eeh_pcid_get(9)

🎀 eeh_pcid_get(9) 🎀

okay so this is a page from the Kernel API Manual, bestie, and it's all about grabbing a PCI device driver and not letting the kernel explode. iconic behavior only 💅

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✨ NAME ✨

eeh_pcid_get — Get the PCI device driver 🫶

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🌸 SYNOPSIS 🌸

struct pci_driver * eeh_pcid_get (struct pci_dev *pdev );

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🦋 ARGUMENTS 🦋

• pdev — the PCI device. that's the one, that's the whole argument, she's simple and she knows it 💖

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🔥 DESCRIPTION 🔥

So the way that this works is: you call this function to retrieve the PCI device driver for the PCI device you pointed at with pdev. Literally just fetch the driver for the indicated PCI device, no cap. ✨

But wait, there's more, and this part is lowkey the main character energy of the whole page: the function also increases the reference of the PCI device driver so that it doesn't get unloaded on the fly. 🫶

bestie, pay attention here — if that reference didn't get bumped, the driver could get unloaded right out from under you and then you'd see a kernel crash. 😭 not cute, not slay, just pain. so the reference count is doing the lord's work, fr fr 💀

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👑 SEE ALSO 👑

Kernel file ./arch/powerpc/kernel/eeh_driver.c, plus all these other icons:

• eeh_pcid_put(9)
• eeh_disable_irq(9)
• eeh_enable_irq(9)
• eeh_report_error(9)
• eeh_report_mmio_enabled(9)
• eeh_report_reset(9)
• eeh_report_resume(9)
• eeh_report_failure(9)
• eeh_reset_device(9)
• eeh_handle_normal_event(9)
• eeh_handle_special_event(9)

go read the whole friend group, they all hang out together 🌈

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k that's the page!! 🧚 this little drop lives in ./arch/powerpc/kernel and it's dated October 2026 — put it in your calendar, screenshot it, send it to the group chat, whatever. mwah 💜🎀