__devm_pci_epc_create(9)

📦 version 7.3.1, in nixpkgs unstable

💅 __devm_pci_epc_create 💅

okay bestie, welcome to the __devm_pci_epc_create(9) page — yes that's the man page name, and yes it's a mouthful, but we move. This is the kernel API manual vibe, and this lil function is literally the main character of EPC device creation. 🎀

✨ NAME ✨

__devm_pci_epc_create — create a new endpoint controller (EPC) device 🦋

🌸 SYNOPSIS 🌸

struct pci_epc * __devm_pci_epc_create (struct device *dev , const
       struct pci_epc_ops *ops , struct module *owner );

that's the whole signature, copy it exactly bestie, no typos allowed 💅

🫶 ARGUMENTS 🫶

  • dev — the device that's creating the new EPC. like, the one holding the aux cord here 🎧
  • ops — the function pointers for performing EPC operations. all the actual behaviour lives here ✨
  • owner — the owner of the module that creates the EPC device. gotta claim your work, periodt 👑

💖 DESCRIPTION 💖

so you invoke this when you wanna create a new EPC device and add it to the pci_epc class. slay. 🌈

and while it's at it? it also associates the device with the pci_epc using devres. the way that devres just handles the lifecycle for you, honestly iconic 🧚

here's the tea on cleanup: on driver detach, the release function is invoked on the devres data, and then the devres data is freed. no manual teardown drama, no leaked vibes 😭✨

ngl, the whole point is that devres does the boring part for you — but remember the release function runs first, and then the devres data gets freed. order matters, iykyk 💀

🦋 SEE ALSO 🦋

the kernel file lives at ./drivers/pci/endpoint/pci-epc-core.c and like, here's the whole friend group 🫶:

and that's the page!! 🎀 this one's filed under ./drivers/pci/endpoint, dated October 2026 — so yeah, mark your calendar bestie, we're ahead of the curve 💜✨ go forth and create EPC devices responsibly, mwah 💅🔥

📦 where this page comes from