Is it possible for the functional driver to directly access usbendpoint 0?

We plan to use endpoint 0 (control type) for some function specific
WRITE
functionality (like beep buzzer, blink error LED)

Is it possible for the functional driver to directly access usb
endpoint 0?
I could not find any DDK calls that can allow this access.

Thanks

yes. you can send a control transfer (_URB_CONTROL_TRANSFER(_EX)) down the
stack.

d

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"kevin" <jauming.tw@gmail.com> wrote in message
news:e15f6b32-6249-438d-8d0d-4d1054650cc6@v13g2000pro.googlegroups.com...
> We plan to use endpoint 0 (control type) for some function specific
> WRITE
> functionality (like beep buzzer, blink error LED)
>
> Is it possible for the functional driver to directly access usb
> endpoint 0?
> I could not find any DDK calls that can allow this access.
>
> Thanks