Returns the number of MSIs supported by a device.

DWORD PcigetMsiCount( 
    PCIDEV *pPciDevice 
);

Parameters

pPciDevice

A pointer to a PCIDEV structure, initialized by calling PciReadHeader, or PciFindDevice or PciFindClass.

Return Values

1, 2, 4, 8, 16 or 32

The number of MSI vectors supported by a device.

0xffffffff

The device does not support MSI.

Requirements