ads131m_rmw_reg(9)

📦 version 7.3.1, in nixpkgs unstable

✨ ads131m_rmw_reg(9) ✨

okay so this is a page from the Kernel API Manual, bestie — it's ads131m_rmw_reg(9), and it's literally the "peek, tweak, put it back" girlie of the ADS131M driver family. let's get into it 💅

🌸 NAME 🌸

ads131m_rmw_reg — reads, modifies, and writes a single register. that's it, that's the whole vibe. one register. read it, change it, send it back. iconic behavior honestly 🎀

🦋 SYNOPSIS 🦋

int ads131m_rmw_reg (struct ads131m_priv *priv , u8 reg , u16 clear ,
u16 set );

yes she takes four arguments and yes she returns an int. she's lowkey built different ✨

💖 ARGUMENTS 💖

  • priv — the device private data structure. like, the whole personality of the device lives in here, and you're handing her over.
  • reg — the 8-bit register address. so it's a u8, keep it in that range, no cap.
  • clear — bitmask of bits to clear. the "✂️ not you, not you" list.
  • set — bitmask of bits to set. the "👑 you, you, and also you" list.

🔥 DESCRIPTION 🔥

so what does she actually do? she performs an atomic read-modify-write operation on a register. the way that works: she reads the register, applies the clear and set masks to it, and then writes the new value back — but only if it has changed. not her wasting a write for nothing, no ma'am. 🫶

atomic is the key word here babe, don't sleep on it — it's a read-modify-write as one operation, not three separate little errands. 🧚

⭐ RETURN ⭐

  • 0 on success — slay, we ate 💅
  • a negative error code — something's giving wrong, go check it 😭

🌈 SEE ALSO 🌈

kernel file: ./drivers/iio/adc/ti-ads131m02.c — that's where the actual code hangs out, go say hi 👑

and the whole friend group, fr fr:

okay that's the page!! mwah 💋 this one lives in ./drivers/iio/adc and the date on it is October 2026, so like… future girlie behavior honestly ⏳✨ stay hydrated, read your registers atomically, and remember: clear the bits you don't want, set the bits you do. periodt. 🎀🦋💜

📦 where this page comes from