snd_soc_com..._update_bits(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 snd_soc_component_update_bits 🎀

okay bestie, welcome to the Kernel API Manual, section 9 — this one's from the ALSA/ASoC corner of the kernel and honestly? it's giving "quiet little workhorse" energy. sit down, hydrate, let's go 💅

✨ NAME ✨

snd_soc_component_update_bits — literally just Perform read/modify/write cycle. that's the whole vibe. read it, change the bits you care about, write it back. iconique. 👑

🦋 SYNOPSIS 🦋

int snd_soc_component_update_bits (struct snd_soc_component *component ,
unsigned int reg , unsigned int mask , unsigned int val );

no cap, that's the exact signature — copy it character for character if you're pasting it somewhere, bestie 🫶

🌸 ARGUMENTS 🌸

  • component — the Component to update 💖 this is the one getting the glow-up.
  • reg — the Register to update ✨ the specific spot we're poking at.
  • mask — the Mask that specifies which bits to update 🎀 like a little stencil: only the bits it covers get touched, everything else stays exactly as it was.
  • val — the New value for the bits specified by mask 🌈 the fresh new lewk for those bits.

🔥 RETURN 🔥

so here's the tea on what you get back:

  • 1 — the operation was successful and the value of the register actually changed 🎉 glow-up confirmed.
  • 0 — the operation was successful, but the value did not change 😭 like, it worked, the register just said "no notes, I'm already perfect."
  • a negative error code otherwise 💀 that's your "something went wrong" era, handle it.
ngl the 1 vs 0 distinction matters — same success, different outcome. don't sleep on it 🙈

💜 SEE ALSO 💜

all the sibling functions living rent-free in Kernel file ./sound/soc/soc-component.c 👑 go say hi:

that's the whole page bestie, you ate that 🍓 mwah 💋

signed off from ./sound/soc · October 2026 · Kernel API Manual, section 9 🧚‍♀️⭐

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