I am a new user to PyUSB and LibUSB and am trying to set the device configuration, but have permission issues.
My system information is: OS Version: Linux 2.6.32-27-generic #49-Ubuntu SMP Thu Dec 2 00:51:09 UTC 2010 x86_64 GNU/Linux Libusb Version: libusb-1.0-0 PyUSB Version: 1.0.0-alpha-1 Code Snippet: ----------------------------------------- import usb.core DELLC_USB_VEND_ID = 0x413C DELLC_USB_PROD_ID = 0x2005 dev = usb.core.find(idVendor=DELLC_USB_VEND_ID, idProduct=DELLC_USB_PROD_ID) if dev is None: print "Device not found, quiting" return try: dev.set_configuration() except IOError: print "Unable to set the device configuration" ----------------------------------------- Output: ----------------------------------------- libusb couldn't open USB device /dev/bus/usb/003/003: Permission denied. libusb requires write access to USB device nodes. Unable to set the device configuration ----------------------------------------- A search of some sites suggest releasing the kernel lock on the device, using udev to remount the device within the user's privileges or running the script with root privileges. However, I was wondering what the preferred method for gaining read/write privileges to the device and how to accomplish this. -- Thanks, Daemeon
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