write_sysfs_int_and_verify(9)

💖 write_sysfs_int_and_verify(9) 💖

okay so bestie, we're in the Kernel API Manual today and this little function is genuinely iconic — it's the one that writes an int to a sysfs file and then double-checks it actually landed. the way it verifies?? obsessed. 🎀

---

✨ NAME ✨

write_sysfs_int_and_verify — write an integer value to a sysfs file and verify

like, that's the whole job. write the number, then verify. she does exactly what it says on the tin, no cap. 💅

---

🦋 SYNOPSIS 🦋

int write_sysfs_int_and_verify (const char *filename , const char
*basedir , int val );

that's the signature, character for character, don't come for me. 🌸

---

🌈 ARGUMENTS 🌈

• filename — name of the file to write to. literally the file. the one you're writing to. 🫶
• basedir — the sysfs directory in which the file is to be found. so like, where she lives. the file's home address, iykyk. 🏡
• val — integer value to write to file. the actual number going in. main character of this whole operation ngl. 🔥

---

⭐ DESCRIPTION ⭐

Returns a value >= 0 on success, otherwise a negative error code.

that's it, that's the vibe check. if you get something >= 0? slay, you ate. if you get a negative error code? 💀 that's your sign something went sideways — handle it, bestie.

---

🧚 SEE ALSO 🧚

Kernel file ./tools/iio/iio_utils.c — and her whole friend group:

• 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_string_and_verify(9)
• write_sysfs_string(9)
• read_sysfs_posint(9)
• read_sysfs_float(9)
• read_sysfs_string(9)

---

lowkey go read the others too, they're all in ./tools/iio and they're all part of the same lore ✨

---

mwah 💋 that's it from the Kernel API Manual — this page lives in ./tools/iio, dated October 2026, and yes, it's still write_sysfs_int_and_verify(9). go write some integers and verify them, queen 👑