cs_dsp_remove_padding(9)

📦 version 7.3.1, in nixpkgs unstable

✨ cs_dsp_remove_padding (9) — the Kernel API Manual glow-up ✨

Okay so bestie, welcome to the cs_dsp_remove_padding(9) page from the Kernel API Manual 💅 this one's short and sweet and honestly kinda iconic for how much work it does in so few lines.

🌸 NAME 🌸

cs_dsp_remove_padding — literally converts unpacked words into packed bytes, no cap 🦋

🎀 SYNOPSIS 🎀

void cs_dsp_remove_padding (u32 *buf , int nwords );

💖 ARGUMENTS 💖

  • buf — the buffer holding the DSP words you read from DSP memory 🧚 this is the thing getting fixed up, bestie.
  • nwords — how many words you want converted. Count them carefully, okay? 🔥

👑 DESCRIPTION 👑

So here's the vibe: DSP words coming off the register map arrive with pad bytes chilling in them, and the data bytes are in swapped order 😭 which is giving "unusable, honestly."

This function swaps everything to the native endian order and strips out those pad bytes. Two jobs, one call, ate and left no crumbs ✨

🌈 SEE ALSO 🌈

Kernel file: ./drivers/firmware/cirrus/cs_dsp.c 📁

The whole friend group, in order 💜

mwah, that's the whole page 🫶 this little number lives in ./drivers/firmware/cirrus and it's dated October 2026 — catch you in the next manpage, bestie 💅✨

📦 where this page comes from