pci_vc_load_port_arb_table(9)

📦 version 7.3.1, in nixpkgs unstable

💖 pci_vc_load_port_arb_table(9) — Kernel API Manual 🎀

okay so bestie, welcome to the <pink>pci_vc_load_port_arb_table</pink> page 💅 this is the one that tells your VC port arbitration table to actually go live, like hitting "apply changes" but for hardware. it lives in the <purple>Kernel API Manual</purple>, and yes it's giving main character energy ✨

🌸 NAME 🌸

pci_vc_load_port_arb_table — load the VC port arbitration table and then wait for it, because patience is a virtue fr fr 🫶

✨ SYNOPSIS ✨

void pci_vc_load_port_arb_table (struct pci_dev *dev , int pos , int res );

no return value, no drama, it just does the thing 😌

🦋 ARGUMENTS 🦋

  • dev — the device 💻 like, the actual struct pci_dev * you're doing this to
  • pos — the starting position of the VC capability — and that's <hotpink>VC/VC9/MFVC</hotpink>, so keep that straight 👑
  • res — the VC resource number, i.e. VCn, and it goes <cyan>0-7</cyan> 🔢

💜 DESCRIPTION 💜

so here's the tea 🍓 this function sets the Load Port Arbitration Table bit, which is basically you asking the hardware politely but firmly to apply the Port Arbitration Table — the one that was loaded earlier, iykyk 👀

then the actual confirmation: when the Port Arbitration Table Status clears, that's the signal that hardware has latched the table into port arbitration logic ✨ like, that's the "done ✅" moment. no cap.

ngl this is a "set a bit, then wait for a status bit to clear" situation — classic hardware handshake behaviour, the way that hardware loves to make you wait 🙈

🌈 SEE ALSO 🌈

like, go read the whole VC squad, they're all iconic 👑

and that's the page bestie 🎀 sourced from ./drivers/pci, dated October 2026 — so go forth and load those arbitration tables, you absolute icon 💖🔥🧚

📦 where this page comes from