1PCI_BUS_FIND_CAPABIL(9)       Hardware Interfaces      PCI_BUS_FIND_CAPABIL(9)
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NAME

6       pci_bus_find_capability - query for devices' capabilities
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SYNOPSIS

9       int pci_bus_find_capability(struct pci_bus * bus, unsigned int devfn,
10                                   int cap);
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ARGUMENTS

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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DESCRIPTION

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       device's PCI configuration space or 0 in case the device does not
28       support it.
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31Kernel Hackers Manual 3.10         June 2019           PCI_BUS_FIND_CAPABIL(9)
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