STRUCT PCI_EPC_EVENT_OPS(9)

✨ struct pci_epc_event_ops — it's giving "kernel API manual" energy ✨

okay so bestie, welcome to the glow-up of struct pci_epc_event_ops(9) from the Kernel API Manual 💖 literally the whole point of this page is one struct, and she is iconic.

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🌸 NAME 🌸

struct pci_epc_event_ops — the callbacks for capturing the EPC events 🎀

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🦋 SYNOPSIS 🦋

struct pci_epc_event_ops {
    int (*epc_init)(struct pci_epf *epf);
    void (*epc_deinit)(struct pci_epf *epf);
    int (*link_up)(struct pci_epf *epf);
    int (*link_down)(struct pci_epf *epf);
    int (*bus_master_enable)(struct pci_epf *epf);
 };

no cap, that's the whole struct, copied exactly, not a single character touched 💅

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👑 Members 👑

okay so these are the function pointers she's serving, one per vibe check:

• epc_init — the callback for the EPC initialization complete event ✨ like, "we're done setting up, main character has entered the building"
• epc_deinit — the callback for the EPC deinitialization event 💀 the goodbye moment, she's leaving the group chat
• link_up — the callback for the EPC link up event 🌈 good news alert, the link is up
• link_down — the callback for the EPC link down event 😭 the sad one, the link said "it's not you it's me"
• bus_master_enable — the callback for the EPC Bus Master Enable event 🔥 she's officially allowed to boss the bus around

note: every single one of these takes a struct pci_epf *epf — that's the pointer they all get handed, fr fr. and heads up, epc_init, link_up, link_down and bus_master_enable return int, but epc_deinit returns void (she gives nothing back, and that's valid 🫶).

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🧚 SEE ALSO 🧚

go read the kernel file ./include/linux/pci-epf.h — that's the mothership, bestie 🚀

and then these absolute legends, iykyk:

• struct pci_epf_header(9)
• struct pci_epf_ops(9)
• struct pci_epf_driver(9)
• struct pci_epf_bar_submap(9)
• struct pci_epf_bar(9)
• struct pci_epf_doorbell_msg(9)
• struct pci_epf(9)
• struct pci_epf_msix_tbl(9)

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and that's the page, bestie 🎀 mwah 💋 — straight out of ./include/linux, dated October 2026, still filed under struct pci_epc_event_ops(9) because she ate and left no crumbs 👑✨