acomp_request_set_src_dma(9)

📦 version 7.3.1, in nixpkgs unstable

💅 acomp_request_set_src_dma — bestie's guide to the kernel API manual, section 9

okay so like, welcome to the acomp_request_set_src_dma(9) page, it's giving "small function, big responsibility" energy and honestly we love her for it 🎀

✨ NAME ✨

acomp_request_set_src_dma — Sets DMA source virtual address 🌸

that's it. that's the whole name section. short and iconic, no notes 💅

🌈 SYNOPSIS 🌈

void acomp_request_set_src_dma (struct acomp_req *req , const u8 *src ,
       unsigned int slen );

like, look at her. void return, three args, absolutely no drama. we stan 🫶

🔥 ARGUMENTS 🔥

  • req — the asynchronous compress request, aka the main character of this whole operation 👑
  • src — a virtual address pointer to the input buffer, literally just "hey, your data's over there" ✨
  • slen — the size of the input buffer, because the kernel needs to know how much of a vibe we're working with 📏

💖 DESCRIPTION 💖

so what does this actually do? it Sets source virtual address required by an acomp operation. that's the whole job. she's focused, she's efficient, she ate 💅

⚠️ but bestie, hear me on this one — the address must be usable for DMA. like, no cap, this is not a soft suggestion. if your address isn't DMA-usable, that's a whole problem and this page is not gonna save you 😭

🦋 SEE ALSO 🦋

the whole friend group, assembled 🫶 here's everyone you might wanna meet:

and that's the page!! 🎀 she lives in ./include/crypto, she's dated October 2026, and she's officially part of the Kernel API Manual, section 9 — acomp_request_set_src_dma(9), periodt ✨💜

📦 where this page comes from