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Hi<br />
<br />
I have a driver which handles some &nbsp;IOCTLS that are synchronous, and one that is asynchronous. Can I / should I do 2 CreateFile() calls, one without FILE_FLAG_OVERLAPPED for the synchronous, and one with for the asynchronous? Is there any problem with this from the point of view that there is more than one handle to the driver open simultaneously? Does it depend on the driver?<br />
<br />
Regards<br />
tr5<br />

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Hi

I have a driver which handles some  IOCTLS that are synchronous, and one that is asynchronous. Can I / should I do 2 CreateFile() calls, one without FILE_FLAG_OVERLAPPED for the synchronous, and one with for the asynchronous? Is there any problem with this from the point of view that there is more than one handle to the driver open simultaneously? Does it depend on the driver?

Regards
tr5


Opening multiple handles to driver (How to do both synchronous and asynchronous io with DeviceIoControl?)

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