pci_dev_res_add_to_list(9)

💅 pci_dev_res_add_to_list(9) 💅

okay so welcome to the Kernel API Manual, bestie — today's main character is pci_dev_res_add_to_list, and yes she's exactly as iconic as her name is long ✨

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✨ NAME ✨

pci_dev_res_add_to_list — add a new resource tracker to the list 🎀

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🦋 SYNOPSIS 🦋

int pci_dev_res_add_to_list (struct list_head *head , struct pci_dev
*dev , struct resource *res , resource_size_t add_size , resource_size_t
min_align );

like, look at that signature. five whole parameters. she ate and left no crumbs 💅

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🌸 ARGUMENTS 🌸

• head — the head of the list, aka the starting point, the home base, the group chat the resource is about to get added to 🫶
• dev — the device to which the resource belongs, so like, whose resource is this anyway 💖
• res — the resource to be tracked, the one we're putting on the list, the new addition to the roster 👑
• add_size — additional size to be optionally added to the resource, lowkey a little extra on top, optional though, no pressure 🌸
• min_align — minimum memory window alignment, the bare minimum alignment the memory window needs, and honestly? standards 💅

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🔥 SEE ALSO 🔥

this is the part where I hand you the whole friend group, iykyk 🧚 — all of these live in the kernel file ./drivers/pci/setup-bus.c:

• pbus_select_window_for_type(9)
• pbus_select_window(9)
• reassign_resources_sorted(9)
• assign_requested_resources_sorted(9)
• pbus_size_io(9)
• pbus_size_mem(9)

go read them, bestie, they're literally all in there together, no cap 🌈

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ngl, that's genuinely the whole page — no hidden sections, no secret options, just the vibe check on adding a resource tracker to the list 💀

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mwah, that's a wrap 🎀 this little page came out of ./drivers/pci and it's dated October 2026, and the title on the tin is still pci_dev_res_add_to_list(9) — slay, bye 💜