sch_init_one(9)

📦 version 7.3.1, in nixpkgs unstable

💖 sch_init_one(9) — like, the Kernel API Manual page bestie 💖

okay so picture this: it's the Kernel API Manual, and today's main character is sch_init_one. yes she's a 9th-section kernel function, yes she's iconic, and yes I'm gonna walk you through her whole vibe. periodt. ✨

🌸 NAME 🌸

sch_init_one — registers an SCH ATA PCI device with kernel services 🎀 like she's checking her device into the coolest club in town and the bouncer is the kernel itself.

🦋 SYNOPSIS 🦋

int sch_init_one (struct pci_dev *pdev , const struct pci_device_id *ent
);

she takes two args and hands you back an int, no cap 💅

💜 ARGUMENTS 💜

  • pdev — the PCI device that's about to get registered 🫶 this is the one walking the red carpet.
  • ent — the entry in sch_pci_tbl that matches with pdev 🌟 literally the plus-one that proves pdev belongs on the list.

🔥 DESCRIPTION 🔥

okay so the important thing here, the thing you cannot skip, is:

LOCKING: inherited from the PCI layer — and that means she may sleep 😴💀 not me warning you, but like, she may sleep, so act accordingly bestie. it's giving "handle me with care" energy fr fr.

✨ RETURN ✨

  • Zero on success 🎉 slay, everything worked.
  • or an -ERRNO value 😭 which is the "something went sideways" era. negative errno, classic.

👑 SEE ALSO 👑

💡 friendly reminder: sch_set_piomode(9) and sch_set_dmamode(9) are her sisters and they're all serving in the same family. go say hi.

okay that's the whole page bestie, you ate that 🍓 and one last thing — this little beauty lives in ./drivers/ata, dated October 2026, so if anyone asks where you found her, that's the receipt 💖✨🎀

📦 where this page comes from