2012/2/17 Yunong Pang <029...@gmail.com>: > The result remains the same to not import libusb01. > > How can I test that there is data really staying in EP6 ? > >
I don't know how to do this, as data is requested on demand. There is no buffering is USB. Have you tried to apply a larger timeout value? > > >>>> from usb.backend import libusb01 >>>> b = libusb01.get_backend() >>>> dev = usb.core.find(idVendor=0x0547, idProduct=0x1002, backend = b) >>>> dev.set_configuration() >>>> ret = dev.read(0x86, 1024, 0, 100) > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File "/usr/lib/python2.7/site-packages/usb/core.py", line 624, in read > self.__get_timeout(timeout) > File "/usr/lib/python2.7/site-packages/usb/_debug.py", line 53, in > do_trace > return f(*args, **named_args) > File "/usr/lib/python2.7/site-packages/usb/backend/libusb10.py", line 483, > in bulk_read > timeout) > File "/usr/lib/python2.7/site-packages/usb/backend/libusb10.py", line 581, > in __read > timeout)) > File "/usr/lib/python2.7/site-packages/usb/backend/libusb10.py", line 353, > in _check > raise USBError(_str_error[retval.value]) > usb.core.USBError: Operation timed out >>>> > > -- Best Regards, Wander Lairson Costa ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
