Re: [ros-dev] Wine I/O Manager for Kernel Services

[Gunnar Dalsnes]

> > Can DriverEntry block or must it return immediately ?
>
> Immediately.

MSDN: "The only driver routines that can safely wait on events, 
semaphores, mutexes, or timers are those that run in a nonarbitrary 
thread context at IRQL PASSIVE_LEVEL, such as driver-created threads, 
the DriverEntry and Reinitialize routines, or dispatch routines for 
inherently synchronous I/O operations (such as most device I/O control 
requests)."

So you _can_ block in DriverEntry, but i guess most drivers don't.

G.