msi_domain_alloc_irqs_range(9)

📦 version 7.3.1, in nixpkgs unstable

💅 msi_domain_alloc_irqs_range(9) 💅

okay so bestie, welcome to the Kernel API Manual — this page is literally about msi_domain_alloc_irqs_range, and it's giving “allocate a whole range of interrupts from a MSI interrupt domain” main-character energy. No cap. 🦋

🌸 NAME 🌸

msi_domain_alloc_irqs_range — allocate interrupts from a MSI interrupt domain. 🎀

✨ SYNOPSIS ✨

int msi_domain_alloc_irqs_range (struct device *dev , unsigned int domid
, unsigned int first , unsigned int last );

This signature is exact, character-for-character. Keep it cute, keep it correct. 💖

👑 ARGUMENTS 👑

  • dev — pointer to the device struct of the device for which the interrupts are allocated. This is the device whose interrupt situation we're handling. 🫶
  • domid — Id of the interrupt domain to operate on. Yes, the domain id, not a vibe id. 💅
  • first — first index to allocate, and it's inclusive — like, it counts. 🍓
  • last — last index to allocate, also inclusive — both ends are invited to the party. 🎀

🔥 RETURN 🔥

It returns 0 on success or an error code. That's the whole return vibe: success is 0, anything else is an error code. 😭

🌈 SEE ALSO 🌈

Kernel file ./kernel/irq/msi.c is the source-file bestie, and here's the full friend group in original order:

Signed with glitter and good vibes from the ./kernel/irq source corner of the Kernel API Manual, dated October 2026 — mwah 💖✨

📦 where this page comes from