Problems writting in a USB raw device!!!

[KURIK]

Somebaody told me how can I write in a USB raw device using VISA functions or other?
I read perfectly with Get USB interrupt data, but there is not a function to write!!!

[JoshuaP]

NI-VISA currently only supports writing bulk or control transfers. It does not currently support writing on an interrupt out pipe. You can transmit a bulk packet using the VISA Write or write out to a control endpoint using VISA USB Control Out.

I hope this helps out.

-Josh