STRUCT MTK_HSDMA_VDESC(9)

💖 struct mtk_hsdma_vdesc(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — yes, the actual kernel docs, we're doing this, and honestly? this one's a little cutie. 🎀

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🌸 NAME 🌸

struct mtk_hsdma_vdesc — the struct that holds all the info describing a virtual descriptor (aka a VD, iykyk 💅)

like, that's it, that's the whole vibe. it's the little container that keeps track of a virtual descriptor for you. no cap.

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✨ SYNOPSIS ✨

struct mtk_hsdma_vdesc {
    struct virt_dma_desc vd;
    size_t len;
    size_t residue;
    dma_addr_t dest;
    dma_addr_t src;
 };

look at her. five fields. flawless. main character energy fr fr 👑

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🦋 Members 🦋

okay let's meet the cast, one by one 🫶

• vd — an instance for struct virt_dma_desc. she's the foundation, the blueprint, the it girl this whole struct is built around. 💖
• len — the total data size the device wants to move. as in, the whole entire thing. the full send. 🔥
• residue — the remaining data size the device will move. basically what's left after some of it's been dealt with. the leftovers but make it ✨data✨ 🍓
• dest — the destination address the device wants to move to. like the address it's heading toward. very "going to the party" energy 🌈
• src — the source address the device wants to move from. where it all starts. the origin story. 💜

ngl these five are lowkey doing a whole relay race together and honestly? they ate. 💅

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👑 SEE ALSO 👑

kernel file ./drivers/dma/mediatek/mtk-hsdma.c, and honestly the whole friend group is here so let's give them their shoutouts 💖:

• struct mtk_hsdma_pdesc(9)
• struct mtk_hsdma_cb(9)
• struct mtk_hsdma_ring(9)
• struct mtk_hsdma_pchan(9)
• struct mtk_hsdma_vchan(9)
• struct mtk_hsdma_soc(9)
• struct mtk_hsdma_device(9)

go read those too, they're iconic, trust. 🧚

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and that's the page bestie!! 💜 this lil drop came at you from ./drivers/dma/mediatek, dated October 2026 — so yeah, mark your calendar, this is the struct mtk_hsdma_vdesc(9) era and we're all living in it. slay. 💅✨