ACPIFindPCIDevice

Find PCI device by Bus:Dev:Fun

Syntax
APIRET APIENTRY ACPIFindPCIDevice(UINT32 Bus, UINT32 Dev, UINT32 Fun, UINT32 *PicIRQ, UINT32 *ApicIRQ, ACPI_HANDLE *Hdl, char *Component)

Parameters

 * Bus : PCI Bus
 * Dev : PCI Device
 * Fun : PCI Finction
 * Component : Name of caller for acpica$ log


 * Hdl : Finding handle for device
 * PicIRQ : IRQ in PIC mode or boot stage
 * ApicIRQ : IRQ in APIC mode or zero if problem or PIC mode

Example
 temp2 = temp3 = 0; rc = ACPIFindPCIDevice( (ULONG)busNr,                   // Bus                         (ULONG)devNr,                    // Dev                         (ULONG)(pcidev->devfn >> 8) & 7, // Function                         &temp1,                          // PIC IRQ                         &temp3,                          // APIC IRQ                         NULL,                            // ACPI handle to finding device                         "Uniaud32");                 // Name for acpi log if (!rc) {   // Check APIC IRQ, if we have /SMP /APIC, must be set if (temp3) temp = (temp & (~0xff)) | (temp3 & 0xff); // Check PIC IRQ else if (temp1) temp = (temp & (~0xff)) | (temp1 & 0xff); dprintf(("pci_query_device: IRQs ACPI PIC%d APIC%d set:0x%x", temp1, temp3,temp)); } 

Links

 * ACPI Toolkit Web Site