include vdmad.inc VxDcall VDMAD_Set_Region_Info |
The VDMAD_Set_Region_Info service sets information about the current region assigned to a DMA handle. This service must be called before calling the VDMAD_Set_Phys_State service.
EAX
Specifies the DMA handle.
BL
Specifies the buffer identifier.
BH
Specifies whether pages are locked (zero if not locked, nonzero if locked).
ESI
Specifies the region linear.
ECX
Specifies the size in bytes.
EDX
Specifies the physical address for the transfer.
This service has no return value.
Flags