Hi everyone, I'm testing PyUSB right now and tried this example: >>> msg = 'test' >>> assert dev.ctrl_transfer(0x40, CTRL_LOOPBACK_WRITE, 0, 0, msg) == len(msg) >>> ret = dev.ctrl_transfer(0x40, CTRL_LOOPBACK_READ, 0, 0, len(msg)) >>> sret = ''.join([chr(x) for x in ret]) >>> assert sret == msg
The problem is, that the variables CTRL_LOOPBACK_WRITE and CTRL_LOOPBACK_READ aren't recognized. I have imported usb.core and usb.util, but it doesn't work. I looked for these variables in the PyUSB source code with file search, but I didn't find them. I'm using the latest 1.0.0a3 pyUSB and libusb-win32. Thanks in advance for any suggestion. Stefano ------------------------------------------------------------------------------ Got visibility? Most devs has no idea what their production app looks like. Find out how fast your code is with AppDynamics Lite. http://ad.doubleclick.net/clk;262219671;13503038;y? http://info.appdynamics.com/FreeJavaPerformanceDownload.html _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
