I need to send some information along with each io request (read/write) that my lower disk filter receives to the disk drive (ATA/SCSI). Is there any field in the IRP, SRB etc that I can use? Thank you.
>receives to the disk drive (ATA/SCSI). Is there any field in the IRP, SRB etc that I can use?
When the lower filter gets the request, it should handicraft another IRP+SRB and send the command to the drive.
Then, when this command will be complete, the filter should send down the original request.
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Maxim S. Shatskih
Windows DDK MVP
xxxxx@storagecraft.com
http://www.storagecraft.com
Thanks Maxim. This was the first idea that came to my mind also but since I need to do this with every read/write it appeared to me (at least conceptually) a significant overhead. Yeah I do not have any # as of now to quantify the overhead.