msi_device_d...n_free_wired(9)

📦 version 7.3.1, in nixpkgs unstable

💅 msi_device_domain_free_wired(9) — like, the Kernel API Manual page you actually wanna read 🎀

okay bestie, buckle up ✨ this one is a tiny little function from the Kernel API Manual and honestly? it's short, it's sweet, and it does exactly one (1) thing. let's get into it 🫶

✨ NAME ✨

msi_device_domain_free_wired — frees a wired interrupt in @domain 💖

like, that's it. that's the whole gig. no cap.

🌸 SYNOPSIS 🌸

void msi_device_domain_free_wired (struct irq_domain *domain , unsigned
int virq );

yup, returns void — she does her job and does not report back, main character energy fr fr 👑

🦋 ARGUMENTS 🦋

  • domain — the domain you're freeing the interrupt on 💅 this is where the freeing happens, bestie
  • virq — the Linux interrupt number you're freeing ✨ like, the actual number-number

💖 DESCRIPTION 💖

okay so listen 👀 this one is the counterpart of msi_device_domain_alloc_wired — and it exists specifically for the weird wired-to-MSI converting domains 🌀 yes, the weird ones. every friend group has that one feral domain and these are them.

so: you allocated a wired interrupt with msi_device_domain_alloc_wired, and now you're done with it, and this is the function that gives it back. the way that it's literally just the undo button 🎀

ngl there's not a ton of lore here — the description is one (1) sentence and she means it 💀

🌈 SEE ALSO 🌈

the whole friend group 🫶 and also the kernel file ./kernel/irq/msi.c if you wanna go read the source like the icon you are:

and that's the whole page, you're officially a wired-interrupt-freeing girlie now 💅✨

mwah 🫶 this came out of ./kernel/irq and it's dated October 2026 — see u in the next manpage bestie, stay slay 🎀💜

📦 where this page comes from