hello  I am creating a driver for moxa usb to serial adapter
i use usb ddk got from www.qnx.com->Prerelease Software->QNX 4 Beta Software->QNX4 USB 1.0 Host Controller and class 
driver support->QNX USB DDK QNX 4.25

I have written a drier similar to printer example. In the insertion function after obtainnig configuration, i send some 
firmware data to the device, but after first packed usd_urb_status returns EBUSY and this state is not changing even 
after few minutes.
None of open pipe urb_alloc or usbd_io functions returned any errors.
I checkd usbd_urb_status just before usbd_io and its still returning EBUSY. I made same test with usb mass storage and 
it is EBUSY also. 
Mass storage works properly using io-usb and umass.

Can I use  bulk transer inside insertion function?
Can I use usbd_status instead of urb_status? What are the parameters for this function? the help pages doesn't 
descriptits clearl, I tried obtainnig something of usbd_descriptors_t size but it returns EMSGSIZE.