Re: can driver prevent the handle? by Doron
Doron
Sun Oct 14 19:19:56 PDT 2007
you can fail any i/o you receive based on state. you have maintain your own
state once there is a valid handle.
d
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"zonhai.won" <zonhai.won@gmail.com> wrote in message
news:eojTqqZDIHA.3716@TK2MSFTNGP03.phx.gbl...
> hi all,
> I want to know that, after I get the VALID_HANDLE
> from SetupDiGetClassDevs (do the handle with a USB
> device), whether the driver can prevent the windows
> to communicate with the USB device?
> That is to say, can driver let windows to know
> the USB device is connected on the port, but the
> driver won't let windows to communicate with the
> USB device?
>
>