35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include "pci.h"
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/**
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* pci_find_device - begin or continue searching for a PCI device by vendor/device id
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* @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
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* @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
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* @from: Previous PCI device found in search, or %NULL for new search.
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*
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* Iterates through the list of known PCI devices. If a PCI device is found
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* with a matching @vendor and @device, a pointer to its device structure is
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* returned. Otherwise, %NULL is returned.
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* A new search is initiated by passing %NULL as the @from argument.
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* Otherwise if @from is not %NULL, searches continue from next device
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* on the global list.
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*
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* NOTE: Do not use this function any more; use pci_get_device() instead, as
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* the PCI device returned by this function can disappear at any moment in
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* time.
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*/
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struct pci_dev *pci_find_device(unsigned int vendor, unsigned int device,
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struct pci_dev *from)
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{
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struct pci_dev *pdev;
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pci_dev_get(from);
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pdev = pci_get_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from);
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pci_dev_put(pdev);
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return pdev;
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}
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EXPORT_SYMBOL(pci_find_device);
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