STRUCT DW_DMA_CHIP(9)

🌸 NAME 🌸

okay so bestie, welcome to struct dw_dma_chip(9) from the Kernel API Manual — manual name folded in near the top like a little bow 🎀. This struct is literally the representation of DesignWare DMA controller hardware. It's giving "I am the hardware, and I know it" main-character energy 👑.

✨ SYNOPSIS ✨

       struct dw_dma_chip {
           struct device   *dev;
           int id;
           int irq;
           void __iomem    *regs;
           struct clk      *clk;
           struct dw_dma   *dw;
           const struct dw_dma_platform_data       *pdata;
        };

🎀 Members 🎀

• dev — the struct device of the DMA controller 💖 like the controller's whole device identity, slay.
• id — instance ID. tiny but important, no cap ✨
• irq — irq line. the interrupt bestie 🫶
• regs — memory mapped I/O space. that's where the I/O lives 💅
• clk — hclk clock. clock source realness 🕰️
• dw — the struct dw_dma that is filed by dw_dma_probe — yes, the page says filed, bestie, that's the exact word 😭💅
• pdata — pointer to platform data. platform-data pointer icon behavior 🌟

🔥 SEE ALSO 🔥

Kernel file ./include/linux/dma/dw.h — go peek, iykyk 📖🦋

Source/version: ./include/linux/dma · Date: October 2026. xoxo, your Unix bestie — now go slay some DMA 💅🫶