read_sysfs_posint(9)

💖 read_sysfs_posint(9) — a Kernel API Manual moment 💖

okay bestie, listen, this one is from the Kernel API Manual and it's honestly such a vibe. like yes it's a tiny function, but it's doing the work, and we're gonna learn it together. no cap. 🦋

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✨ NAME ✨

read_sysfs_posint — read an integer value from file 🌸

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🎀 SYNOPSIS 🎀

int read_sysfs_posint (const char *filename , const char *basedir );

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💅 ARGUMENTS 💅

• filename — the name of file to read from, iykyk. that's the whole ass job of this parameter. 🍓
• basedir — the sysfs directory in which the file is to be found. it's giving "look here first, bestie" energy. 🧚

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🔥 DESCRIPTION 🔥

so what does it actually do? it returns the read integer value >= 0 on success 💖 — and if it doesn't slay, you get a negative error code instead. 😭 that's it. that's the whole function. lowkey iconic for how unbothered it is.

highkey important: success means a non-negative integer, and failure means a negative error code. don't mix them up, bestie, that's the whole vibe check. 💀

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👑 SEE ALSO 👑

Kernel file ./tools/iio/iio_utils.c — the source, the mothership, the main character. ⭐

and the whole squad, fr fr:

• iioutils_break_up_name(9)
• iioutils_get_type(9)
• iioutils_get_param_float(9)
• bsort_channel_array_by_index(9)
• build_channel_array(9)
• find_type_by_name(9)
• write_sysfs_int(9)
• write_sysfs_int_and_verify(9)
• write_sysfs_string_and_verify(9)
• write_sysfs_string(9)
• read_sysfs_float(9)
• read_sysfs_string(9)

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and that's the page, bestie!! 💜 this little cutie lives over in ./tools/iio and was dated October 2026 — so yeah, note the timestamp, remember the source, and go read some positive integers. periodt. 🎀✨🫶