STRUCT MTK_CQDMA_VDESC(9)

✨ struct mtk_cqdma_vdesc — the Kernel API Manual bestie ✨

Okay so real talk, this is the manual page for struct mtk_cqdma_vdesc, and it's lowkey iconic. It's the struct that holds all the info describing a virtual descriptor (CVD). No cap, that's literally what it does. 💅

🌸 SYNOPSIS 🌸

Like, here's the whole vibe, character for character:

struct mtk_cqdma_vdesc {
    struct virt_dma_desc vd;
    size_t len;
    size_t residue;
    dma_addr_t dest;
    dma_addr_t src;
    struct dma_chan *ch;
    struct list_head node;
    struct mtk_cqdma_vdesc *parent;
 };

🎀 Members 🎀

Bestie, let me walk you through every single field because they ALL matter, fr fr:

• vd — An instance for struct virt_dma_desc. It's giving base-class energy, the main character of the struct ngl.
• len — The total data size the device wants to move. Like, the whole entire goal. 🎯
• residue — The remaining data size the device will move. Not done yet, still cooking. 🔥
• dest — The destination address the device wants to move to. Where we're going bestie. 📍
• src — The source address the device wants to move from. Where it all started. 🌱
• ch — The pointer to the corresponding dma channel. The connection, the link, the moment. 🔗
• node — The lise_head struct to build link-list for VDs. (Yes, the manual says lise_head, we don't fix it, we respect it. 🙈)
• parent — The pointer to the parent CVD. Family tree realness. 👑

💖 SEE ALSO 💖

If you're obsessed (and you should be), go check out the Kernel file ./drivers/dma/mediatek/mtk-cqdma.c plus these other icons:

• struct mtk_cqdma_pchan(9)
• struct mtk_cqdma_vchan(9)
• struct mtk_cqdma_device(9)

They're all in ./drivers/dma/mediatek and they all ate. Periodt. 💅✨

🫶 That's the whole page bestie, no gatekeeping. Go forth and slay your DMA descriptors.

Source/version + date sign-off: This lil masterpiece lives in ./drivers/dma/mediatek and the manual is dated October 2026 — mark your calendars, it's giving future classic. 🌈⭐