STRUCT D40_LOG_LLI_FULL(9)

💅 struct d40_log_lli_full(9) — a Kernel API Manual moment

okay bestie, so we're in the Kernel API Manual today and the main character is struct d40_log_lli_full(9). yes it's a struct. yes it's iconic. let's get into it ✨

---

🌸 NAME 🌸

struct d40_log_lli_full — the LCPA layout, fr fr

---

🎀 SYNOPSIS 🎀

ok so here's the whole vibe, literally the entire struct, no cap:

struct d40_log_lli_full {
    u32 lcsp0;
    u32 lcsp1;
    u32 lcsp2;
    u32 lcsp3;
 };

that's it. four u32s. four. count 'em. she's lowkey minimal and I respect it 🫶

---

🦋 Members 🦋

• lcsp0 — Logical Channel Standard Param 0 — Src. it's the source one, slay 💖
• lcsp1 — Logical Channel Standard Param 1 — Src. another source param, she's giving sequel energy ✨
• lcsp2 — Logical Channel Standard Param 2 — Dst. plot twist, we switched to destination 🎀
• lcsp3 — Logical Channel Standard Param 3 — Dst. and the last one's destination too, periodt 💅

---

🌈 Description 🌈

so this struct maps directly to the LCPA physical memory layout. and here's the part where you pay attention bestie: it must map to the hw. like, that's not optional. that's the whole point. that's her job 👑

no wiggle room here — the layout has to line up with the hardware, or it's not doing the thing it exists to do 🙈

---

🔥 SEE ALSO 🔥

go look at the kernel file ./drivers/dma/ste_dma40_ll.h for the whole friend group, because these structs literally all hang out together:

• struct d40_phy_lli(9)
• struct d40_phy_lli_bidir(9)
• struct d40_log_lli(9)
• struct d40_log_lli_bidir(9)
• struct d40_def_lcsp(9)

---

and that's the page!! mwah 💋 this one comes to you from ./drivers/dma, dated October 2026, and yes it's the Kernel API Manual — go read some structs, ily, bye 🧚💜