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I am just going through the OSR page https://www.osr.com/nt-insider/2011-issue2/basics-wdf-queues/
I read that "you can’t touch pagable memory or use Dispatcher Objects (such as mutexes and events) for synchronization within these callbacks" from below paragraph. Does the statement hold true for UMDf driver as well? Because, I am having UMDF Virtual Serial Driver and i am using Mutex and Events for synchronization and it is working (from with in the event callbacks).
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