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INtime SDK v7.1 > About INtime > Other system libraries > PCI Library > PciMsiNotAvailable

Determines whether the platform supports MSI delivery.

BOOLEAN PciMsiNotAvailable(void);



Return Values

TRUE if MSI is not available on the platform, else FALSE


In order to support MSI (Message Signaled Interrupts) a platform must have a chipset which is capable of supporting them. Certain early chipsets advertised support for MSI but were buggy. This call returns FALSE if the platform is capable of receiving MSIs and the chipset is not on the blacklist of buggy chipsets.


Versions Defined in Include Link to
INtime 4.0 intime/rt/include/pcibus.h pcibus.h pcibus.lib
See Also