efar_init_one(9)

💅 efar_init_one(9) — a Kernel API Manual moment ✨

okay so before we even get into it: this is from the Kernel API Manual, section 9, and the whole vibe is "we're registering a PCI device and being very normal about it" 🎀

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🌸 NAME 🌸

efar_init_one — the function that registers an EFAR ATA PCI device with kernel services, bestie. that's literally her whole job 💅

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✨ SYNOPSIS ✨

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

like, she takes two pointers and gives you back an int. simple. iconic. no cap 🫶

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🦋 ARGUMENTS 🦋

• pdev — the PCI device you're registering, bestie. this is the main character of the whole operation 💖
• ent — the entry in efar_pci_tbl that matches up with pdev. they're a matched set, fr fr 🎀

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🔥 DESCRIPTION 🔥

so this one gets called from the kernel PCI layer. that's it, that's the tea ☕ the PCI layer is the one doing the calling, not you, so don't come for her 🌸

LOCKING: the locking here is inherited from the PCI layer, and heads up — it may sleep 😴💀 so don't go calling this from somewhere spicy where sleeping is not allowed. that's a whole situation you do not want.

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⭐ RETURN ⭐

• Zero on success 🎉 slay, she worked
• or a -ERRNO value 😭 which means something went sideways, and the errno will tell you what

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👑 SEE ALSO 👑

• kernel file ./drivers/ata/pata_efar.c — go read the source, iykyk 📖
• efar_pre_reset(9)
• efar_cable_detect(9)
• efar_set_piomode(9)
• efar_set_dmamode(9)

the whole efar friend group, honestly 🫶✨

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and that's the page, bestie 💜 this one lives down in ./drivers/ata, dated October 2026, version vibes and all — mwah, go register some devices responsibly 🌈🎀