piix_init_one(9)

💖 piix_init_one(9) 💖

bestie hiiii 🫶 welcome to the Kernel API Manual page for piix_init_one, and no cap this one is a whole little vibe. It’s the function that registers a PIIX ATA PCI device with kernel services, and we’re gonna walk through it together, okay? ✨

🌸 NAME 🌸

piix_init_one — Register PIIX ATA PCI device with kernel services 🎀

✨ SYNOPSIS ✨

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

🎀 ARGUMENTS 🎀

• pdev — the PCI device to register 💖
• ent — the entry in piix_pci_tbl matching with pdev 🦋

💅 DESCRIPTION 💅

okay so this one gets called from the kernel PCI layer 🌈. We probe for combined mode (sigh 😮‍💨), and then we hand over control to libata, for it to do the rest. That’s literally the whole plan bestie.

LOCKING: inherited from the PCI layer (may sleep 😴). Like, respect the nap, fr fr 💤.

🦋 RETURN 🦋

Zero on success, or -ERRNO value 💀. Iconic and simple.

👑 SEE ALSO 👑

• Kernel file ./drivers/ata/ata_piix.c 📁
• ich_pata_cable_detect(9)
• piix_pata_prereset(9)
• piix_set_piomode(9)
• do_pata_set_dmamode(9)
• piix_set_dmamode(9)
• ich_set_dmamode(9)
• piix_check_450nx_errata(9)

and that’s the page, bestie 💅 signing off from ./drivers/ata, October 2026, with piix_init_one(9) energy forever 🎀✨