SCO OpenServer

pci_search(D3oddi)

pci_search -- search PCI buses for a device matching specified fields

Synopsis

   #include <sys/pci.h>
      
   int pci_search(unsigned short vend_id, unsigned short dev_id,
                 unsigned short base_class, unsigned short sub_class,
                 unsigned short index, struct pci_devinfo infptr);

Description

The pci_search( ) function searches a system's PCI buses for devices that match any or all of the input parameters.

Arguments

vend_id: Vendor identification of the device.
dev_id: Device identification of the device.
base_class: Base class code of the device.
sub_class: Sub class code of the device.
index: Number of devices to skip. An index value of n returns details about the nth device matching the input parameters. Index numbering begins at 0.
infptr: Pointer to the pci_devinfo(D4oddi) structure in which to return the results.

Any of the input parameters except index may be wildcards. A wildcard is specified using the value 0xFFFF.

Return values

A return value of 1 indicates success, and that the pci_devinfo structure is valid. 0 indicates a matching device could not be found.

Usage

Context and synchronization

Initialization context

Hardware applicability

PCI bus.

Version applicability

oddi: 3, 3mp, 4, 4mp, 5, 5mp, 6, 6mp

UnixWare 7 DDI compatibility

DDI drivers access PCI configuration information through the resource manager database. Use the cm_getval(D3) function to access information supported by the parameters documented on the cm_params(D5) manual page and function such as cm_read_devconfig(D3) and cm_write_devconfig(D3) to access other configuration information. Note that DDI drivers cannot access all the PCI configuration information that SCO OpenServer drivers can access.

References

pci(D4oddi), pci(HW)

pci_buspresent(D3oddi), pci_read(D3oddi), pci_specialcycle(D3oddi), .LR pci_write D3oddi

``PCI''