pci_epc_get_msi(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 pci_epc_get_msi(9) 🌸

okay so bestie, welcome to the Kernel API Manual — this one's a lil function from <pink>pci_epc_get_msi(9)</pink> and honestly it's giving "small but mighty" energy ✨

💖 NAME 💖

pci_epc_get_msi — literally just: get the number of MSI interrupt numbers allocated 🎀

🦋 SYNOPSIS 🦋

int pci_epc_get_msi (struct pci_epc *epc , u8 func_no , u8 vfunc_no );

✨ ARGUMENTS ✨

  • epc — the EPC device to which MSI interrupts was requested 👑 like, the whole device in question
  • func_no — the physical endpoint function number in the EPC device 🔥
  • vfunc_no — the virtual endpoint function number in the physical function 🌈 yes babes, virtual inside physical, it's nested like that

💅 DESCRIPTION 💅

Invoke this bad boy to get the number of MSI interrupts allocated by the RC. that's it, that's the whole vibe. no cap 💀

🫶 SEE ALSO 🫶

Kernel file ./drivers/pci/endpoint/pci-epc-core.c

and the whole friend group, fr fr — these ones are all (9) section besties:

ok that's the whole page bestie, go forth and read your MSI counts 💜

mwah 💋 this cutie lives under ./drivers/pci/endpoint, dated October 2026, and answers to the name pci_epc_get_msi(9) — periodt 🎀

📦 where this page comes from