pci_find_next_bus(9)

🌸 NAME 🌸

pci_find_next_bus — begin or continue searching for a PCI bus. Okay so this is the pci_find_next_bus(9) page from the Kernel API Manual, and it's literally your lil guide to walking the PCI bus list. 🦋✨

✨ SYNOPSIS ✨

struct pci_bus * pci_find_next_bus (const struct pci_bus *from );

🎀 ARGUMENTS 🎀

• from — Previous PCI bus found, or NULL for new search. That's the whole vibe: hand over the last bus you found to keep going, or pass NULL to start fresh. 💅

💖 DESCRIPTION 💖

It iterates through the list of known PCI buses. A new search is initiated by passing NULL as the from argument. Otherwise, if from is not NULL, searches continue from the next device on the global list.

So basically: NULL = new-search era ✨, non-NULL = pick up from the next device on the global list. No cap. 🫶

🌈 SEE ALSO 🌈

Kernel file ./drivers/pci/search.c — plus the whole friend group:

• pci_find_bus(9)
• pci_get_slot(9)
• pci_get_domain_bus_and_slot(9)
• pci_get_subsys(9)
• pci_get_device(9)
• pci_get_class(9)
• pci_get_base_class(9)
• pci_dev_present(9)

That's the whole page, bestie. This one lives in ./drivers/pci, stamped October 2026, and it's the pci_find_next_bus(9) page — source/version and date all accounted for, periodt. 🎀💜🔥