[xjk220]

Hi all, i need to implement a wdm driver that needs to send kernel information back to user-mode. I am wondering whats better between using just normal structures for storing such information vs using linked lists and synchronization locks, what do you guys think about best efficiency between both methods ?

thanks in advanced

[Brock]

Take a look at the Inverted Call Model. Instead of your usermode application using DeviceIoControl with a supplied IOCTL to the driver the driver queues event info to the usermode application, hence the name Inverted.