DFL_FPGA_PO..._GET_IRQ_NUM(9)

✨ DFL_FPGA_PORT_ERR_GET_IRQ_NUM ✨

okay so bestie, we're in the Kernel API Manual today (section 9, kernel-space vibes only 💅) and the star of the show is DFL_FPGA_PORT_ERR_GET_IRQ_NUM. iconic name, i know. say it three times fast, i dare you 🫶

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🌸 NAME 🌸

DFL_FPGA_PORT_ERR_GET_IRQ_NUM — literally this whole thing:

_IOR(DFL_FPGA_MAGIC, DFL_PORT_BASE + 5, __u32 num_irqs)

that's the ioctl macro right there, no cap. it's giving "look at my magic numbers" energy 🔥

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🎀 SYNOPSIS 🎀

DFL_FPGA_PORT_ERR_GET_IRQ_NUM

yeah. that's it. that's the whole synopsis. short and iconic ✨

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🦋 DESCRIPTION 🦋

so what does it actually do? it gets the number of irqs supported by the fpga port error reporting private feature. that's the whole job, and she does it well 👑

and here's the tea: currently hardware supports up to 1 irq. one. single. irq. main character energy, honestly — she doesn't need more 💀

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🌈 RETURN 🌈

• 0 — slay, success 💖
• -errno — not slay, failure 😭

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💜 SEE ALSO 💜

okay bestie, buckle up, this is the friend group:

• the kernel file ./include/uapi/linux/fpga-dfl.h — go read it, iykyk 📖
• DFL_FPGA_GET_API_VERSION(9)
• DFL_FPGA_CHECK_EXTENSION(9)
• DFL_FPGA_PORT_RESET(9)
• struct dfl_fpga_irq_set(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)

all of them, together, one big happy kernel family 🧚

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lowkey reminder: this is kernel API territory, so keep it exact and keep it safe, bestie 🫶

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and that's the page!! sourced from ./include/uapi/linux, dated October 2026, filed under the Kernel API Manual — catch you in the next manpage, mwah 💋💖🎀