irq_domain_instantiate(9)

📦 version 7.3.1, in nixpkgs unstable

💜 irq_domain_instantiate(9) 💜

okay bestie, so this is a page from the Kernel API Manual — irq_domain_instantiate(9) — and honestly? it's short, it's sweet, and it's about to make a whole new irq domain data structure exist in the world. main character behavior fr fr 🎀

✨ NAME ✨

irq_domain_instantiate — instantiate a new irq domain data structure. that's it, that's the job. she creates, she instantiates, she slays 💅

🌸 SYNOPSIS 🌸

struct irq_domain * irq_domain_instantiate (const struct irq_domain_info
*info );

like literally one function, one pointer in, one pointer out. minimalism is the vibe ngl ✨

🦋 ARGUMENTS 🦋

  • info — a Domain information pointer that points at the information for this domain. yep, that's the whole description — she points at the info, the info is for this domain, we move 🫶

💖 RETURN 💖

you get back either:

  • a pointer to the instantiated irq domain</>, or
  • an ERR_PTR value 😭
so bestie, please check with IS_ERR() before you go dereferencing anything, okay? no cap, an ERR_PTR is not a real domain, it's a little encoded error being sneaky 😭💀

🌈 SEE ALSO 🌈

this section is long and she ate, so buckle up — everything lives in the kernel file ./kernel/irq/irqdomain.c 📁:

like, go read them, they're all right there and they're all iconic 👑✨

and that's the whole page bestie!! 🧚‍♀️ this one came straight out of ./kernel/irq and the version/date on the tin is October 2026 — so mark your calendar, screenshot it, send it to the group chat, the whole thing 🍓💜🎀

📦 where this page comes from