1PCI_GET_DOMAIN_BUS_A(9)       Hardware Interfaces      PCI_GET_DOMAIN_BUS_A(9)
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NAME

6       pci_get_domain_bus_and_slot - locate PCI device for a given PCI domain
7       (segment), bus, and slot
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SYNOPSIS

10       struct pci_dev * pci_get_domain_bus_and_slot(int domain,
11                                                    unsigned int bus,
12                                                    unsigned int devfn);
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ARGUMENTS

15       domain
16           PCI domain/segment on which the PCI device resides.
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18       bus
19           PCI bus on which desired PCI device resides
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21       devfn
22           encodes number of PCI slot in which the desired PCI device resides
23           and the logical device number within that slot in case of
24           multi-function devices.
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DESCRIPTION

27       Given a PCI domain, bus, and slot/function number, the desired PCI
28       device is located in the list of PCI devices. If the device is found,
29       its reference count is increased and this function returns a pointer to
30       its data structure. The caller must decrement the reference count by
31       calling pci_dev_put. If no device is found, NULL is returned.
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34Kernel Hackers Manual 3.10         June 2019           PCI_GET_DOMAIN_BUS_A(9)
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