Re: IRP_MJ_READ/IRP_MJ_WRITE

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wdk doc says that Irp->userbuffer is used only in case Deviceiocontrol IRPs.

It is used always for all read/write/IOCTL IRPs.

To touch this buffer, you need a) __try/__except block b) be in the caller's
process context.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@xxxxxxxxxxxxxxxx
http://www.storagecraft.com

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