comedi_pci_enable(9)

🌸 NAME 🌸

okay so this page is from the Kernel API Manual, and the main character is comedi_pci_enable — Enable the PCI device and request the regions. literally what it says on the tin, bestie 💅

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✨ SYNOPSIS ✨

int comedi_pci_enable (struct comedi_device *dev );

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🎀 ARGUMENTS 🎀

• dev — COMEDI device. that’s the whole argument, she’s simple 🫶

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💅 DESCRIPTION 💅

Assuming dev->hw_dev is non-NULL, it’s assumed to be pointing to a struct device embedded in a struct pci_dev. bestie, we are enabling the PCI device and requesting its regions ✨

Set dev->ioenabled to true if it worked, otherwise undo what was done. no cap, that’s the vibe.

Calls to comedi_pci_enable and comedi_pci_disable cannot be nested. periodt. 🙈

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💖 RETURN 💖

• 0 on success — slay
• -ENODEV if dev->hw_dev is NULL — not me getting no device 😭
• -EBUSY if regions busy — busy era, blocked 💀
• or some negative error number if it failed to enable the PCI device

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🦋 SEE ALSO 🦋

Kernel file ./drivers/comedi/comedi_pci.c plus these iconique references:

• comedi_to_pci_dev(9)
• comedi_pci_disable(9)
• comedi_pci_detach(9)
• comedi_pci_auto_config(9)
• comedi_pci_auto_unconfig(9)
• comedi_pci_driver_register(9)
• comedi_pci_driver_unregister(9)

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that’s the tea from ./drivers/comedi, dated October 2026, for comedi_pci_enable(9) — stay slay, mwah 💋✨