1PCI_BUS_FIND_CAPABIL(9) Hardware Interfaces PCI_BUS_FIND_CAPABIL(9)
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6 pci_bus_find_capability - query for devicesĀ“ capabilities
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9 int pci_bus_find_capability(struct pci_bus * bus, unsigned int devfn,
10 int cap);
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13 bus
14 the PCI bus to query
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16 devfn
17 PCI device to query
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19 cap
20 capability code
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23 Like pci_find_capability but works for pci devices that do not have a
24 pci_dev structure set up yet.
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26 Returns the address of the requested capability structure within the
27 deviceĀ“s PCI configuration space or 0 in case the device does not
28 support it.
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31Kernel Hackers Manual 2.6. June 2019 PCI_BUS_FIND_CAPABIL(9)