sdca_asoc_hw_params(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdca_asoc_hw_params(9) — Kernel API Manual, but make it make sense

okay bestie, say hi to sdca_asoc_hw_params from the kernel API manual ✨ this one's short and sweet and honestly? it's giving "small but crucial" energy. let's get into it 🎀

🌸 NAME 🌸

sdca_asoc_hw_params — sets the SDCA channels, the sample rate, and the bit depth 🎶 like it literally does the audio glow-up for your stream

✨ SYNOPSIS ✨

int sdca_asoc_hw_params (struct device *dev , struct regmap *regmap ,
struct sdca_function_data *function , struct snd_pcm_substream
*substream , struct snd_pcm_hw_params *params , struct snd_soc_dai *dai
);

six pointers in, one int out, that's the whole vibe fr fr 🫶

🦋 ARGUMENTS 🦋

  • dev — pointer to the device 💻 this one's the designated snitch, it gets used for error messages so when something goes wrong it can be like "bestie, it's dev's fault"
  • regmap — pointer to the Function register map 📋 the lookup table of register goodness
  • function — pointer to the Function information 🧚 all the deets about what this Function even is
  • substream — pointer to the PCM substream 🌊 the actual audio stream we're doing this for
  • params — pointer to the hardware parameters ⚙️ the channels / sample rate / bit depth situation
  • dai — pointer to the ASoC DAI 🎛️ the digital audio interface in question, iconic

💖 DESCRIPTION 💖

typically called from hw_params 💅 that's it. that's the description. no cap, it's a one-liner and we respect the brevity ✨

lowkey obsessed with how the whole DESCRIPTION section is just one sentence. main character energy without even trying 🎀

🔥 RETURN 🔥

returns zero on success 🎉 and a negative error code on failure 😭 so like, check it, please. don't just ignore the return value, that's not the vibe 💀

🌈 SEE ALSO 🌈

that's a whole friend group right there 🫶 go read them too, iykyk 👑

and that's the page!! 🧚‍♀️ this one lives in ./sound/soc/sdca and the version on the tin says October 2026 — so like, mark your calendar bestie, she's from the future ⭐💜 bye!! 💅

📦 where this page comes from