[Applies to KMDF only]
The WdfDmaEnablerGetMaximumLength method returns the maximum transfer length, for a single DMA transfer, that a device supports.
size_t WdfDmaEnablerGetMaximumLength( WDFDMAENABLER DmaEnabler );
A handle to a DMA enabler object that the driver obtained from a previous call to WdfDmaEnablerCreate.
WdfDmaEnablerGetMaximumLength returns the maximum length of a DMA transfer, in bytes. This length is the same value that was specified in a previous call to WdfDmaEnablerCreate.
A bug check occurs if the driver supplies an invalid object handle.
|Minimum KMDF version||1.0|
|Header||wdfdmaenabler.h (include Wdf.h)|
|Library||Wdf01000.sys (see Framework Library Versioning.)|
|DDI compliance rules||DriverCreate, KmdfIrql, KmdfIrql2|