, and it's brought to you by the Kernel API Manual itself — mwah, sending you all the kernel love, stay hydrated, compile clean, and don't forget to check your errno 💖🎀🦋🌸💅🔥👑⭐🙈🍓🧚💜