sht15_humidity_show(9)

📦 version 7.3.1, in nixpkgs unstable

💧 sht15_humidity_show(9) — the kernel API manual, bestie edition

okay so this is a page from the Kernel API Manual, and it's all about sht15_humidity_show — the little function that shows your humidity measurement value in sysfs. yes, sysfs. we love her. 🌸

✨ NAME ✨

sht15_humidity_show — show humidity measurement value in sysfs 💖

✨ SYNOPSIS ✨

ssize_t sht15_humidity_show (struct device *dev , struct
       device_attribute *attr , char *buf );

like, that's the whole signature, no cap. three args, one ssize_t return, she's iconic. 👑

✨ ARGUMENTS ✨

  • dev — device. literally the device, that's it, that's the whole vibe.
  • attr — device attribute. the attribute of said device. 🎀
  • buf — sysfs buffer where measurement values are written to. this is where the humidity number actually lands, so, main character energy fr fr.

✨ DESCRIPTION ✨

so here's the tea: this one gets called on read access to the humidity1_input sysfs attribute. 🫶 someone reads it, you show up. that simple.

and what does it give back? it returns the number of bytes written into the buffer — and if something goes wrong, it hands you a negative errno instead. so like, if the number's negative, that's not a vibe check you passed 😭 that's an error, bestie.

✨ SEE ALSO ✨

the kernel file ./drivers/hwmon/sht15.c plus this entire extended friend group, ngl it's a whole squad:

go read all of them, i'll wait 💅

cute little sign-off: this page lives under ./drivers/hwmon, dated October 2026. stay humid, stay hydrated 🍓✨
📦 where this page comes from