USBOpenInterface with kIOReturnExclusiveAccess error

[yogish]

Hi,

I am using USBNotificationExample with mass storage device.
But when i execute the code ,it return an error for USBOpenInterface with kIOReturnExclusiveAccess.

How do i fix the problem?

Thanks.
yogi

 

[ElDiabloConCaca]

What exact error does it return?

Could it be linked to this:

http://lists.apple.com/archives/Usb/2002/Mar/msg00112.html