pcie_pme_from_pci_bridge(9)

hey bestie — welcome to the Kernel API Manual page for pcie_pme_from_pci_bridge 💖

💖 NAME 💖

pcie_pme_from_pci_bridge — checks if a PCIe-PCI bridge generated a PME. That's the whole assignment, no cap 💅

✨ SYNOPSIS ✨

bool pcie_pme_from_pci_bridge (struct pci_bus *bus , u8 devfn );

🎀 ARGUMENTS 🎀

• bus — the secondary bus of the bridge. That's the bus we're peeking at 👀
• devfn — the device/function number to check. Yes, that exact one, fr fr.

🦋 DESCRIPTION 🦋

Okay so here's the vibe: PME from PCI devices under a PCIe-PCI bridge may be converted to an in-band PCIe PME message. In that case, the bridge should use the Requester ID of device/function number 0 on its secondary bus. That's the behavior — iconic only 🔥

🌈 SEE ALSO 🌈

Kernel file ./drivers/pci/pcie/pme.c is the source-file main character, and these functions are all in the group chat too:

• pcie_pme_interrupt_enable(9)
• pcie_pme_walk_bus(9)
• pcie_pme_handle_request(9)
• pcie_pme_work_fn(9)
• pcie_pme_irq(9)
• pcie_pme_can_wakeup(9)
• pcie_pme_mark_devices(9)
• pcie_pme_probe(9)
• pcie_pme_suspend(9)
• pcie_pme_resume(9)
• pcie_pme_remove(9)
• pcie_pme_init(9)

okay bye bestie 💖 — source/version is ./drivers/pci/pcie, date is October 2026, mwah 💋