PCI_DEV_PRESENT(9) Hardware Interfaces PCI_DEV_PRESENT(9)NAMEpci_dev_present - Returns 1 if device matching the device list is
present, 0 if not.
SYNOPSIS
int pci_dev_present(const struct pci_device_id * ids);
ARGUMENTS
ids
A pointer to a null terminated list of struct pci_device_id
structures that describe the type of PCI device the caller is
trying to find.
OBVIOUS FACT
You do not have a reference to any device that might be found by this
function, so if that device is removed from the system right after this
function is finished, the value will be stale. Use this function to
find devices that are usually built into a system, or for a general
hint as to if another device happens to be present at this specific
moment in time.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 PCI_DEV_PRESENT(9)