STRUCT STM32_DMA_CFG(9)

✨ struct stm32_dma_cfg(9) ✨

okay so welcome to the Kernel API Manual bestie 💖 this one's all about struct stm32_dma_cfg — aka the STM32 DMA custom configuration situation. it's a struct, it's got four fields, and it's honestly giving main character energy for your DMA setup 🎀

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🌸 NAME 🌸

struct stm32_dma_cfg — the STM32 DMA custom configuration struct. that's it, that's the vibe 🦋

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⭐ SYNOPSIS ⭐

here's the whole thing, copied exactly, no cap:

struct stm32_dma_cfg {
    u32 channel_id;
    u32 request_line;
    u32 stream_config;
    u32 features;
 };

like… four u32s and a dream 😭 it's so clean, i'm obsessed 💅

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🫶 Members 🫶

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

• channel_id — the channel ID. literally just which channel we're talking about, that's her whole job 🎀
• request_line — the DMA request. yep, that's the request line, periodt ✨
• stream_config — a 32bit mask specifying the DMA channel configuration. it's a mask, it's 32 bits, it configures the channel — iconic behaviour honestly 👑
• features — a 32bit mask specifying the DMA Feature list. also 32 bits, also a mask, but this one's for the feature list 🌈

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🦋 SEE ALSO 🦋

if you wanna keep reading (and you should, iykyk), go check out:

• Kernel file ./drivers/dma/stm32/stm32-dma.c struct
• stm32_dma_mdma_config(9)
• stm32_dma_is_current_sg(9)

fr fr go read them, they're linked for a reason 💜

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ngl this page is short but she ate 💅 no warnings, no bugs, no deprecated anything — just a little struct minding her own business 🌸

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and that's the whole thing bestie!! 🎉 this beauty lives over in ./drivers/dma/stm32, dated October 2026, and it's struct stm32_dma_cfg(9) in the Kernel API Manual — go forth and configure your DMA, you've got this 🫶✨🍓