ENUM OWL_DMADESC_OFFSETS(9)

✨ enum owl_dmadesc_offsets ✨

okay bestie, welcome to the kernel API manual 💖 this one's from the enum owl_dmadesc_offsets(9) page and it's literally about the DMA descriptor — like, the hardware link list that makes dma transfer happen. no cap, it's a whole enum and we're gonna go through every single member together 🫶

🌸 NAME 🌸

enum owl_dmadesc_offsets — describes the DMA descriptor, a.k.a. the hardware link list used for dma transfer 💅

🎀 SYNOPSIS 🎀

enum owl_dmadesc_offsets {
    OWL_DMADESC_NEXT_LLI ,
    OWL_DMADESC_SADDR ,
    OWL_DMADESC_DADDR ,
    OWL_DMADESC_FLEN ,
    OWL_DMADESC_SRC_STRIDE ,
    OWL_DMADESC_DST_STRIDE ,
    OWL_DMADESC_CTRLA ,
    OWL_DMADESC_CTRLB ,
    OWL_DMADESC_CONST_NUM ,
    OWL_DMADESC_SIZE

};

💅 Constants 💅

okay so here's the whole cast, one by one, no skipping 👑

• OWL_DMADESC_NEXT_LLI — physical address of the next link list 🔗
• OWL_DMADESC_SADDR — source physical address 📍
• OWL_DMADESC_DADDR — destination physical address 🎯
• OWL_DMADESC_FLEN — frame length 📏
• OWL_DMADESC_SRC_STRIDE — source stride 🚶‍♀️
• OWL_DMADESC_DST_STRIDE — destination stride 🚶‍♀️
• OWL_DMADESC_CTRLA — dma_mode and linklist ctrl config ⚙️
• OWL_DMADESC_CTRLB — interrupt config 🔔
• OWL_DMADESC_CONST_NUM — data for constant fill 🧁
• OWL_DMADESC_SIZE — max size of this enum 👑

🦋 SEE ALSO 🦋

not me dropping the receipts, iykyk 📚 go check out the kernel file ./drivers/dma/owl-dma.c plus these icons: struct owl_dma_lli(9), struct owl_dma_txd(9), struct owl_dma_pchan(9), struct owl_dma_vchan(9), and struct owl_dma(9) 🌈

bestie reminder: this whole thing lives under ./drivers/dma, dated October 2026, and the page is literally called enum owl_dmadesc_offsets(9) — that's the vibe check, periodt 💜✨