pci_disable_pri(9)

📦 version 7.3.1, in nixpkgs unstable

✨ pci_disable_pri — like, the Kernel API Manual page, bestie ✨

Okay so this is from the Kernel API Manual, section 9, and it's literally all about one tiny little void function. Let's get into it 🫶

🌸 NAME 🌸

pci_disable_pri — turns OFF the PRI capability. That's it. That's the whole vibe 💅

🦋 SYNOPSIS 🦋

void pci_disable_pri (struct pci_dev *pdev );

No return value, no drama — it's a void function, she doesn't give anything back 👑

🎀 ARGUMENTS 🎀

  • pdev — the PCI device structure, aka the lil guy you're doing this to. This is the one and only thing you hand her 🌈

💖 DESCRIPTION 💖

Okay so here's the tea: pci_disable_pri only clears the enabled-bit, and it does that regardless of its former value. So like — it doesn't peek at what the bit used to be first, doesn't ask questions, doesn't check. It just clears it. Periodt 🧚

Not me emphasizing this again but fr fr: only clears the enabled-bit, regardless of its former value. That's the entire behavior, no cap 💀

⭐ SEE ALSO ⭐

Go check out the Kernel file ./drivers/pci/ats.c and then these iconic functions, all in the (9) section:

Like a whole friend group honestly — ATS girlies, PRI girlies, PASID girlies, they all hang out together 💜

💫 sign-off 💫

This page lives in ./drivers/pci and it's dated October 2026 — so yes, she's serving future energy ⭐ Anyway, go clear that bit bestie, mwah 🍓💖

📦 where this page comes from