STRUCT THC_DMA_CONTEXT(9)

💅 struct thc_dma_context(9)

Ok so bestie, welcome to the Kernel API Manual — yes we're reading kernel headers now, we contain multitudes 🎀 This one's all about struct thc_dma_context, aka the THC DMA context, and honestly? It's giving "small struct, big responsibilities." Let's get into it ✨

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🌸 NAME

struct thc_dma_context — the THC DMA context. That's it, that's the vibe. 👑

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✨ SYNOPSIS

Here's the whole thing, laid out exactly as it lives in the header, no cap:

struct thc_dma_context {
    struct thc_dma_configuration dma_config[MAX_THC_DMA_CHANNEL];
    u8 use_write_interrupts;
    bool rx_max_size_en;
    bool rx_int_delay_en;
 };

Like, look at her. dma_config is an array of struct thc_dma_configuration sized MAX_THC_DMA_CHANNEL, and then there's a u8 flag and two bools. Simple, iconic, done. 🦋

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🫶 Members

Ok so the Members section is where the lore drops, and here's what each one is actually about:

• use_write_interrupts — tells you whether TxDMA is using an interrupt or polling. That's the whole assignment, bestie: interrupt vs. polling, pick your fighter. ⚡
• rx_max_size_en — a temp flag (yes, temp, she's just visiting 👀) that indicates whether the THC I2C Rx max input size control feature is enabled or not. Important detail: it's only used during SWDMA operation. Don't come for her outside of SWDMA, she's not clocked in. 💀
• rx_int_delay_en — also a temp flag, this time indicating whether the THC I2C Rx interrupt delay feature is enabled or not. And same rule as her sister above: only used during SWDMA operation. Periodt. 🎀

Not me pointing out that dma_config shows up in the struct but doesn't get its own Members write-up here — that's just how the page is, so I'm not gonna invent lore for it. 🙈

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🔥 SEE ALSO

Go touch grass in the kernel tree, specifically:

• Kernel file ./drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h
• struct thc_dma_configuration(9) — the one you actually want if you're curious about dma_config 👀

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🌈 Sign-off

This lil masterpiece comes from ./drivers/hid/intel-thc-hid/in... (yes, the source path itself got the ellipsis treatment, she's mysterious like that 🧚) and it's dated October 2026. Manual name: struct thc_dma_context(9). Slay, go read your headers, ily, bye! 💖⭐