create_root_hv_pci_bus(9)

📦 version 7.3.1, in nixpkgs unstable

💅 create_root_hv_pci_bus(9) — Kernel API Manual energy 🎀

okay so bestie, buckle up, because this little function is literally from the Kernel API Manual and it's the one that's like… "here, have a whole new root PCI bus, you're welcome ✨"

🌸 NAME 🌸

create_root_hv_pci_bus — expose a new root PCI bus 🚌💫 (yes, expose, like it's stepping out onto the runway, main character energy fr fr)

✨ SYNOPSIS ✨

int create_root_hv_pci_bus (struct hv_pcibus_device *hbus );

that's it, that's the whole vibe check 🫶

🎀 ARGUMENTS 🎀

  • hbus — the root PCI bus, as understood by this driver 💖 like, this driver's specific interpretation of what a root PCI bus even is, iykyk

💀 RETURN 💀

  • 0 on success — slay, it worked, we ate 🔥
  • -errno on failure — not slay, it didn't work, and the specific negative errno tells you why 😭

🔮 SEE ALSO 🔮

okay so there's a LOT of friends in this group chat, and honestly they all deserve their mention, so here we go, no cap, every single one 👑

like, that's the whole extended fam right there 💜 go read them, they're iconic, periodt.

lowkey a reminder that create_root_hv_pci_bus itself only promises 0 or -errno — everything else lives in the frens above 🌈

and that's a wrap, bestie!! this page lives in ./drivers/pci/controller, it's dated October 2026, and it's brought to you by the Kernel API Manual — now go expose a PCI bus and be gorgeous doing it 🦋💖👑

📦 where this page comes from