> Please, check your descriptors. If you are in Linux, please post the > output of lsusb -vv for you device, or, if you are in Windows, check > the ouput of test-libusb-win32 app.
Ok what I see that there exist no endpoint. Does that make sense? How does the communication work in that case? Bus 002 Device 002: ID 09db:00f9 Measurement Computing Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x09db Measurement Computing Corp. idProduct 0x00f9 bcdDevice 1.01 iManufacturer 1 Measurement Computing iProduct 2 USB-2001-TC iSerial 3 015C5BB4 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 18 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 0 iInterface 0 Device Status: 0x0000 (Bus Powered) ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users