STRUCT MTK_HSDMA_VCHAN(9)

💅 struct mtk_hsdma_vchan(9) — like, the whole vibe

okay so bestie, welcome to the Kernel API Manual ✨ this one's about struct mtk_hsdma_vchan(9) and honestly it's giving "small struct, big responsibilities" 🎀

---

🌸 NAME 🌸

struct mtk_hsdma_vchan — the struct that holds all the info describing a virtual channel (VC for short, iykyk) 🦋

---

✨ SYNOPSIS ✨

struct mtk_hsdma_vchan {
    struct virt_dma_chan vc;
    struct completion issue_completion;
    bool issue_synchronize;
    struct list_head desc_hw_processing;
 };

like, that's the whole shape of it, no cap 💖

---

🧚 Members 🧚

bestie, here's the member-by-member breakdown, and yes I'm gonna be thorough because every field matters:

• vc — an instance of struct virt_dma_chan. that's it, that's the field, it's literally the virtual dma channel living its main character life inside 💅
• issue_completion — the wait for all issued descriptors to be completed. think of it as the group-chat "are we all here??" ping before anyone can move on 🫶
• issue_synchronize — a bool that indicates the channel synchronization starts. true/false, iconic binary energy ⭐
• desc_hw_processing — the list of those descriptors the hardware is currently processing. heads up though: it's protected by vc.lock, so don't be out here touching it without the lock, fr fr 🔒

---

🔥 SEE ALSO 🔥

• Kernel file ./drivers/dma/mediatek/mtk-hsdma.c
• struct mtk_hsdma_pdesc(9)
• struct mtk_hsdma_vdesc(9)
• struct mtk_hsdma_cb(9)
• struct mtk_hsdma_ring(9)
• struct mtk_hsdma_pchan(9)
• struct mtk_hsdma_soc(9)
• struct mtk_hsdma_device(9)

like, go read the whole family, they're all slay 👑

---

ngl, this page came from ./drivers/dma/mediatek, dated October 2026, and it's titled struct mtk_hsdma_vchan(9) — so now you know exactly where it lives and when it was born 💀💖

okay bye bestie, go forth and read your structs 🎀🌈