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jdcoburn
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USB NOTIFICATION

hi -- i'm using C#, VS2010, and .net 4.0. i've written an application that interfaces to a custom usb device (using a bulk protocol driver). it works fine if the device is plugged in before i open the application (i initialize theusb device protocol when i open the appication). what i would like to do is be able to plug in the device after the application is open. to do that, i would need to use an event with a delegate attached that would call the initialization. what i'm looking for is what event should i be posting for?
I use P/invoke to call the various methods in the usb device handler that was supplied to me as part of the device. i have access to the C code for the device handler. as near as i can tell, the device handler just wraps win32usb calls.
thanks,
C#Visual C++.NET

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jdcoburn

8/22/2022 - Mon
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jdcoburn

ASKER
i haven't tried it yet, but it looks complete. the url reference is titled to what i am looking for.
jdcoburn

ASKER
hi -- where does the syntax "query.Condition = @"TargetInstance ISA 'Win32_USBControllerdevice'"; come from? i'd like to refine the query so it only detects my device adding or leaving the usb enumeration.
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