[Pyusb-users] pyUSB error

[Gabriel <gb...@gm...>]

Hi all:
I have this problem with pyusb:
I wrote this code

import usb

buses = usb.busses()
dev = None


for bus in buses :
       for device in bus.devices :
               if device.idVendor == 0x1781:
                       print u"ProtoTermociclador found"
                       dev=device
                       break
if dev == None:
    print 'ProtoTermociclador device not found'
else:
    handle = dev.open()
    handle.interruptWrite(0x01,'\x00')

I run the code with sudo python mycode.py and I get an error.
usb.USBError: error submitting URB: Device or resource busy
Please you help my with it...
Thank you very much

-- 
Gabriel