Request the unlimited number of map registers in IoGetDmaAdapter.
Max
----- Original Message -----
From: “Ta H.”
To: “NT Developers Interest List”
Sent: Friday, April 19, 2002 9:58 AM
Subject: [ntdev] DMA for Read/Write simultaneously [Revisit]
> Thanks for everyone’s help. Now I set up a DMA adapter with two device
> objects for R/W. It looks like to me even though I can queue a read while a
> write is in effect, that read won’t start until I free map registers in my
> write DPC; ie, the wtite DMA is done. In other words, it is still a
> sequential order. Since both reads/writes require staged transfers, my
> original idea queuing staged reads and writes. Is it doable or something I
> miss?
>
> Regards,
>
> Ta H.
>
> _________________________________________________________________
> MSN Photos is the easiest way to share and print your photos:
> http://photos.msn.com/support/worldwide.aspx
>
>
> —
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to %%email.unsub%%
>