acpi_pci_link_allocate_irq(9)

✨ acpi_pci_link_allocate_irq(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 this one lives in section 9 and it's literally called acpi_pci_link_allocate_irq — say that five times fast, i dare you 🫶

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🌸 NAME 🌸

acpi_pci_link_allocate_irq — Retrieve a link device GSI ⚡

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🎀 SYNOPSIS 🎀

int acpi_pci_link_allocate_irq (acpi_handle handle , int index , int
*triggering , int *polarity , char **name , u32 *gsi );

like, that's the whole vibe right there 👑

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🦋 ARGUMENTS 🦋

• handle — the handle for the link device, aka your main character 🔑
• index — the GSI index, it's giving "which one tho" 🔢
• triggering — a pointer to store the GSI trigger, so it can remember how it's triggered 💅
• polarity — a pointer to store GSI polarity, because everything has two sides bestie ⚖️
• name — a pointer to store the link device name, so it knows what to call itself 🏷️
• gsi — a pointer to store the GSI number, the actual digits, no cap 🔥

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💜 RETURN 💜

• 0 on success — and when it slays, it comes with triggering, polarity, name, gsi all initialized ✨
• -ENODEV on failure — it's giving "no device found", huge L, we don't talk about it 😭

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/acpi/pci_link.c — go read it, iykyk 📖

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and that's the whole page bestie, no notes 💅 fr fr — this lil manual page is from ./drivers/acpi, dated October 2026, and it's the acpi_pci_link_allocate_irq(9) entry, so like, cite it properly in your kernel homework and you'll ate that 🎓⭐ 🦋 🌈 🍓 👑