about WDF driver DMA transfer

NTDEV
1

I have a question about the last parameter(PSCATTER_GATHER_LIST SgList) of EvtProgramDma function .

Dose each element of SgList->Elements match a single physical memory page or a block of physically contiguous pages?

thanks.

2

> Dose each element of SgList->Elements match a single physical memory page or a block of

physically contiguous pages?

Block of.

–
Maxim S. Shatskih
Windows DDK MVP
xxxxx@storagecraft.com
http://www.storagecraft.com

3

thanks