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Function RTT_BIOS_GetInterruptRouting

This function returns the PCI interrupt routing options available on the system board and information about interrupts exclusively assigned to PCI devices:

int RTT_BIOS_GetInterruptRouting(RTT_BIOS_IRQ_ROUTING * RoutingInfo, 
                                 WORD                 * Entries);

Parameters

RoutingInfo

Must point to an array of RTT_BIOS_IRQ_ROUTING structures to receive the returned information.

Entries

Must be initialized with the number of elements in this array. When the function returns successfully, *Entries is changed to the actual number of entries returned. If the function fails with RTT_BIOS_BUFFER_TOO_SMALL, *Entries is set to the number of entries required to satisfy the call.

return value

RTT_BIOS_SUCCESSFUL or an error code, see section PCI BIOS.

More information about this function is available in the PCI BIOS Specification.

PCI BIOS

Function RTT_BIOS_FindClassCode

Function RTT_BIOS_SetPCIInt