STRUCT DFL_FPGA_IRQ_SET(9)

💜 struct dfl_fpga_irq_set(9) — from the Kernel API Manual, bestie 🎀

okay so real talk, we are doing a whole kernel API manual page today, and honestly? it's giving "short but iconic." no cap. sit down, grab a strawberry 🍓, and let's get into it.

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✨ NAME ✨

struct dfl_fpga_irq_set — literally the argument for the DFL_FPGA_XXX_SET_IRQ ioctl. that's it, that's the whole vibe. she's the payload, she's the main character, she shows up in the ioctl and does her thing 💅

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🌸 SYNOPSIS 🌸

struct dfl_fpga_irq_set {
    __u32 start;
    __u32 count;
    __s32 evtfds[];
};

look at her. three fields. no wasted space. lowkey a minimalist queen 👑

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🦋 Members 🦋

• start — the index of the first irq. where we're starting the party, basically. the beginning of the lineup 🎀
• count — the number of eventfd handlers. like, how many of them we're bringing to the function. the headcount fr fr ✨
• evtfds — the eventfd handlers themselves. the actual guests of honor 🫶

ngl, she's short. but every field is carrying weight, and that's what matters.

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👑 SEE ALSO 👑

obvi you're gonna want the whole friend group, so here's the squad — go read them, they're all waiting for you:

• the kernel file ./include/uapi/linux/fpga-dfl.h
• DFL_FPGA_GET_API_VERSION(9)
• DFL_FPGA_CHECK_EXTENSION(9)
• DFL_FPGA_PORT_RESET(9)
• DFL_FPGA_PORT_ERR_GET_IRQ_NUM(9)
• DFL_FPGA_PORT_ERR_SET_IRQ(9)
• DFL_FPGA_PORT_UINT_GET_IRQ_NUM(9)
• DFL_FPGA_PORT_UINT_SET_IRQ(9)
• DFL_FPGA_FME_PORT_RELEASE(9)
• DFL_FPGA_FME_PORT_ASSIGN(9)
• DFL_FPGA_FME_ERR_GET_IRQ_NUM(9)
• DFL_FPGA_FME_ERR_SET_IRQ(9)

like, twelve cross-references?? she said "I have friends, actually" 😭💖

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💀 reminder that this is the struct used by those DFL_FPGA_XXX_SET_IRQ ioctls — don't come for me if you mix up the order of the fields, I warned you.

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and that's the page!! sourced straight from ./include/uapi/linux, dated October 2026, and yes the manual name is struct dfl_fpga_irq_set(9) — say it with your chest 🗣️💜

go off bestie, may your irqs always be indexed correctly 🌈⭐🧚