2011/5/30 Vishwanath Saragadam <[email protected]>: > Hi, > I am new to Pyusb as well as python.I am trying a simple usb > communucation but is not working.when i invoke dev.write(), i get the > following error. > > > Traceback (most recent call last): > File "<pyshell#5>", line 1, in <module> > dev.write(1, 'test') > File "E:\Python27\lib\site-packages\usb\core.py", line 593, in write > intf = self._ctx.get_interface(self, interface) > File "E:\Python27\lib\site-packages\usb\core.py", line 148, in > get_interface > cfg = self.get_active_configuration(device) > File "E:\Python27\lib\site-packages\usb\core.py", line 165, in > get_active_configuration > bConfigurationValue=self.backend.get_configuration(self.handle) > File "E:\Python27\lib\site-packages\usb\_debug.py", line 52, in do_trace > return f(*args, **named_args) > File "E:\Python27\lib\site-packages\usb\backend\libusb01.py", line 438, in > get_configuration > 100 > File "E:\Python27\lib\site-packages\usb\_debug.py", line 52, in do_trace > return f(*args, **named_args) > File "E:\Python27\lib\site-packages\usb\backend\libusb01.py", line 518, in > ctrl_transfer > timeout > WindowsError: exception: access violation reading 0x00000018 > > > Please help, as it is very crucial for my project. > > Could you please post your code?
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